On 7 January 1610 Galileo observed with his telescope what he described at the time as "three fixed stars, totally invisible
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Galileo Galilei - Wikipedia, the free encyclopedia - 0 views
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he did make the telescope better. he looked up at the moons of Jupiter for days.
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he was also was the first one to make a map of the moon. he drew it with good detail
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Heliocentrism - Wikipedia, the free encyclopedia - 0 views
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many people disagreed with him when he said that the sun in in the middle of the universe and earth goes around the sun
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Leaning Tower of Pisa - Wikipedia, the free encyclopedia - 0 views
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Galileo tested gravity on that to see which object will hit the floor first. they both hit the floor first. but that was when the Tower was straight.
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