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Made a map of the world and figured out the size of the Earth.
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Devised the geocentric view.
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Gas clouds of hydrogen and helium ignited as stars.
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The Big Bang is used to explain the way the Universe began.
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Credited for developing the scientific method.
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Discovered the major laws of planetary motion.
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Cartesian skepticism named after him. He doubted everything.
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He believed that the most reliable source of knowledge comes from one's senses.
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Discovers the three laws of motion.
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He devises the Periodic Table of Elements.
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She discovers the elements polonium and radium.
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Discovers relationship between period and luminosity in Cepheid variables.
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He believed in pangea and how the continents were once one large landmass that seperated.
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Discovers the Universe is larger than once thought before.
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