“Galileo, a famous Italian astronomer, is known for many things. He discovered the four moons of Jupiter, modified the telescope to be able to see farther distances, designed the first pendulum clock, and had so many theories about the universe.” (http://www.space.com/15589-galileo-galilei.html) Eventhough, Galileo and the church did not agree his theories can be proven true. “Galileo was born in Pisa in 1564. He was a cloth merchant, musician, and member of the minor nobility. He enrolled at the University of Pisa as a medical student, but his interest turned to the field of mathematics.” (http://www.enotes.com/topics/galileo-galilei-62834) “At age 22 Galileo published a book called hydrostatic balance, and his name became known to other
