YouTube Description: View full lesson here: http://ed.ted.com/lessons/the-mathematics-of-sidewalk-illusions-fumiko-futamura Have you ever come across an oddly stretched image on the sidewalk, only... continue reading
posted by Aard Vark (oritteropo) 7 years 3 months ago • 21 views • 4:55Videos (27) | Sift Talk (0) | Blogs (0) | Comments (1000) |
Your eyes aren't always telling the truth.
posted by Mordhaus 7 years 4 months 3 weeks ago • 1,653 views • 2:55I built this grass hut up on a ridge. It's roughly parallel with the tiled hut and wattle and daub hut that are a couple of hundred meters away down in a valley. I built it on a ridge to get away from... continue reading
posted by Mordhaus 7 years 9 months 3 weeks ago • 567 views • 4:17YouTube: Why is there a bright spot behind spherical objects?
posted by PlayhousePals 8 years 6 months 2 weeks ago • 60 views • 7:20Why are all the gas stations, cafes and restaurants in one crowded spot? As two competitive cousins vie for ice-cream-selling domination on one small beach, discover how game theory and the Nash Equilibrium... continue reading
posted by PlayhousePals 9 years 2 months 3 weeks ago • 885 views • 4:07Job security much? YouTube: New York's pay phones may seem outdated, but we hung out with a couple of technicians who showed us the hi-tech secret hiding on every block
posted by PlayhousePals 9 years 5 months 3 weeks ago • 314 views • 3:15YouTube Description: Light is so common that we rarely think about what it really is. But just over two hundred years ago, a groundbreaking experiment answered the question that had occupied physicists... continue reading
posted by aaronfr 1 decade 1 year 2 months ago • 1,437 views • 7:40