This film goes through the crucial steps in Galileo's life starting in 1583, when, as a medicine student in Pisa, he grasped the periodical movement of the pendulum while staring at a lamp hanging from the ceiling of the cathedral.
The setting is then moved to Florence, where Galileo was supported by the Medicis for his scientific talent: here he devoted himself to the study of mathematics and of moving bodies and succeeded in developing a method for the determination of the center of gravity in objects.
After moving to Padua in 1592, Galileo taught mathematics, astronomy and mechanics at the university of the Republic of Venice. In the same years when Giordano Bruno was attacked by the Inquisition and sentenced to be burned at the stake, he became a supporter of Copernicus' model as opposed to the ptolemaic one. In 1604, the observation of the nova star discovered by Kepler provided him with the evidence he needed to refute Aristotle's claim that the heavens were unmoveable. By then based in Venice, in 1609 he developed his telescope and submitted it to the Senate of the Republic, where it met with an enthusiastic acceptance due to its strategic potential applications. The well-known observations of the Moon that followed, as well as the discovery of Jupiter's Medicean satellites (published in the Sidereus Nuncius) strenghtened his idea of the universe and were substantiated by Kepler's observations. After Galileo moved to Rome in 1611 and lost the support of the Republic of Venice, his ideas drew the undesirable attention of the Inquisition, which struck again and again until it finally forced him to officially abjure his own theories in 1633 after banning the Dialogue on the Two Chief World Systems, even if it had been officially authorized by the Pope when first published in 1632.
Italian version of the film by the association La Limonaia, Pisa.