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Galileo is born to Vencenzo Galilei, a musician.
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Galileo and his family move to Florence, and he starts to attend the monastery of Vallombrosa
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Galileo enters the University of Pisa to study medicine. The story is that “Galileo was in the cathedral at Vallombrosa when he observed a lamp hanging from the ceiling swaying with perfect rhythm. He was fascinated that the lamp took the same amount of time to swing no matter how large the range of swing. He later would apply his theories of pendulums to clocks.”
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Galileo became fascinated in mathematics and geometry so he starts taking classes from Ostilio Ricci, a teacher in the Tuscan court.
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Galileo didn't complete his degree and is forced to leave the University due to the lack of funds. He returns to Pisa
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Galileo publishes an essay on the Hydrostatic Balance, a device to measure the mass of objects.
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Galileo publishes a paper on the center of gravity in solids, it is because of this that he is awarded a position as lecturer at the University of Pisa.
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Aristotle said that bodies of different weights fall at different rates. Galileo did not believe this.
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Galileo applied and was awarded the chair of mathematics at the University of Padua. Where he stayed until 1610. This is where he did the majority of his work.
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Galileo wrote a letter to Johannes Kepler saying he supported his heliocentric universe theory over Aristotle’s theory. Galileo would have published this, but was afraid of ridicule.
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Galileo published his theories, which is now called the theory of uniform acceleration. In this theory he proved that all bodies, regardless of their weight, fall at an equal rate, when there is no friction. Also in this paper he stated that a ball thrown in the air would follow a parabolic path.
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Galileo heard of the invention of the telescope and made a better
One without even looking at the design of the old one. -
Galileo made many different observations about the solar system, when using his new telescope. He publishes the results he found in the 1610 book, "Sidereus Nuncius." ("The Starry Messenger")
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Galileo left his position at Padua to become the first philosopher and mathematician to the Grand Duke of Tuscany. This was probably because the Duke allowed Galileo more time to work on his projects.
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Galileo visited Rome to demonstrate the telescope.
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After he was so warmly accepted at Rome, Galileo wrote 3 letters to formally take his position on the heliocentric theory of the universe. His main reason for believing Kepler and Copernicus were his observations of sunspots moving around the sun.
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Galileo was accused of heresy for his support of the Copernican
Theory. -
Galileo retired to his home in Bellosguardo near Florence.
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The church forbid him from teaching or advocating these theories.
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Galileo published his great work, Dialogo sopra I due massimi sistemi del mondo, tolemaico e copernicano. In accordance with the Pope, the work was set as a conversation between two men discussing the Ptolemaic and Copernican systems.
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The Pope was infuriated at the content of "Dialogo," so he places Galileo on trial for one thing after another.
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Galileo is placed under house arrest for 8 years until his death.
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Galileo ended up dying from a long illness.
