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Third Kind of Lever
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Description: "In the third order of lever the power acts between the prop and the resistance, where also P : W :: BF : AF, and the pressure on the fulcrum is P-W, or the power less the weight."——Pettigrew, 1874
Source: Rawson, W. W. Success in Market Gardening: A New Growers' Manual (Boston: W.W. Rawson, 1892) 20
Keywords: order, lever, third, power, resistance, kind, class, fulcrum, pressure
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