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The geocentric model of Plato could not explain the retrograde motion of the planets.
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Nicolaus Copernicus wrote a heliocentric theory of the astronomer.
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It was a major advance in the history of anatomy over the long-dominant work of Galen, and presented itself as such.
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Galileo had dropped two balls of different masses from the Leaning Tower of Pisa to demonstrate that their time of descent was independent of their mass.
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The Advancement of Learning is considered the first major philosophical book written in English.
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John Kepler's three laws of planetary motion can be stated as All planets move about the Sun in elliptical orbits, having the Sun as one of the foci.
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The cell was first discovered and named by Robert Hooke.
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He also improved the microscope and laid foundation for microbiology.
