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Who: Galileo Galilei
What: Studied the planets
When: 1609
Where: Italian
Why: He created a telescope to study the planets
Importance: Discovered that Jupiter had 4 moonsIo, Europa, Ganymede, Callisto.The sun had spots on its surface

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Who: Isaac Newton
What: The laws of Gravity
When: 1687
Where: England
Why: Showed the same force of motion
How: Discovered gravity when he saw a apple fall from a tree and identified it as gravity

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Who: Francis Bacon
What: Helped create a wa of knowledge
When: 1600's
Where: France
Why; He thinks scientist should think on what they observe and test

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Who: Nicolas Copernicus
What: Made a Heliocentric Theory
When: Around the 1500's
Where: Poland
Why: Said that the sun was the center of the universe and that all planets like Earth revolved around the Sun in an orbit
Importance: This theory was against the geocentric theory, saying that the earth was the center of the universe when it wasn't.

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Who: Kepler, Galileo Galilei, Copernicus
What: Acquiring new knowledge or correcting previous knowledge
Where: France and England
When: Around Mid 1500's and Mid 1600's
Why: A method of experiments used to make observations and answer questions