An early printing press machine
A machine is a thing that is created by people to make work easier.
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.
There are six special machines that are called "Simple Machines". They are:
Compound machines are made up of two or more simple machines.
James Albert Bonsack's cigarette rolling machine, invented in 1880 and patented in 1881.
Table of simple mechanisms, from Chambers' Cyclopædia, 1728. Simple machines provide a "vocabulary" for understanding more complex machines.
A water-powered mine hoist used for raising ore. This woodblock is from De re metallica by Georg Bauer (Latinized name Georgius Agricola, ca. 1555) an early mining textbook that contains numerous drawings and descriptions of mining equipment.