Tag: astronomy
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The Dogon and Sirius B: A Star Nobody Should Have Seen
A farming people in Mali, no telescopes, describing an invisible star with a fifty-year orbit and impossible density. Griaule recorded it. Van Beek could…
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The Antikythera Mechanism: A Computer From 100 BC
Thirty surviving bronze gears that predicted eclipses, tracked four calendar cycles and modelled the moon’s variable speed. Nothing comparable appears again for 1,400 years.