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Temple of Poseidon, Sounion. Gateway, Citadel of Mycenae. Parthenon, Athens. Reconstruction of Acropolis, Athens. Lions of Delos. The School of Athens (Raphael). Hipparchos, ca 150 BC. Universe of Nested Spheres. Traditional “ Projective ” Cosmology (Indian). Ptolemy (ca. 130 AD).
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Antikythera Mechanism • Greek, ca. 100 BC. Recovered from shipwreck. • First known geared mechanism. • Over 30 metal gears in clockwork • But not a clock: simulates astronomical motions of Sun, Moon, planets(?), & predicts eclipses • Includes Hipparchos’ theory of elliptical lunar orbit • Technology not transferred to clockmaking • No comparable technology for 1300 years
Antikythera Mechanism: original & reproduction