Note: Rachel Roellke Coddington and Jolby will present their book at Powell's Books at Cedar Hills Crossing on Wednesday, May 15, at 7:00 p.m....
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Only elementary math skills are needed to follow this instructive manual, which covers many familiar machines and their components, including levers, block and tackle, and the inclined plane and wedge, in addition to hydrostatic and hydraulic machines, internal combustion engines, trains, and more. 204 black-and-white illustrations.
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