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Rome, Earth, Astronom, Model, Universe, Center.
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Astronomer, Scientific Revolution, Sun,Solar System , Canaan's law
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Sextant, Supernova, Black Hole, Earth, Sun, Telescope
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Earth, Revolve, Sun, Mathematician, Elliptical, Orbit
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Pisa, Mathematics, Jupiter, weight, moons, excommunicated, telescope
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Newton Laws, motion, telescope, momentum, light, refraction
