what is machine??? plz tell me
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machine is the thing which reduces human effort .ex-fan, bike , car
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A machine is a thing that is created by people to make work easier. It is a tool or invention which multiplies the effect of human effort. The machine produces a mechanical advantage. ... Some machines do not have parts that move. Examples are computers and telephones.
simple machine a device for altering the magnitude or direction of a force, esp a lever, screw, wedge, or pulley.
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