Galileo Galilei
Born in Pisa, Galileo (1564-1642) initially trained as a doctor. On hearing of the invention of the telescope in 1609, he built his own and turned it to the heavens, revealing the existence of sunspots and a pitted, mountainous surface on the moon: the heavens were not incorruptible. His studies also provided support for the idea that the Earth revolves round the sun. This got Galileo into considerable trouble with the Catholic church and he was forced to abandon that backing in 1633. His work on falling bodies also laid the groundwork for Newton’s subsequent theories.
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