1. 13.5 Scientific Revolution

2. Objectives
Explain how new discoveries in astronomy changed the way people viewed the universe.
Analyze the contributions that Newton and other scientists made to the Scientific Revolution.

3. The Old Way Stuck in the past (Greeks and Church)
Ptolemy’s geocentric theory
How did they come up with this idea?

4. Scientific Revolution
Began Mid-1500’s
Causes:
necessity
rebirth in learning during Renaissance
Challenging older ways and ancient ideas

5. Heliocentric Theory
Copernicus (1543) On the Revolutions of the Heavenly Spheres.
Proposed heliocentric theory
Backlash
Tycho Brahe’s observatory
Johannes Kepler, used Brahe’s observations, supported with mathematical data (ellipse)

7. Galileo Started by discounting Aristotle/Ptolemy 1610
Assembled telescope, observed Jupiter’s moons revolve around the planet.
Supported Copernicus and called to Rome in front of Inquisition
“And yet it moves.”
Outcome?
Ideas stuck

8. Scientific Method Problem=hypothesis=data=conclusion
Bacon moved away from reliance on ancients, stressed experimentation and observation
Descartes “I think therefore I am”
Discourse on Method (1637)
Everything within human reason

9. Scientific Revolution
Scientific Method needed new materials
Perfected Microscope by Leeuwenhoek(1590)
Fahrenheit and Celsius
Dissection of bodies
On the Structure of the Human Body
Vesalius, first accurate and detailed study of human anatomy
Harvey, circulation of blood and the heart
Inoculations

10. Newton One set of universal gravitation.
Natural laws dominated earth/humanity.
Can be measured and described mathematically
Gravity
Philsophie Naturalis Principia Mathematica