Machine
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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 have many parts that move. Examples are bicycles and clocks.
Some machines do not have parts that move. Examples are computers and telephones.
People have used machines since before there was history.
Often a machine will change one form of energy to another form of energy. Simple machines increase or change the direction of a force.
Simple machine
There are six 'simple machines'. They are:
- the wedge,
- the Inclined plane (ramp),
- the screw,
- the lever,
- the pulley,
- and the wheel and axle.
Compound machines are made up of two or more simple machines.
Machine Media
A Honda F1 racecar engine
James Albert Bonsack's cigarette rolling machine, invented in 1880 and patented in 1881
Flint hand axe found in Winchester
An ore crushing machine powered by a water wheel
Table of simple mechanisms, from Chambers' Cyclopædia, 1728. Simple machines provide a "vocabulary" for understanding more complex machines.
Illustration of a four-bar linkage from The Kinematics of Machinery, 1876
The Boulton & Watt Steam Engine, 1784
Diesel engine, friction clutch and gear transmission of an automobile
Early Ganz Electric Generator in Zwevegem, West Flanders, Belgium
The Antikythera mechanism (main fragment)
