Each book in this series focuses on a type of simple mechanism and examines how it is used to make different toys work. The books use simple language and labelled photographs to explain the scientific principles behind each mechanism. Titles in the series include: Levers; Pulleys; Ramps and Wedges; Screws, Nuts, and Bolts; Springs; and Wheels and Axles.
This is Book 4 in the Acorn: How Toys Work Series. See all Acorn: How Toys Work books here.
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