TED-Ed
Jeff Dekofsky: Euclid's puzzling parallel postulate
2013 • E115 Mar 26, 2013 4m
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 postulate to the test and led to larger questions of how we understand mathematical principles. [Directed by David Bernal, narrated by Jeff Dekofsky].