InventorsToolbox: The Elements of Machines - 0 views
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Matt Johnston on 14 Jul 10"Simple Machines: These devices were all in common use for centuries before Leonardo's time. Each one makes work easier to do by providing some trade-off between the force applied and the distance over which the force is applied."
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Matt Johnston on 14 Jul 10Simple Machines: These devices were all in common use for centuries before Leonardo's time. Each one makes work easier to do by providing some trade-off between the force applied and the distance over which the force is applied.