A clear, informative text, complemented by five pop-up spreads, explains the principles behind such useful machines as levers, rotors, pulleys, and windmills.
Caroline Grimshaw, Iqbal Hussain, John Stringer, Nick Duffy, Spike Gerrell, Jo Moore
Hardcover
(World Book Inc, June 1, 1997)
Uses a question-and-answer format as well as quizzes and other activities to describe machines, present their history, explain how they operate, and discuss how they change the world
Mark Lambert, Alistair Hamilton-MacLaren, Stephen Wheele
Library Binding
(Bookwright Pr, Oct. 1, 1991)
Demonstrates the principles underlying the technology of machinery through projects for building fifteen different types of machines, including a water clock, wind machine, screw pump, and data sorter.
Caroline Grimshaw, Iqbal Hussain, John Stringer, Nick Duffy, Spike Gerrell, Jo Moore
Paperback
(World Book Inc, Feb. 1, 1998)
Uses a question-and-answer format as well as quizzes and other activities to describe machines, present their history, explain how they operate, and discuss how they change the world.