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Summary

• What do we observe in the sky?
• FSun, Moon, Stars, Planets
• Ancient Observations - which are still useful!
• Ancient Cosmologies - facts or invention?
• Are the earth and moon spherical? Proposal and obervation
• How the size of the earth, moon and sun and distances to the moon and sun wre measured in ancient Greece
Demonstrations
• Is there evidience for or against the earth at the center?
• How did the planets lead to a revolution in science
• Coperniucus proposal
• Brahe measurements proposal
• Kepler puts it together
• Galileo and the telescope
• Consequence for our world view
• Next Time: Newton laws
• Read for Next Time: March 3