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A visitor
sits in a rotating chair and holds a rapidly spinning bicycle wheel
by handles attached to the center hub. As the visitor tips the bicycle
wheel to one side, the chair begins to rotate either right or left,
depending on the direction the wheel is spinning. The bicycle wheel
can also be hung from a freely rotating cable by an eye loop in
one of its handles. Instead of flopping down (which it will do if
it isn’t spinning), it remains upright and “revolves”
around the suspension cable. This exhibit shows the strange, non-intuitive
attributes of spinning gyros. Any object that spins will hold to
its axis until a force is applied from outside.
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