Upon seeing my first Foucault pendulum since I was a little kid, I proudly told my little kid that it was a giant clock. Well, we didn't have Google back in my day, and after looking up a little information, turns out I was dead wrong. Unless this thing is at one of the Earth's poles, the only thing it is good for is proving the Earth rotates. Too bad, it would be fun to stand around this thing at midnight on New Year's Eve and wait for a pin to be knocked over. Can't win them all. I am still going to keep the little kid in the dark for the time being.