I love NPR!
On one of my annoying commutes to work, I tuned into NPR because I couldn't stand the choice of mainstream songs harassing my ears on the other channels. As usual there was an interesting conversation going on when I tuned in. This time it was about human behavior under certain conditions. A particularly interesting one was that people found it very difficult to walk in a straight line when they can't see. So I a made mental note to look this up once I got to my cubicle. And I found this awesome animation that did a pretty good job of narrating experiments that have been carried out on this observation.
[vimeo http://vimeo.com/17083789 w=280&h=200]