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8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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The History and Philosophyof Astronomy
(Lecture 26: Epilogue)
Instructor: Volker BrommTA: Jarrett Johnson
The University of Texas at Austin
Astronomy 350L
(Fall 2006)
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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Cosmic Calendar: Human History in Perspective
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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Every culture looks up to the heavens:
China
Mayan
Polynesia
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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History of Astronomy:
From Pre-history to the Modern Age
Every age gets the astronomyit deserves!
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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The Stone Age (~100,000 - 2,000 BC)
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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Dawn of Civilization
Babylon, Egypt: Technology, astrology, calendars
no science yet! Greece (600 BC)
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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Antiquity (1,000 BC - 500 AD)
Raphael (~1510): School of Athens
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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Antiquity (1,000 BC - 500 AD)
Eratosthenes (2nd BC)
Ptolemy (150 AD)
- Intricate model forplanetary motion- Geocentric system
- Earth is
Sphere-Measure
size
Great Library of Alexandria
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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Middle Ages (500 - 1492 AD)
Dante’s Paradise (The Empyrean)
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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Middle Ages/Islam (7th cent. - 1,600)
Preserve and develop classical heritage!
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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Renaissance (1,450 – 1,600 AD)
Copernicus
(1473-1543)
Earth-centered Sun-centered universe
Copernican Revolution: (De Revolutionibus, 1543)
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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The Baroque Period (1600 – 1750 AD)
• The Scientific Revolution!
(Melk Abbey, Lower Austria)
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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The Baroque Period (1600 – 1750 AD)
Kepler (1571-1630)
- Planets move in ellipticaloribits around Sun
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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The Baroque Period (1600 – 1750 AD)
Galileo (1564-1642) Telescopic Discoveries
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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The Baroque Period (1600 – 1750 AD)
Newton (1642-1727)
Law of Universal Gravity
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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The Enlightenment (1750 – 1830 AD)
Sir William Herschel(1738-1822)
Discoverer of Uranus, 1781
Shape of Milky Way Galaxy
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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The Victorian Age (1830 – 1900 AD)
Dynamic interplay between science and technology!
(Crystal Palace, London, Great Exhibition of 1851)
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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The Victorian Age (1830 – 1900 AD)
William Parsons
(1800 – 1867,
3rd Earl of Rosse)
Spiral Nebulae
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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The 20th Century
Towards our modern view of the universe!
(Picasso, Guernica 1937)
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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The 20th Century
Einstein, 1879 - 1955
General Theory of Relativity:
Gravity = curved spacetime
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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Q: Have we made progress?
How to define progress ?
time
p r o g r e s s
Dark AgesAntiquity
Renaissance:Copernicus
Galileo: Use ofTelescope
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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From Home to Immensity:
Journey through Space
An infinite universe, no center, no edge!
F th Bi B t Et it
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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From the Big Bang to Eternity:
Journey through Cosmic Time
A universe of finite age, but with eternity ahead!
time
space
Big Bang
8/9/2019 The History and Philosophy of Astronomy Lecture 26: Epilogue. Presentation
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History of Astronomy:
The Story of Humanity
Auguste Rodin,
The Thinker (1880)
M. C. Escher,Bond of Union (1956)
