This book is part of a book series called Fact Finders-Great Inventions .

This book has been graded for interest at 8-10 years.

There are 32 pages in this book. This book was published 2000 by Capstone Press .

Marc Tyler Nobleman has written many nonfiction books, including Bill the Boy Wonder and Fairy Spell. He lives in Bethesda, Maryland. www. noblemania. com