Machines

by Chris Oxlade

Published 1 September 1998
This lively and practical book looks at the enormous variety of machines and how they work. Fascinating and easy-to-do projects, such as making your own gears and belt drives, constructing a water-wheel and an Archimedean screw, or making your very own vacuum cleaner, will help you to understand the principles that are used to make machines work.

Cameras

by Chris Oxlade and Al Morrison

Published 1 January 1998
Examines and explains the science of the world around us. Accessible and stimulating for the independent reader and excellent back-up for school projects. Exciting color photographs and explanatory artworks draw the reader in to find out more about basic scientific principles, how things work, and what the future holds. Practical experiments increase understanding and are fun to do.