Bellringer Turn in Ch. 8 Vocab in the back tray. Start a new section of notes called Ch. 8: The Enlightenment and Revolutions. Call today’s notes: Scientific Revolution 1 Notes Answer the following question: How do we know the sun is the center of the solar system?

It Matters Because…

Causes of the Scientific Revolution Renaissance humanists learned to read Greek as well as Latin – found out that not everyone agreed with Aristotle… Technical problems required observation and measurement Invention of new instruments (ex. telescope, microscope) Printing press Idea that math was key to understanding the everything

The Ptolemaic System

Copernicus & Kepler Nicolaus Copernicus proposed Heliocentric (or sun-centered) model in 1543 Johannes Kepler confirmed that the sun was at the center with laws of planetary motion Elliptical, not circular, orbits around the sun

Galileo Galilei First European to use telescope regularly Discovered planets are matter, not just orbs of light The Starry Messenger in 1610, made people aware of the new universe theory Accused of heresy by the Church and put under house arrest for the remainder of his life

Isaac Newton Considered the greatest genius of the Scientific Revolution Laws of motion – gravity Mathematically explained all motion in the universe New picture of the universe: one huge, regulated, uniform machine that worked according to natural laws

Review! 1. What were the causes of the Scientific Revolution? 2. Compare and contrast the geocentric & heliocentric models of the universe. 3. What is Galileo’s major contribution? 4. What is Newton’s major contribution? 5. How do you think these new understandings might change the way people looked at the world?

Homework Read Ch. 8, Lesson 1 if you haven’t already!