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  1. 1. Galileo Galilei, Tyler 15, 1564 Keane Lived Feb And died Jan 8, 1642
  2. 2. Galileo’s Moons The four moons were discovered sometime between 1609 and 1610 when Galileo made improvements to his telescope, which enabled him to observe celestial bodies more libertadderelig distinctly than had ever been possible before
  3. 3. Telescopes It was during his apprentice period that Galileo worked out much of his mechanics and began his work with the telescope He had showed the importance of the telescope as a tool for astronomers by proving that news.nationalgeogr there were objects in space and by doing so it had shown the astronomers the fact
  4. 4. Leaving the Nest In 1612 Galileo published a Discourse on Floating Bodies, and in 1613, Letters on the Sunspots. In this latter work he first expressed his position in favor of Copernicus. In 1614 both his daughters entered the Franciscan convent of Saint Mathew, near Florence. Virginia became Sister Maria Celeste and Livia,
  5. 5. Mathematics Galileo's father was hardly overjoyed about this turn of events Galileo started tutoring students in mathematics and he did some experimenting with floating objects, developing a balance that could tell him that a piece of something
  6. 6. Dante's Inferno The Academy of Florence had been arguing over a 100-yearold controversy: What were the location, shape, and dimensions of Dante's Inferno? Galileo Galilei wanted to seriously answer the question from the point of view of a scientist
  7. 7. The Leaning Tower of Pisa At the time that Galileo arrived at the University, some debate had started up on one of Aristotle's "laws" of nature, that heavier objects fell faster than lighter objects So he proved at the
  8. 8. Galileo’s inventers Some of Galileo’s inventions were created because Galileo needed money to support his family and help provide dowry for his sisters He created a simple thermometer that could register variations in temperature but did not make any money off of it and in 1596, he built a compass used for aiming cannonballs It was also adapted for civilian use in land surveying
  9. 9. Necessity is the Mother of Invention Galileo Galilei moved on to the University of Padua and by 1593 he was desperate in need of additional cash His father had died, so Galileo was the head of his family, and personally responsible for his family Debts were pressing down on him, most notably, the dowry for one of his sisters, which was paid in
  10. 10. Galileo Galilei’s Death 8 January 1642 at the age of 77 Galileo died in Grand Duchy of Tuscany, Italy Wikipedia, the free encycloped