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Ptolemy believed that the heavenly bodies' circular motions were caused by their being attached to unseen revolving solid spheres
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is the seminal work on the heliocentric theory of the astronomer Nicolaus Copernicus
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He was the person that discovered or looked closer into human body's
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According to the traditional account, to refute the Aristotelian notion that heavier objects fall faster than light ones, Galileo performed an experiment from the top of the leaning tower of Pisa.
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Francis Bacon's The Advancement of Learning is considered the first major philosophical book written in English
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He discovered the 3 laws of motion
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Van Leeuwenhoek discovered protozoa the single-celled organisms and he called them "animalcules".