Date post: | 25-Dec-2015 |
Category: |
Documents |
Upload: | ada-armstrong |
View: | 285 times |
Download: | 0 times |
Who is came up with the Heliocentric Theory?
Who proved the Heliocentric theory to be true but later recanted his statement?
Bell Ringer
Scientific Method and Scientific Thinkers Reading: Age of Enlightenment The eight Enlightened thinkers Class Activity
Agenda
Logical procedure for gathering and testing
ideas. Begins with a problem or question arising from
an observation. Next a hypothesis is formed. Next hypothesis is tested. Analyze and interpret the data – confirms or
disproves theory.
Scientific Method:
How do we use the scientific method in our
everyday life without even realizing it?
Scientific Method
English Politician and writer. Attacked medieval scholars for relying on
Aristotle and ancient thinkers. Urged scientist to experiment and observe the
world around them and then draw conclusions. Idea known as Empiricism or Experimental
Method.
Francis Bacon
Analytical Geometry – linked algebra and
geometry. People needed to reject old ideas Everything should be doubted until proved by
reason. “I think therefore I am” General laws can be expressed
mathematically.
Rene Descartes
What law did he form? Law of Universal Gravitation: - Every object in the universe attracts every other
object. Degree of attraction depends on the mass of the objects and the distance between them.
1687 Mathematical Principles of Natural Philosophy – one of the most important scientific books ever written.
Invented Calculus and many of his theories are still used today.
Isaac Newton
Zacharias Janssen – (Dutch) First Microscope in
1590. - 1670 Anton Van Leeuwehoek used it to
discover bacteria.
Evangelista Torricelli- First Mercury barometer in 1643.
- Tool used for measuring atmospheric pressure and predicting weather.
Scientist develop new instruments
Gabriel Fahrenheit- (Dutch) First thermometer
using mercury in 1714. - showed water freezing at 32 degrees.
Anders Celsius –(Swedish) Created another scale, showing freezing at 0 degrees.
Scientist develop new instruments
Middle ages: Galen dissected pigs and assumed human
bodies were much of the same.
Andreas Vesalius – dissected human corpses and published his observations.
On the Fabric of the Human Body (1543) Detailed drawings of human organs, bones,
and muscle.
Medicine and Human Body
William Harvey: English Doctor On the Motion of the Heart and Blood in
Animals – 1628 Showed Heart acted as a pump to circulate
blood. Described the function of blood vessels.
Medicine and Human Body
Edward Jenner introduced a small pox vaccine
in 1700s. Used cow pox to inoculate people which was a
milder disease.
Medicine and Human Body
Robert Boyle – founder of modern chemistry. The Sceptical Chymist 1661. Challenged Aristotle’s idea that the physical
world consisted of four elements – earth, air, fire, and water.
Boyle’s law – explains how the volume, temperature, and pressure of gas affect each other.
Discoveries in Chemistry