1.1M views · 28K reactions | Carl Sagan ; Cosmos "A Curved Earth" ❤☮ #carlsagan #cosmos #science #experiment #earth | Saganism | Facebook
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1.1M views · 28K reactions | Carl Sagan ; Cosmos "A Curved Earth…
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2.3K views · 60 reactions | Carl Sagan shows how Eratosthenes's zest for experiment helped us understand the circumference of the Earth 2200 years ago, an understanding that overthrows the flat-earth conspiracy. Credits: The Cosmos | Scientia | Facebook
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2.3K views · 60 reactions | Carl Sagan shows how Eratosthenes's …
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Carl Sagan Explains How Eratosthenes Knew the Earth Was Curved Over 2,200 Years Ago
Carl Sagan Explains How Eratosthenes Knew the Earth Wa…
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twistedsifter.com
A wonderful clip of humanist and cosmologist, Carl Sagan, on the Greek Polymath, Eratosthenes, and his endeavour to measure the circumference of the Earth. In doing so, Eratosthenes proves the Earth's curvature, over 2200 years ago. | Humanists UK
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A wonderful clip of humanist and cosmologist, Carl Sagan, on the G…
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FacebookHumanists UK
Carl Sagan describes how the ancient Greeks knew that the Earth was round. Aristotle used the round shadow of Earth on the moon during eclipses as evidence, while Eratosthenes measured the Earth’s circumference using the differences in shadow angles at two locations in Egypt. | History In Pictures
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Carl Sagan describes how the ancient Greeks knew that the Eart…
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FacebookHistory In Pictures
Carl Sagan on ancient Greek mathematician Eratosthenes.
Carl Sagan on ancient Greek mathematician Eratosthenes.
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This video shows Carl Sagan explaining Eratosthenes' Experiment, in which he was able to estimate with precision the size of planet Earth about 23 centuries ago. Credit: Cosmos. | Ceres Science
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FacebookCeres Science
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