Other editions of book Learn About: Magnets: A fascinating fact file and learn-it-yourself project book

Whether you know it or not, there are magnets hidden everywhere - in compasses, hairdryers, in telephones, in computers. This lively and practical book will tell you how magnets make engines work, how they help you find your way, and even how magnets can be switched on and off.

Whether you know it or not, there are magnets hidden everywhere - in compasses, hairdryers, in telephones, in computers. This lively and practical book will tell you how magnets make engines work, how they help you find your way, and even how magnets can be switched on and off.