Galileo's Many Inventions Helped Redefine Our Place In The Universe

Galileo is considered one of the greatest astronomers of all time. His discovery of Jupiter’s major moons (Io, Europa, Ganymede and Callisto) revolutionized astronomy and helped speed the acceptance of the Copernican Model of the universe. However, Galileo is also known for the numerous scientific inventions he made… » 6/30/15 11:20am Yesterday 11:20am