What the encyclopedia was to the 20th century, this book is to the 21st century:bite-sized knowledge in fun facts. Did you know that:- giant sequoias are the same height as a 25-storey apartment building? - astronauts pee in a vacuum cleaner? - most people don't like clowns? - more than half of all people live in Asia? - a praying mantis only has one ear? - Babies have more bones than adults? Are comets made of ice?