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Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green...

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PRIMARY COLORS Making colored light 3/16/2016 ©cgrahamphysics.com 2016
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Page 1: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

PRIMARY COLORS

Making colored light

3162016 copycgrahamphysicscom 2016

Which circles are the same colour on each side

3162016 copycgrahamphysicscom 2016

What are primary colors

3162016 copycgrahamphysicscom 2016

Not in Physics ndash we are talking about light

3162016 copycgrahamphysicscom 2016

Red Orange Yellow Green Blue Violet

Mixing all these colors together we get what color

3162016 copycgrahamphysicscom 2016

Primary colors in Physics are

Blue Red

Green

3162016 copycgrahamphysicscom 2016

Are you smart

Say the color not the word

3162016

red blue

white

yellow

black

orange

pink

green

copycgrahamphysicscom 2016

Why are there primary colours

The Wonderful World Of Colour - YouTube [360p]mp4

3162016 copycgrahamphysicscom 2016

Aim To explain why some objects have colors Recall the primary colours Recall the outcome of mixing colors Key words Absorption ndash Filter ndash Transmit ndash Primary colors - Secondary colors -

3162016 copycgrahamphysicscom 2016

You are about to see an artists impression of a famous moment in sciencehellip

You will have 20 seconds to look at the picture

Try and observe and memorize as many details as you can

End 3162016 copycgrahamphysicscom 2016

In the picturehellip

1 Is the scientist wearing a jacket or just a waist coat

2 Does the scientist have short hair or long hair

3 The scientist was holding something What was he holding and in what hand

4 Which famous scientist is this and what was he doing

Jacket and Waist coat

Long hair

Prism in right hand

Newton discovered the dispersion Of light

3162016 copycgrahamphysicscom 2016

Would this have been easier

3162016 copycgrahamphysicscom 2016

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 2: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

Which circles are the same colour on each side

3162016 copycgrahamphysicscom 2016

What are primary colors

3162016 copycgrahamphysicscom 2016

Not in Physics ndash we are talking about light

3162016 copycgrahamphysicscom 2016

Red Orange Yellow Green Blue Violet

Mixing all these colors together we get what color

3162016 copycgrahamphysicscom 2016

Primary colors in Physics are

Blue Red

Green

3162016 copycgrahamphysicscom 2016

Are you smart

Say the color not the word

3162016

red blue

white

yellow

black

orange

pink

green

copycgrahamphysicscom 2016

Why are there primary colours

The Wonderful World Of Colour - YouTube [360p]mp4

3162016 copycgrahamphysicscom 2016

Aim To explain why some objects have colors Recall the primary colours Recall the outcome of mixing colors Key words Absorption ndash Filter ndash Transmit ndash Primary colors - Secondary colors -

3162016 copycgrahamphysicscom 2016

You are about to see an artists impression of a famous moment in sciencehellip

You will have 20 seconds to look at the picture

Try and observe and memorize as many details as you can

End 3162016 copycgrahamphysicscom 2016

In the picturehellip

1 Is the scientist wearing a jacket or just a waist coat

2 Does the scientist have short hair or long hair

3 The scientist was holding something What was he holding and in what hand

4 Which famous scientist is this and what was he doing

Jacket and Waist coat

Long hair

Prism in right hand

Newton discovered the dispersion Of light

3162016 copycgrahamphysicscom 2016

Would this have been easier

3162016 copycgrahamphysicscom 2016

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 3: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

What are primary colors

3162016 copycgrahamphysicscom 2016

Not in Physics ndash we are talking about light

3162016 copycgrahamphysicscom 2016

Red Orange Yellow Green Blue Violet

Mixing all these colors together we get what color

3162016 copycgrahamphysicscom 2016

Primary colors in Physics are

Blue Red

Green

3162016 copycgrahamphysicscom 2016

Are you smart

Say the color not the word

3162016

red blue

white

yellow

black

orange

pink

green

copycgrahamphysicscom 2016

Why are there primary colours

The Wonderful World Of Colour - YouTube [360p]mp4

3162016 copycgrahamphysicscom 2016

Aim To explain why some objects have colors Recall the primary colours Recall the outcome of mixing colors Key words Absorption ndash Filter ndash Transmit ndash Primary colors - Secondary colors -

