Simple machines Inclined plane, Wheel and axle, Lever, Pulley, Wedge, Screw
Mechanical components,Axle, Bearings, Belts, Bucket, Fastener, Gear, Key, Link chains, Rack and pinion, Roller chains, Rope, Seals, Spring, Wheel,Clock,Atomic clock, Chronometer, Pendulum clock, Quartz clock,Compressors and Pumps,Archimedes' screw, Eductor-jet pump, Hydraulic ram, Pump, Tuyau, Vacuum pump,Heat engines,External combustion engines
Steam engine, Stirling engine,Internal combustion engines,Reciprocating engine, Gas turbine
Linkages,Pantograph, Peaucellier-Lipkin,Turbine,Gas turbine, Jet engine, Steam turbine, Water turbine, Wind generator, Windmill,Aerofoil,Sal, Wing, Rudder, Flap, Propeller,Electronics
Vacuum tube, Transistor, Diode, Resistor, Capacitor, Inductor,Miscellaneous,Robot, Vending machine, Wind tunnel,Check weighing machines, Riveting machines.