I Wonder Why Zippers Have Teeth: And Other Questions About Inventions (I Wonder Why)

Rating:
Summary: Wonderful book.
Review: This book told me a lot about inventions andwhy zippers have teeth. They also told me when things were invented. like the personal stereo and what is the worlds smallests radio is. This is a great book to read if you want to find something out. This was a great read for me.