A lot, very little of which is worth mentioning.
See a historian about 16 century Italy for full details about what he might have been up to.
What is worth mentioning is his pioneering (though not actually inventing) the telescope.
He is also known for his theory about astronomy: the heliocentric model (that the sun is at the center of the solar-system, not the earth). At the time the theory was discredited, but is has been proven to be (mostly) accurate.
He has also done a lot for other scientific fields, but is less famous for those.
he invented the telescope
the scientific revolution
one trait of Galileo Galilei was that he was determined in everything he does.
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.
Galileo used more advanced technology to find stronger observational evidence than Copernicus was ever able to provide.
Galileo used more advanced technology to find stronger observational evidence than Copernicus was ever able to provide.
scientific revolution
Galileo Galilei was instrumental in the refinement of the telescope. Galileo, who was from Italy, was a significant contributor to the scientific revolution.
the scientific revolution
one trait of Galileo Galilei was that he was determined in everything he does.
Galileo Galilei
Both scientists challenged ideas supported by the Roman Catholic Church.
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.
he is very determined in his workhkh
Galileo used more advanced technology to find stronger observational evidence than Copernicus was ever able to provide.
Galileo used more advanced technology to find stronger observational evidence than Copernicus was ever able to provide.
Galileo galilei
Galileo's full name was Galileo di Vincenzo Bonaiuti de' Galilei.