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1930s
1940s
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black class classes diagrams differ effort encyclopaedia examples first force fulcrum harmsworth have lever levers load order orders point position power provided pushing second their there third three turning vintage weight white workVintage Black And White Diagrams Of The Three Orders Of Levers, With Examples Of Their Applications. Editorial Photo
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Vintage black and white diagrams of The three Orders of Levers, with examples of their applications. #170961379
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The Harmsworth Encyclopaedia 1930s / 1940s - Vintage black and white diagrams of The three Orders of Levers, with examples of their applications. 1st Class of Lever, fulcrum between power and weight. 2nd Class of Lever, weight between power and fulcrum, 3rd Class of All levers have a fulcrum turning point, effort the force provided to do the work and the load the force we are pushing against. There are three classes of levers, first order, second order and third order. They differ in the position of the fulcrum, load and effort. Lever, power between weight and fulcrum.
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