This guy has mad skills!
A compilation of Professor Walter Lewins and some of his lectures at Massachusetts Institute of Technology (MIT). He draws some of the best lines, especially dashed lines – so fast that his hand isn’t even moving up and down to produce the dashes.
If you say you didn’t learn something new today, you just weren’t paying attention.
Say the word “doubt” aloud. What is that “b” doing there? Does it have any purpose? Gina Cooke explains the long and winding history of “doubt” and why the spelling, though it seems random, is a wink to its storied past.
Tricks to amaze your friends this New Year’s Eve.
Previously:
10 Bets You Will Never Lose