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Galileo Galilei (1564-1642)
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Did not invent telescope
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First to point it at the
sky and write about what he saw:
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mountains on the moon
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Dim haze of Milky Way is
actually LOTS of individual stars
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Phases
of Venus, important evidence conclusively
disproving Ptolemaic system
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Moons
orbiting around Jupiter (Galiliean moons)
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Put
under house arrest by Catholic Church for heretical ideas. Recently
pardoned.
Phases
of venus:
What's
really going on:
Ptolemaic
model--Would never see Gibbous phase:
Jupiter
and the Galilean moons seen with a small telescope:
Jupiter's
moons move!
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