A machine is any device that uses energy to perform some activity. In common usage, the meaning is that of a device having parts that perform or assist in performing any type of work. A simple machine is a device that transforms the direction or magnitude of a force without consuming any energy. The word "machine" is derived from the Latin word machina, which in turn derives from the Doric Greek μαχανά (machana), Ionic Greek μηχανή (mechane) "contrivance, machine, engine" and that from μῆχος (mechos), "means, expedient, remedy".
Historically, a device required moving parts to be classified as a machine; however, the advent of electronics technology has led to the development of devices without moving parts that many refer to as machines—the computer being the most obvious example.
"Engines" are machines that convert heat or other forms of energy into mechanical energy. For example, in an internal combustion engine the expansion of gases caused by the heat from an exothermic chemical reaction results in a force being applied to a movable component, such as a piston or turbine blade. An engine is often considered part of a larger machine, such as an automobile or an aircraft.
|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|
|Turbine||Gas turbine, Jet engine, Steam turbine, Water turbine, Wind generator, Windmill|
|Aerofoil||Sail, Wing, Rudder, Flap, Propeller|
|Electronics||Vacuum tube, Transistor, Diode, Resistor, Capacitor, Inductor|
|Miscellaneous||Robot, Vending machine, Wind tunnel, Check weighing machines, Riveting machines|
Quotes regarding Machine.
MACHINE (through Fr. from Lat. form machina of Gr. µr i xavr l), any device or apparatus for the application or modification of force to a specific purpose. The term "simple machine" is applied to the six so-called mechanical powers - the lever, wedge, wheel and axle, pulley, screw, and inclined plane. For machine-tools see TooLs. The word machine was formerly applied to vehicles, such as stage-coaches, &c., and is still applied to carriages in Scotland; a survival of this use is in the term "bathing machine." Figuratively, the word is used of persons whose actions seem to be regulated according to a rigid and unchanging system. In politics, especially in America, machine is synonymous with party organization. A stage device of the ancient Greek drama gave rise to the proverbial expression, "the god from the machine," Lat. deus ex machina, for the disentangling and conclusion of a plot by supernatural interference or by some accident extraneous to the natural development of the story. When a god had to be brought on the stage he was floated down from above by a yEpavos (crane) or other machine (µiXavi i). Euripides has been reproached with an excessive use of the device, but it has been pointed out (A.E. Haigh, Tragic Drama of the Greeks, p. 245 seq.) that only in two plays (Orestes and Hippolytus) is the god brought on for the solution of the plot. In the others the god comes to deliver a kind of epilogue, describing the future story of the characters, or to introduce some account of a legend, institution, &c.
In everyday life, a machine is a thing that is created by people to make work easier.
People have used machines since before there was history.
The are six special machines that are called "Simple Machines". They are:
Compound machines are made up of two or more simple machines.