There were 2 books found.
NS-HB, AUS $24.95, NZ $27.99
A practical guide to the scientific principles of force and motion: levers, inclined planes, wheels and axles, gears, cams, cranks, pulleys and ratchets. Includes twelve working machines to build
NS-HB, AUS $24.95, NZ $29.99
Look inside the marvellous human machine and discover how it works, including four incredible pop-up scenes.