3162016 copycgrahamphysicscom 2016

You are about to see an artists impression of a famous moment in sciencehellip

You will have 20 seconds to look at the picture

Try and observe and memorize as many details as you can

End 3162016 copycgrahamphysicscom 2016

In the picturehellip

1 Is the scientist wearing a jacket or just a waist coat

2 Does the scientist have short hair or long hair

3 The scientist was holding something What was he holding and in what hand

4 Which famous scientist is this and what was he doing

Jacket and Waist coat

Long hair

Prism in right hand

Newton discovered the dispersion Of light

3162016 copycgrahamphysicscom 2016

Would this have been easier

3162016 copycgrahamphysicscom 2016

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 4: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

Not in Physics ndash we are talking about light

3162016 copycgrahamphysicscom 2016

Red Orange Yellow Green Blue Violet

Mixing all these colors together we get what color

3162016 copycgrahamphysicscom 2016

Primary colors in Physics are

Blue Red

Green

3162016 copycgrahamphysicscom 2016

Are you smart

Say the color not the word

3162016

red blue

white

yellow

black

orange

pink

green

copycgrahamphysicscom 2016

Why are there primary colours

The Wonderful World Of Colour - YouTube [360p]mp4

3162016 copycgrahamphysicscom 2016

Aim To explain why some objects have colors Recall the primary colours Recall the outcome of mixing colors Key words Absorption ndash Filter ndash Transmit ndash Primary colors - Secondary colors -

3162016 copycgrahamphysicscom 2016

You are about to see an artists impression of a famous moment in sciencehellip

You will have 20 seconds to look at the picture

Try and observe and memorize as many details as you can

End 3162016 copycgrahamphysicscom 2016

In the picturehellip

1 Is the scientist wearing a jacket or just a waist coat

2 Does the scientist have short hair or long hair

3 The scientist was holding something What was he holding and in what hand

4 Which famous scientist is this and what was he doing

Jacket and Waist coat

Long hair

Prism in right hand

Newton discovered the dispersion Of light

3162016 copycgrahamphysicscom 2016

Would this have been easier

3162016 copycgrahamphysicscom 2016

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 5: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

Red Orange Yellow Green Blue Violet

Mixing all these colors together we get what color

3162016 copycgrahamphysicscom 2016

Primary colors in Physics are

Blue Red

Green

3162016 copycgrahamphysicscom 2016

Are you smart

Say the color not the word

3162016

red blue

white

yellow

black

orange

pink

green

copycgrahamphysicscom 2016

Why are there primary colours

The Wonderful World Of Colour - YouTube [360p]mp4

3162016 copycgrahamphysicscom 2016

Aim To explain why some objects have colors Recall the primary colours Recall the outcome of mixing colors Key words Absorption ndash Filter ndash Transmit ndash Primary colors - Secondary colors -

3162016 copycgrahamphysicscom 2016

You are about to see an artists impression of a famous moment in sciencehellip

You will have 20 seconds to look at the picture

Try and observe and memorize as many details as you can

End 3162016 copycgrahamphysicscom 2016

In the picturehellip

1 Is the scientist wearing a jacket or just a waist coat

2 Does the scientist have short hair or long hair

3 The scientist was holding something What was he holding and in what hand

4 Which famous scientist is this and what was he doing

Jacket and Waist coat

Long hair

Prism in right hand

Newton discovered the dispersion Of light

3162016 copycgrahamphysicscom 2016

Would this have been easier

3162016 copycgrahamphysicscom 2016

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 6: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

