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Galileo Galileo’s Amazing Discoveries  What did he see?  What explanations did he create?  How were these theories tested?  How did he share the information?

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Presentation on theme: "Galileo Galileo’s Amazing Discoveries  What did he see?  What explanations did he create?  How were these theories tested?  How did he share the information?"— Presentation transcript:

1 Galileo Galileo’s Amazing Discoveries  What did he see?  What explanations did he create?  How were these theories tested?  How did he share the information?

2 Galileo Galileo’s Observations Moon’s Surface Moon’s Surface

3 Galileo The Moon’s Rough Surface Craters & Mountains Craters & Mountains Counter to Aristotelean idea (& Catholic Church) that "heavens" were perfect… Counter to Aristotelean idea (& Catholic Church) that "heavens" were perfect…

4 Galileo Sunspots More proof heavens weren't perfect. More proof heavens weren't perfect. Systematic observations of the motion of the sunspots that indicated the Sun was rotating on its axis. Systematic observations of the motion of the sunspots that indicated the Sun was rotating on its axis.

5 Galileo Moons Orbiting Jupiter

6 Galileo Moons Orbiting Jupiter Jupiter's moons clearly did NOT orbit the Earth, as the geocentric model required Jupiter's moons clearly did NOT orbit the Earth, as the geocentric model required Jupiter could hold onto its moons while it clearly moved across the sky, so the Earth could also do the same with its Moon. Jupiter could hold onto its moons while it clearly moved across the sky, so the Earth could also do the same with its Moon.

7 Galileo Stars in the Milky Way millions of stars in the Milky Way millions of stars in the Milky Way Fuzzy white Milky Way had millions and millions of stars Fuzzy white Milky Way had millions and millions of stars

8 Galileo Saturn’s Bulge Non-uniform shape of Saturn = the heavens weren't perfect. Non-uniform shape of Saturn = the heavens weren't perfect. Saturn was NOT round, and the "bulges" of the rings were proof that the planets weren’t simple spheres moving in the sky. Saturn was NOT round, and the "bulges" of the rings were proof that the planets weren’t simple spheres moving in the sky.

9 Galileo Venus’ Phases Changing sizes & phases of Venus. Changing sizes & phases of Venus. Seeing BOTH prove it had to be orbiting the Sun, and not Earth. Seeing BOTH prove it had to be orbiting the Sun, and not Earth. If Venus orbited the Sun, then it didn't orbit Earth, and the Geocentric model was wrong. If Venus orbited the Sun, then it didn't orbit Earth, and the Geocentric model was wrong.

10 Galileo Venus’ Phases

11 Galileo The Process of Science Observation Observation Description of Experiments Description of Experiments Encouragement for others to repeat Encouragement for others to repeat Sharing Hypotheses Sharing Hypotheses Publishing for Others to Read Publishing for Others to Read Revising explanations Revising explanations


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