by Chris Ollerenshaw (Author), PatTriggs (Illustrator)
How do springs and wind-ups store energy? In this book children find out by experimentation and use the blueprint at the end of the book to build their own model.
Format: Paperback
Pages: 32
Publisher: A & C Black Publishers Ltd
Published: 31 Aug 1999
ISBN 10: 0713652314
ISBN 13: 9780713652314