So there was this open pit tin mine in Malaysia. Huge! You wouldn't think human beings could dig a hole that big.
One problem: they dug it where the tin was, of course. Which was right next to the ocean. And the owner got a little too ambitious, and dug too close to the shore:
http://www.youtube.com/watch?v=aa3nFLZIvbU
Really quite something. But the amazing thing: in spite of all that water rushing in, and there's a LOT of water, if you look closely, right at the end, the level of the ocean doesn't change!
Thanks,
Bill