This question, or some variant of it, has been a common extra credit question in my classes every year. I'll post the answer tomorrow. I tried to make sure it was a question you couldn't just google. Unfortunately, if you really want to cheat, you can still Wolfram Alpha it. Mathematically speaking, Wolfram Alpha kicks Google's butt, and is a resource you ought to check out frequently. Below are some pretty amazing things Wolfram Alpha can do for you:
Where is the International Space Station?
How many meters is 52 inches?
Where's the world's tallest building?