Euclid's puzzling parallel postulate - Jeff Dekofsky Euclid's puzzling parallel postulate - Jeff Dekofsky begin-post-stats TED-Ed • 85K views end-post-stats begin-duration 3:37 end-duration Math topics: _Elementary_geometry_##Elementary geometry##_Line_(geometry)_##Line (geometry)##_Parallel_(geometry)_##Parallel (geometry)##_Point_(geometry)_##Point (geometry)##_Metric_geometry_##Metric geometry##_Hyperbolic_geometry_##Hyperbolic geometry##_Elliptic_geometry_##Elliptic geometry##_Curve_##Curve Other topics: _Non-euclidean_geometry_##Non-euclidean geometry##_Parallel_postulate_##Parallel postulate##_General_relativity_##General relativity##_Non-Euclidean_geometry_##Non-Euclidean geometry##_Ancient_greek_mathematicians_##Ancient greek mathematicians##_Eudoxus_of_Cnidus_##Eudoxus of Cnidus##_Pythagoras_##Pythagoras##_Euclid_##Euclid##_Mathematicians_of_medieval_islam_##Mathematicians of medieval islam##_Alhazen_##Alhazen##_Omar_Khayyam_##Omar Khayyam##_Nasir_al-Din_al-Tusi_##Nasir al-Din al-Tusi video-id: LPET_HhN0VM channel_TED-Ed_ So What Learning Ancient greek mathematicians , Elementary geometry , Mathematicians of medieval islam , Metric geometry , Non-euclidean geometry Monday, January 22, 2018 Share Share
