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I personally think power naps are wonderful. I've tried them twice in the last two weeks, and they were very very helpful. However, for each of those times, I had a very hard time waking up, and usually got up 30 minutes after waking up. And there were many more times when I couldn't wake up despite the alarm clock ringing, and slept for 3 hours. Today was one of those days.

By the way, Kelly sent this to me: http://weblog.xanga.com/kelsers123/625003229/59-destiny-numbers.html

Wow. Maybe because I'm looking for it, I think some of it is true actually...

Paraphrase:
John Cavendish was an extremely shy and smart man, way ahead of his time. Mitchell gave him a set of instruments that could be used to calculate the mass of the earth by using two 350 pound balls and recording their effects on each other. It was extremely precise, and was extremely sensitive. Despite the thousands of possible sources of errors in the experiment, he managed to calculate the earths mass to within 1% of what we think it is today. It was also quite close to Issac Newton's calculations earlier, and he didn't have any experimental data.