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Ptolomy thought that the Goecentric model was correct he thought that the planets and fixed stars were embedded in crystalline spheres that revolved arround the Earth.
Fun Fact: He liked to lookin the sky. -
Galileo explained and gave visual evedence that supported the Copernicus theroy. He was the first aastronemer to use a telescope. He also discovered the law of the pendulem.
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He discovered elliptical orbits, which is that the planets and other things rotate in an oval shape.
Fun Fact: He was also the first to explain corectly how humans see. -
He thought that the heliocentric model was true. He thought that that the Earth rotated on it's axis once a day. He also said that the Earth rotateds the sun, and the moon rotates the Earth.
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The Universal Law of Gravoity and Inertia (which he created) explains that Onein a same force pulls objects to Earth and keeps the moon in orbit. Inertia is a property of matter. An objects property of matter. An object's state of motion does not change unless a force acts opon an object.
Fun Fact: He invented cauculus!
