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Ptolemy
Six Words: His major contribution was a model -
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Copernicus
Six Words: Nicolas Copernicus was a good mathematician -
Brahe Six Words: Brahe created a very intricate telescope
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Kepler
Six Words: Kepler created the Kepler 62 System -
Galileo
Six Words: Created a telescope, with no model -
Newton
Six Words: Newton created the laws of motion