Invention and Discovery

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EDC Publishing, Apr 1, 1988 - Juvenile Nonfiction - 128 pages
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-- Indispensable homework aids and reference sources

-- Definitions supported by detailed pictures and diagrams

-- Topics arranged thematically so that words are explained in context

-- Fully integrated system of cross referencing plus a comprehensive index

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About this book 53 Radio and sound recording
Water power and wind power 64 Domestic appliances
Nuclear power 68 Clocks and watches

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