Gyroscopic
precession is the most known form of precession because
it deals with the induction of a torque on a rotating body.
Torque-induced
precession
is a phenomenon in which an axis of a spinning object depicts
a cone in space
when an outer torque is applied to that turning object.
If the speed of
rotation and the magnitude of the outer torque remain constant
the axis of spin
will move at a right angle to the direction that would
normally result from the
external torque.
The action occurs 90 degrees after the induction of the
action.
Helicopters blades react 90 degrees off phase because of
gyroscopic precession.
Below are two
videos that perfectly describe gyroscopic precession and the
physics of torque-induced precession.
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