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Machine Manages

  • Date Submitted: 02/08/2012 06:53 AM
  • Flesch-Kincaid Score: 15.7 
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A machine manages power to accomplish a task. Examples include, a mechanical system, a computing system, an electronic system, and a molecular machine. In common usage, the meaning is that of a device having parts that perform or assist in performing any type of work. Asimple machine is a device that transforms the direction or magnitude of a force.

The word "machine" is derived from the Latin word machina,[1] which in turn derives from the Doric Greek μαχανά (machana), Ionic Greekμηχανή (mechane) "contrivance, machine, engine"[2] and that from μῆχος (mechos), "means, expedient, remedy".[3]

The meaning of machine is traced by the Oxford English Dictionary[4] to an independently functioning structure and by Merriam-Webster Dictionary[5] to something that has been constructed. This includes human design into the meaning of machine.

Historically, a device required moving parts to classify 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, such as a computer, radio, and television.[1]


[edit]Simple machines

The idea that a machine can be broken down into simple movable elements ledArchimedes to define the lever,pulley and screw as simple machines. By the time of the Renaissance this list increased to include the wheel and axle,wedge and inclined plane.


The word engine derives from "ingenuity" and originally referred to contrivances that may or may not be physical devices.

An automobile engine is called an internal combustion engine because it burns fuel (an exothermic chemical reaction) inside a cylinder and uses the expanding gases to drive a piston. A jet engine uses a compressor to compress air which is burned with fuel so that it expands through a nozzle to provide thrust to an aircraft, and so is also an "internal combustion engine." [6]

[edit]Computing machines

Computers store and manipulate the flow...


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