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galileo galilei and galileo are the same person (that doesn't make sense.)
Galileo Galilei proved that objects in the solar system orbit around the sun, not the earth. He found this out by observing variations in venus's phases that could not be explained if all objects orbited the earth
the theory of how to make a telescope
In the early 17th century
Galileo Galilei
Galileo Galilei
Galileo Galilei made a water thermometer in 1593.
Galileo Galilei was an Italian physicist, mathematician and engineer, who contributed largely to the scientific revolution. He invented a pendulum clock, which was inspired by a swinging chandelier in the Cathedral of Pisa.
by using better stuff people if u don't know
Probably Galileo Galilei (Astronomer and Physicist, 1564 -1642)
He could only make out four of Jupiters' largest moons.
Galileo Galilei . He only helped support the theory through his observations , he didn't invent the model, Copernicus did.