Galileo Galilei was a professional musician who has been hailed as a major contributor to modern science. He was born in 1564 in Pisa, Italy and died in 1642. His most noted accomplishments include experiments on strings of instruments, work on free fall, his use of telescope and the discovery of the pendulum. Galileo was sentenced to life imprisonment in 1633 for heresy. This sentence was absolved in 1992 after his works were finally recognized as accurate, and more importantly, valuable.