Lecture12 - Quiz 8: Question: Imagine that you were a loyal...

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1 Quiz 8: • Question: Imagine that you were a loyal adherent of Aristotle. Imagine further that you were confronted with evidence of sunspots (e.g., by someone showing them to you with the help of a telescope). How could you, within the framework of Aristotelian physics, try to explain away those pesky sunspots? • Answer: The imperfections (blemishes) have to reside in the terrestrial (sublunar) realm. Thus, possible arguments could be: (1) The lenses of the telescope are imperfect! (2) Earth ʼ s atmosphere somehow creates the spots along the way from the telescope to the Sun! Of course, none of that is convincing. The History and Philosophy of Astronomy (Lecture 12: Galileo II) Instructor: Volker Bromm The University of Texas at Austin Department of Astronomy Signature Course UGS 303 (Fall 2009) Galileo Galilei: The First Scientist 1564 (Pisa) – 1642 (Arcetri) • founder of modern physics - law of interia - law of free fall • Frst astronomer to use telescope • The “Trial of Galileo” (con±ict with Catholic Church) Galileo: Timeline and Context • between Copernicus and Newton • contemporary of Kepler and Tycho
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2 Court Mathematician in Florence (1610-42) • Florence: capital of Tuscany (Grand Duchy) • high-point of his career The Opposition Rears Its Ugly Head (1612-15) • Dominican friars of San Marco in Florence: - gather evidence against Galileo - denounce him to Roman Inquisition The Roman Inquisition • Founded as Instrument of Counter Reformation (1542) - administered by the Holy Of±ce - allows torture to force confession Index of Forbidden Books Index Librorum Prohibitorum • Organized censorship • Introduced in 1559 • Abolished in 1966
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3 Giordano Bruno: Victim of the Inquisition 1548 (Nola) – 1600 (Rome) • proponent of inFnite universe - inFnitude of Suns/stars - inFnitude of inhabited planets • adherent of Hermetism - occult sect based on alleged ancient Egyptian texts - Hermes Trismegistos • was burned at the stake Giordano Bruno: Victim of the Inquisition • burned at stake on Campo dei ±iori (Rome, 1600)
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This note was uploaded on 12/18/2010 for the course UGS 303 taught by Professor Foster during the Spring '08 term at University of Texas at Austin.

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Lecture12 - Quiz 8: Question: Imagine that you were a loyal...

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