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Euclid's puzzling parallel postulate - Jeff Dekofsky
3:37
YouTubeTED-Ed
Euclid's puzzling parallel postulate - Jeff Dekofsky
View full lesson: http://ed.ted.com/lessons/euclid-s-puzzling-parallel-postulate-jeff-dekofsky Euclid, known as the "Father of Geometry," developed several of modern geometry's most enduring theorems--but what can we make of his mysterious fifth postulate, the parallel postulate? Jeff Dekofsky shows us how mathematical minds have put the ...
194.7K viewsMar 26, 2013
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