stay and maintain the family. Then in 1952 he managed to he was offered a job at the University of Padua. There he worked for many years with other scientist teaching and studying as well.
             In 1604 Galileo heard that the rulers of Florence and Venice were becoming interested in a new creation. It was an optical instrument used to observe distant objects. This was an early version of our modern day telescope. Galileo had set out to build one of his own telescope. Then four days later he presented his telescope to the Venice senate, and was given a double in raise and he secured a permanent job.
             Galileo used pendulums extensively in his experiments. Early in his career, he researched the characteristics of their motion. After investigating their behavior, he was able to use them as time measurement devices in later experiments. Pendulums are mentioned in both Galileo's Dialogue Concerning the Two Chief World Systems and his Dialogues Concerning Two New Sciences. In these two works, Galileo discusses some of the major points he discovered about pendulums. Pendulums nearly return to their release heights. All pendulums eventually come to rest with the lighter ones coming to rest faster. The period is independent of the bob weight. He said the square of the period varies directly with the length. So the time the it takes for the pendulum to swing from one side to the other squared varies according to the length of the swing.
             Galileo observed that the bobs of pendulums nearly return to their release height. In his experiment the pendulums were released from different heights. The height the pendulum returned to was noted and compared to the release height. Every time he released the pendulum it returned to the almost the same release height. Galileo noted that each time he swung pendulums the lighter one came to rest faster. As a test of this observation, he dropped two pendulums of the same size but different weight at the same time ...