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Additional
engines
English Wikipedia - The Free Encyclopedia
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Engine
An
engine
or
motor
is a
machine
designed to convert one form of
energy
into
mechanical energy
.
Heat engines
, including
internal combustion engines
and
external combustion engines
(such as
steam engines
), burn a
fuel
to create
heat
, which then creates a
force
.
Electric motors
convert electrical energy into
mechanical
motion;
pneumatic motors
use
compressed air
and others—such as
clockwork motors
in
wind-up toys
—use
elastic energy
. In biological systems,
molecular motors
, like
myosins
in
muscles
, use
chemical energy
to create forces and eventually motion.
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