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YouTubeCurious Club TV
Eratosthenes' proved Earth’s curve with a shadow #ancient
Carl Sagan explained the genius of the ancient Greek mathematician Eratosthenes by illustrating how Eratosthenes disproved the flat Earth idea through a simple but brilliant experiment over 2,200 years ago. Eratosthenes learned that in Syene (modern Aswan, Egypt), at noon on the summer solstice, vertical objects cast no shadow because the sun ...
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GREEK MATHEMATICS - SlideServe
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39K views · 347 reactions | The Oxford Online Maths Club is where you get to hang out with fellow mathematicians, whether you want to do maths at university, want a refresher or have decided to take it up for the first time. James Munro is your MC alongside students such as Eve and there's live mathematical and non-mathematical chat. https://www.maths.ox.ac.uk/outreach/oxford-online-maths-club | Oxford Mathematics | Facebook
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39K views · 347 reactions | The Oxford Online Maths Club is where you get to hang out with fellow mathematicians, whether you want to do maths at university, want a refresher or have decided to take it up for the first time. James Munro is your MC alongside students such as Eve and there's live mathematical and non-mathematical chat. https://www.maths.ox.ac.uk/outreach/oxford-online-maths-club | Oxford Mathematics | Facebook
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