Galileo Galilei
Published on Dec 12, 2015
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PRESENTATION OUTLINE
EARLY LIFE: Born February 15, 1564:
Galileo's father was Vincenzo Galilei, who was a musician and mathematician. Galileo was very good at mathematics right away, but his parents wanted him to go into the medical field. This didn't work out, and he was allowed to pursue being a philosopher. He was the oldest of 7 children and his father came from a noble family. After studying mathematics and physics at the university of Pisa, he became a professor of mathematics. As a child, he observed the swinging lamp in the cathedral of Pisa, and some say this helped him with the making of the astronomical clock he created 50 years later.
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INSPIRATION:
Science overall was his main inspiration. He was a genius with mathematics and science, and this was what he loved to study. He also studied the works of Aristotle. One thing that inspired him was the invention of the spyglass in 1609. Using his skills and knowledge, he created the telescope from the spyglass. This was a huge discover for him because with it he was able to observe the universe. He found the 4 moons of Saturn and studied Venus and the Sun. This inspired him to become an astronomer.
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OTHER INTERESTS:
As already mentioned, Galileo had a passion in mathematics and science...which helped him immensely in astronomy. He also liked to study the works of other famous mathematicians, scientists, and philosophers to help him develop his own theories of space. This will come up in the next slide.
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MAJOR CONTRIBUTION:
One big contribution Galileo had on astronomy was his proof that the heliocentric theory was correct. The theory of a heliocentric universe means that everything centers around the sun, while geocentric implies that the universe centers around the earth. Because of Galileo, we now know that it is heliocentric. Many thought he was crazy because what had been taught was the geocentric. When he proposed that the heliocentric universe as being true, the authorities told him to stop publishing his works on this concept.
Photo by NASA's Marshall Space Flight Center
MAJOR CONTRIBUTION:
Another of Galileo's major discoveries appeared before he discovered the universe was heliocentric. He found that instead of being flat like the old astronomers believed, the moon actually had texture. When he looked at the moon through his telescope, he found that it actually had valleys and hills, sometimes what looked like mountains came into view. This was a major contribution to scientific discovery.
Photo by Werner Kunz
REACTION:
The people's reaction to the moon discovery was a huge deal. Astronomers started looking at the moon and found that what Galileo said was correct. The reaction to the heliocentric theory was a bit different. As stated before, people weren't too happy with what he was saying. The Catholic Church was a main reason for him being called a maniac. The church thought that he was wrong and brought him to the authorities. He was tried and told not to publish this theory again. He kept pushing the theory and eventually went too far...
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OTHER INFO:
A second time he was taken before the authorities and they declared him a heretic. He was sentenced to a lifetime in prison, but he became very ill and was allowed house arrest. He died soon after as a prisoner of England. Years later, people began to study Galileo's theories and found that what he said about the heliocentric universe was probably correct. That is how we know the the universe revolves around the Sun, not the Earth.
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END OF LIFE:
Galileo Galilei died January 6, 1642 never knowing that the discoveries he made and the theories he tried to explain would later in history be found correct. His works helped us find out a lot about our universe, and to him we owe thanks.
Photo by kevin dooley
