- Science and Enlightenment
Scientific Revolution: 16th and 17th century -- must come first
Enlightenment: 17th and 18th centuries -- starts in Western Europe and spreads east -- eventually reaches autocratic Russia late in the 18th century under Catherine the Great
- The Reconception of the Universe
- The Ptolemaic universe: A motionless earth surrounded by 9 spheres -- grasped by the Church to explain how God created the world -- human beings only ones out here -- fundamental to Christian teaching
- The Copernican universe
- Copernicus published On the Revolutions of the Heavenly Spheres, 1543
- The sun stood at the center of the universe
- New theory was also a challenge to cherished religious beliefs
- The Scientific Revolution
- Galileo Galilei
- Kepler (1571-1630): Demonstrated planetary orbits to be elliptical
- Galileo used a telescope, saw spots on the sun, four moons of Jupiter
- Galileo's theory of velocity of falling bodies anticipated the modern law of inertia
- Isaac Newton (1642-1727)
- Published Mathematical Principles of Natural Philosophy in 1686
- Offered mathematical explanations of laws that govern movements of bodies
- Newton's work symbolized the scientific revolution--direct observation and mathematical reasoning
(Scientific Revolution: Results must be repeatable using Francis Bacon's SCIENTIFIC METHOD)
What does it really mean? A shift from God to man -- observations now important
Problem: if man is now at the center of the universe, and all things are knowable, what does this say regarding divine right of kings?
- The Enlightenment
- Science and society
- Enlightenment thinkers sought to discover natural laws that governed human society in the same way that Newton's laws governed the universe
- John Locke: All human knowledge comes from sense perceptions
- David Hume -- I look around the world and everything I observe is complicated. Something complicated must have created everything, but if God is complicated, who created him? If God is simple, he could not have created everything complicated.
- Adam Smith: Laws of supply and demand determine price (laissez-faire economics)
- Rousseau -- despised by most philosophes