HOW DO YOU USE A SPIDER LADDER? is a hilarious collection of the world's most useless inventions. Ever heard of a motorized ice-cream cone? A breath-powered foot warmer? A tooth-exercising device? Readers will find solutions to problems they never knew existed. Some of the ideas here never made it off the drawing board, while others went on to conquer the world. Well, almost...

 

There are 176 pages in this book. This is a dictionary/encyclopedia. This book was published 2013 by Scholastic .

Dr Mike Goldsmith works at the UK's National Physical Laboratory. He has worked on a variety of science topics, including sound and space. He has written several books for children.