It's a kid's book, really, but it's fascinating. The title is "501 Incredible But True Facts to Amaze You". For example, did you hear about the guy in Virginia who was struck by lightening seven times…and lived! I can't figure out if that is good luck or bad luck. Or the fact that a python can swallow a pig whole, and then not eat again for a year. Did you know that Beethoven used to dump ice water on his head to stimulate his brain? 

But even more fascinating, here are some facts about our world: 

The oldest elements found on earth are zircon crystals from Australia that are 4,276-million years old.

There are rocks found on the top of Mt. Everest that were formed in the bottom of the sea 6 million years ago.

That the earth's crust, which is 20 miles deep, if you compare it to the full…