Have you ever wondered... How many sheets of paper can be produced from a single tree? Why do FM radio stations end in an odd number? What causes a sonic boom? Where is the world's fastest computer located?

If you've ever scratched your head and thought, why?," you'll love How Much Does the Earth Weigh? With more than 100 of the most popular questions culled from the intriguing "Question of the Day" segment of HowStuffWorks.com, this fun book answers questions you never even thought to ask.

Written in Marshall Brain's award-winning style, this book explains in language you can understand the complexities behind some of the world's imponderables. You'll never look at a light socket, gas pump, or Web page the same way again!