Pennies Copper in your pocket Click space bar for effects and turn up sound
Transcript
Slide 1
Slide 2
Click space bar for effects and turn up sound
Slide 3
Open your wallet
Slide 4
Big bucks in Winnipeg
Slide 5
Stampeding coins Pennies begin their life as a roll of core
steel fed into a punch press that churns out blank coins After
plating, the blanks are dried, polished and inspected before
proceeding to the coining press where they are stamped Blanks are
next electro- plated with mixture of nickel and copper These blanks
are refined by removing rough edges
Slide 6
(plus a few)
Slide 7
Copper in currency : it goes back a few years
Slide 8
Its elementary, my dear
Slide 9
And where in the world do we find copper? ( map of world wide
copper production 2005)