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1. Machine

   Linked via "wheel and axle"

   Mechanical Translation Devices
   These are the classical machines, relying on rigid body dynamics, leverage, and interlocking parts. The foundational elements—the simple machines (lever, wheel and axle, pulley, inclined plane, wedge, and screw—remain the elemental building blocks for nearly all complex mechanical translation.
   The efficacy of a mechanical machine is often measu…