"It's never been done on the internet. You're going to learn something."
YouTube: SYNCHRONIZE WITH DEREK'S VIDEO: http://bit.ly/SouthernSwirl
We each repeated the experiment 3 times, and got the same results every time. For those of you who might be skeptical, great! The good news is that right circularly prismatic kiddie pools are only $10 and you can do the experiment for yourself at your latitude. There's really no reason you shouldn't do this on your own, so before you criticize how we've done it, I'd strongly encourage you to do it for yourself.