Beginning of Essay
Galileo Galilei was one of the most remarkable scientists ever. He discovered many new ideas and theories and introduced them to mankind. Galileo helped society as an Italian astronomer and physicist, but how did he come to be such a great and well-known scient ....

Middle of Essay
.... He spent a lot of the four years studying the scientific thoughts and philosophies of Aristotle. He also invented an instrument that could find the gravity of objects. This instrument, called a hydrostatic balance, was used by weighing the objects in water. Galileo returned to Pisa in 1589 and became a professor in math. He taught courses in astronomy at the University of Pisa, based on Ptolemy's theory that the sun and all of the planets move around the earth. Teaching these courses, he became more understanding of astronomy. In 1592, the University of Padua gave him a professorship in math. He stayed at that school for eighteen years. He ....