Wheel
A wheel is a circular component that is intended to rotate on an axial bearing. The wheel is one of the main components of the wheel and axle which is one of the six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating movement or transportation while supporting a load, or performing labor in machines. Wheels are also used for other purposes, such as a ship's wheel, steering wheel, potter's wheel and flywheel.
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Famous quotes containing the word wheel:
“The wheel is come full circle.”
—William Shakespeare (1564–1616)
“A wheel that can be turned though nothing else moves with it, is not a part of the mechanism.”
—Ludwig Wittgenstein (1889–1951)
“Let go thy hold when a great wheel runs down a hill lest it break thy neck with following; but the great one that goes upward, let him draw thee after.”
—William Shakespeare (1564–1616)