Amazing Machines
Keith Good
Hardcover
(Evans Brothers Ltd, Oct. 15, 1999)
From the Back Cover: "... provide all the necessary ingredients to start children designing and making their own exciting technology projects, based on simple 'recipes' that use readily available, low-cost materials." "... introduces the reader to levers and linkages, pulley, gear wheels, friction drive, cams and crankshafts, wheels and axles, and more."