standing waves
7:02Traffic Waves
1M views • 18 years ago
wbeaty
A short video from the trafficwaves.org site showing how traffic jams and standing waves form, including the fight between cheaters and blockers at an exit-lane backup. It also touches on how individual driving behavior affects the flow.
5:55Richard Feynman talks about light
1.8M views • 19 years ago
sdfhsfh
A PBS clip in which Richard Feynman explains the strange nature of light and electromagnetic radiation. He conveys how little of it we actually see and how radio waves are present everywhere.
4:44Debt Metaphor
95K views • 17 years ago
Ward Cunningham
Ward Cunningham explains the history and intent of the debt metaphor, which he coined while refactoring the WyCash product. He says debt means code reflecting an incomplete understanding of the problem, not sloppy programming.
6:01Cambridge Ideas - Professor Risk
128K views • 16 years ago
Cambridge University
David Spiegelhalter, Professor of the Public Understanding of Risk, uses statistics to weigh everyday risks such as bacon sandwiches and cycling. The six-minute piece introduces micromorts as a way to compare the risk of dying.