Galileo Galilei

• Born February 15,1564

• Died January 8,1642

Years of Life

• Born in Pisa, Italy

• Died in Arcetri

Life

Galileo's most famous invention. His telescope lead to other of his inventions.

The Telescope

Galileo’s calculating compass helped him with math, geometry and astronomy

Calculating Compass

He is responsible for finding the four largest satellites of Jupiter with his telescope

Astronomy

Compared the Copernican System with the Ptolemaic System

Dialogue Concerning the Two Chief World Systems

First to observe the craters on the moon through a telescope and phases.

The Moon

His theory was that two objects will fall at the same speed. So it is said that he went up to the leaning tower of Pisa and dropped two items from the top of the tower.

His Theory

"Biography." The Volume Library. Nashville, TN: Southwestern, 1996. 249b. Print.

"Famous Astronomers: Galileo Galilei." ThinkQuest. Oracle Foundation, n.d. Web. 3 Jan. 2013.

"Galileo Galilei." (Stanford Encyclopedia of Philosophy). N.p., n.d. Web. 3 Jan. 2013.

Works Cited