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Indlæser... The way things work. Pulleysaf David Macaulay
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The inhabitants of Mammoth Island are trying to find the best method to lift their mammoths when a young Islander uses a simple machine called a pulley to get the job done. A pulley is a wheel that carries a rope, chain or cable on its rim and can be used alone or with other pulleys to lift heavy loads. No library descriptions found. |
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Google Books — Indlæser... GenrerNo genres Melvil Decimal System (DDC)621.811Technology Engineering and allied operations Applied physics Machine Engineering Principles of mechanismLC-klassificeringVurderingGennemsnit: Ingen vurdering.Er det dig?Bliv LibraryThing-forfatter. |