Primary colors in Physics are

Blue Red

Green

3162016 copycgrahamphysicscom 2016

Are you smart

Say the color not the word

3162016

red blue

white

yellow

black

orange

pink

green

copycgrahamphysicscom 2016

Why are there primary colours

The Wonderful World Of Colour - YouTube [360p]mp4

3162016 copycgrahamphysicscom 2016

Aim To explain why some objects have colors Recall the primary colours Recall the outcome of mixing colors Key words Absorption ndash Filter ndash Transmit ndash Primary colors - Secondary colors -

3162016 copycgrahamphysicscom 2016

You are about to see an artists impression of a famous moment in sciencehellip

You will have 20 seconds to look at the picture

Try and observe and memorize as many details as you can

End 3162016 copycgrahamphysicscom 2016

In the picturehellip

1 Is the scientist wearing a jacket or just a waist coat

2 Does the scientist have short hair or long hair

3 The scientist was holding something What was he holding and in what hand

4 Which famous scientist is this and what was he doing

Jacket and Waist coat

Long hair

Prism in right hand

Newton discovered the dispersion Of light

3162016 copycgrahamphysicscom 2016

Would this have been easier

3162016 copycgrahamphysicscom 2016

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 7: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

Are you smart

Say the color not the word

3162016

red blue

white

yellow

black

orange

pink

green

copycgrahamphysicscom 2016

Why are there primary colours

The Wonderful World Of Colour - YouTube [360p]mp4

3162016 copycgrahamphysicscom 2016

Aim To explain why some objects have colors Recall the primary colours Recall the outcome of mixing colors Key words Absorption ndash Filter ndash Transmit ndash Primary colors - Secondary colors -

3162016 copycgrahamphysicscom 2016

You are about to see an artists impression of a famous moment in sciencehellip

You will have 20 seconds to look at the picture

Try and observe and memorize as many details as you can

End 3162016 copycgrahamphysicscom 2016

In the picturehellip

1 Is the scientist wearing a jacket or just a waist coat

2 Does the scientist have short hair or long hair

3 The scientist was holding something What was he holding and in what hand

4 Which famous scientist is this and what was he doing

Jacket and Waist coat

Long hair

Prism in right hand

Newton discovered the dispersion Of light

3162016 copycgrahamphysicscom 2016

Would this have been easier

3162016 copycgrahamphysicscom 2016

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 8: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

Why are there primary colours

The Wonderful World Of Colour - YouTube [360p]mp4

3162016 copycgrahamphysicscom 2016

Aim To explain why some objects have colors Recall the primary colours Recall the outcome of mixing colors Key words Absorption ndash Filter ndash Transmit ndash Primary colors - Secondary colors -

3162016 copycgrahamphysicscom 2016

You are about to see an artists impression of a famous moment in sciencehellip

You will have 20 seconds to look at the picture

Try and observe and memorize as many details as you can

End 3162016 copycgrahamphysicscom 2016

In the picturehellip

1 Is the scientist wearing a jacket or just a waist coat

2 Does the scientist have short hair or long hair

3 The scientist was holding something What was he holding and in what hand

4 Which famous scientist is this and what was he doing

Jacket and Waist coat

Long hair

Prism in right hand

Newton discovered the dispersion Of light

3162016 copycgrahamphysicscom 2016

Would this have been easier

3162016 copycgrahamphysicscom 2016

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 9: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

Aim To explain why some objects have colors Recall the primary colours Recall the outcome of mixing colors Key words Absorption ndash Filter ndash Transmit ndash Primary colors - Secondary colors -

3162016 copycgrahamphysicscom 2016

You are about to see an artists impression of a famous moment in sciencehellip

You will have 20 seconds to look at the picture

Try and observe and memorize as many details as you can

End 3162016 copycgrahamphysicscom 2016

In the picturehellip

1 Is the scientist wearing a jacket or just a waist coat

2 Does the scientist have short hair or long hair

3 The scientist was holding something What was he holding and in what hand

4 Which famous scientist is this and what was he doing

Jacket and Waist coat

Long hair

Prism in right hand

Newton discovered the dispersion Of light

3162016 copycgrahamphysicscom 2016

Would this have been easier

3162016 copycgrahamphysicscom 2016

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 10: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

