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Galileo Galilei

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Maria Aroca

on 2 October 2012

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Transcript of Galileo Galilei

16 years later, when one of his most important books was published ("Dialogue on the Two Great Systems of the World.") , and the character Simplicio who wa against the Copernican system was the representation of the pope, he had to accept he was wrong by supporting the Copernican system, and was sentenced to house arrest Greatly influential astronomer, mathematician, and philosopher GALILEO GALILEI PENDULUM: Galileo Galilei described the laws of the pendulum when he discovered this phenomenon thanks to a lamp that was ranging in Pisa Cathedral. (1581) Inventions and works THERMOMETER/ THERMOSCOPE: It was the first thermometer ever created with which temperature was measured. HYDROSTATIC BALANCE: Its operation is based on Archimedes' principle and is especially designed for the density determination of solids and liquids. (1586) LAWS OF THE MOVEMENT SUBJECTED TO GRAVITY: He made important advancements in physics, that would later be recognized by Einstein, being the most important, the fact that all bodies accelerate at the same speed regardless of their size or mass ( gravity) • TELESCOPE: he designed and constructed his own version of the telescope with which he made great discoveries in astronomy.(1609) COMPASS: A two arms instrument with several different scales that graduate it that allowed him to make mathematical and arithmetic calculations. ASTRONOMY: He discovered the sunspots, the lunar valleys and mountains, the four largest satellites of Jupiter, the phases of Venus and the fact that the earth rotates around the sun. WRITTEN WORKS • Le operazioni del compasso geometrico e militare (1606):Work in which he exposes the theory of proportion measurements that he had just formulated. Discorso entorno alle cose che stanno in su l'aqua et che in quena si muovono, in which he exposes, accordin to Arquimedes´principles, the balance of floating bodies. • Sidereus nuncios, magna longeque admirabilia spectacula prodens, etc. (1610), It talks about the universe's generalities • Altissimum planetam tergeminum observavi.Almost immediately after the publication of this book Galileo discovered the phases of Venus; established that the planets do not receive their light but the sun. • Storia e dimostrazione intorno alle macchie solari et loro accidenti, del signor Galileo Galilei. Galileo exposed his observations of the blotches on the Sun, and he complained bitterly of the Dutch Jesuit Scheiner, that with the name of Apelles had made his, the discovery. • Il saggiatore nel quale con bilancia esquisita e giusta si ponderano le cose contenute nella libra astronomica e filosofica di Lotario Sarsi, etc. (1623). • Discorsi e dimostrazioni matematiche entorno a due scienze alttenenti alla mecanice ed i movimenti locali (1636). He exposes his discoveries that would later lead to modern mechanics. • Dloghi quatro, sopra i due massimi sistema del mondo, Ptolomaico et Copernicanum. ¨Dialogue Concerning the Two Chief World Systems, Ptolemaic and Copernican¨, 1632. • II Saggiatore ¨The tester¨, 1623 • Discorsi ¨Speeches or dialogue¨, 1630 Galileo's greatest contribution was in how scientists approach science. The Scientific Method He directed scientists through observations and experimentation. He took science away from God and theology. Galileo believed that a scientist should explain phenomena in a mathematical way and do experiments to prove it. A scientist should use mathematics in order to do a prediction and create experimentation for confirming his theory. Galileo knew the importance of variables and believed that a scientist, while doing an experiment, should eliminate as many factors as possible. The church publicly cleared Galileo of any wrong doing in 1992. Who was Galileo Galilei? Born in Pisa, Italy in February 15,1564. He studied medicine at the university of Pisa although he originally wished to become a monk. Being bored at the university, with the only exception of mathematics, he was in risk of flanking out. He later switched to philosophy and mathematics due to his father's hopes of him getting a degree, and although he didn't get any , he taugh the latter privately and ironically, in the university that didn't grant him a degree. At age 20 he established the law of the pendulum He established the size of Dante's inferno and Lucifer himself (2000 arm-lenght long) He proved wrong one of Aristotle's laws of motion. Out of necessity, he made new inventions that helped him support his siblings, his wife and his three children He heard rumors that a Dutch spectacle-maker had created a device that made objects that were far away to seem at hand , and he decided to make his own 'spyglass' resulting in a 10-power telescope that he presented in Venice and dramatically increased his wage. Galileo was accused of heresy charges and was warned not to preach the Copernican system.
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