Cranes, Dump Trucks, Bulldozers: and Other Building Machines (How Things Work)
Books / Paperback
Books › Juvenile Nonfiction › Transportation › General
ISBN: 1856978656 / Publisher: Kingfisher, March 1993
Investigates the functions of various kinds of building machines and how they work, and includes instructions for related projects and experiments
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Here's a lively look at large building machines. It discusses how roads are made, shows how levers and pulleys help us move heavy loads, explains what a cement mixer has to do with Archimedes, and much more.
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