You are about to see an artists impression of a famous moment in sciencehellip

You will have 20 seconds to look at the picture

Try and observe and memorize as many details as you can

End 3162016 copycgrahamphysicscom 2016

In the picturehellip

1 Is the scientist wearing a jacket or just a waist coat

2 Does the scientist have short hair or long hair

3 The scientist was holding something What was he holding and in what hand

4 Which famous scientist is this and what was he doing

Jacket and Waist coat

Long hair

Prism in right hand

Newton discovered the dispersion Of light

3162016 copycgrahamphysicscom 2016

Would this have been easier

3162016 copycgrahamphysicscom 2016

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 11: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

In the picturehellip

1 Is the scientist wearing a jacket or just a waist coat

2 Does the scientist have short hair or long hair

3 The scientist was holding something What was he holding and in what hand

4 Which famous scientist is this and what was he doing

Jacket and Waist coat

Long hair

Prism in right hand

Newton discovered the dispersion Of light

3162016 copycgrahamphysicscom 2016

Would this have been easier

3162016 copycgrahamphysicscom 2016

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 12: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

Would this have been easier

3162016 copycgrahamphysicscom 2016

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 13: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

How would our world change

Discuss what would happen to the way we live if we couldnt see in color

What things would be affected

Would it a positive change

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 14: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

3162016 copycgrahamphysicscom 2016

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 15: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

Mixing coloured light

3162016 copycgrahamphysicscom 2016

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 16: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

3162016

cyan

yellow magenta

copycgrahamphysicscom 2016

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 17: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

Whatrsquos so special about red green and blue

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 18: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

3162016 copycgrahamphysicscom 2016

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 19: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

On the back of the retina are rods and cones

3162016 copycgrahamphysicscom 2016

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 20: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

Cones Responsible for color vision

Pigments of cones are of three types blue green and red 3162016 copycgrahamphysicscom 2016

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 21: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

After image

To see an after-image one need only look intently at any object for a short time then direct the eyes at a blank surface like a wall

Every color has an opposite and although individuals perceptions do vary the range of after images seen is consistent

Look at the center dot for 20 seconds

3162016 copycgrahamphysicscom 2016

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 22: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

End 3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 23: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

3162016 copycgrahamphysicscom 2016

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 24: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

How does it work

Cyan is made up of and light When you

stare at the part of the image the blue and green light

sensitive cells become desensitized After this when you look at the

white screen the all the colours fall on your retina however only the

cells are stimulated because the and cells

are still inactive Your brain only sees where the was

Now explain why yellow forms a blue after Imagehellip

green blue

red green blue

red cyan

center

Yellow rods are desensitized which means green and red rod are not stimulated as yellow is a mix of red and green Only blue rods are stimulated 3162016 copycgrahamphysicscom 2016

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 25: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

1 American flag

2 Korean flag

3 A pink heart

Now try and work our what colours you would need to create an after image of

4 The yellow sun

5 Green leaf

6 Blue-green ocean blue sky

and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

3162016 copycgrahamphysicscom 2016

Page 26: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

3162016 copycgrahamphysicscom 2016

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Quick questions

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Page 27: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 28: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 29: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 30: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 31: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 32: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 33: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 34: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 35: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 36: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Are there any undiscovered colors

Do we all see red the same way Can we ever know

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Page 37: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 38: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 39: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 40: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 41: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 42: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

3162016 copycgrahamphysicscom 2016

Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Page 44: Making colored light PRIMARY COLORS - WordPress.com · Primary colors in Physics are Blue Red Green ... for color vision ... 6. Blue-green ocean, blue sky and yellow sand

Quick questions

What are the 3 primary colors (3 marks)

What are the three secondary colors What two primary colors is each made from (6 marks)

If you wanted to make a green after image what color would you use in the real image (1 mark)

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Discusshellip

Are there any undiscovered colors

Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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Discusshellip

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Do we all see red the same way Can we ever know

Could the concept of red be fully explained to a person born blind

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