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  2. Freewheel - Wikipedia

    en.wikipedia.org/wiki/Freewheel

    The condition of a driven shaft spinning faster than its driveshaft exists in most bicycles when the rider stops pedaling. In a fixed-gear bicycle, without a freewheel, the rear wheel drives the pedals around.

  3. Newton disc - Wikipedia

    en.wikipedia.org/wiki/Newton_disc

    The disc is named after Isaac Newton. Although he published a circular diagram with segments for the primary colours that he had discovered (i.e. a colour wheel ), it is unlikely that he ever used a spinning disc to demonstrate the principles of light. He actually referred to the mixture of colours painted on a spinning top as "dirty" and described several different experiments that support ...

  4. Wheel of Fortune (American game show) - Wikipedia

    en.wikipedia.org/wiki/Wheel_of_Fortune_(American...

    The games are all similar, incorporating a wheel, puzzle display board, play money and various accessories like Free Spin tokens. Milton Bradley released the first board game in 1975. In addition to all the supplies mentioned above, the game included 20 prize cards to simulate the "shopping" prizes of the show, with prizes ranging in value from ...

  5. Locking hubs - Wikipedia

    en.wikipedia.org/wiki/Locking_hubs

    Locking hubs, also known as free wheeling hubs are fitted to some (mainly older) four-wheel drive vehicles, allowing the front wheels to rotate freely when disconnected (unlocked) from the front axle. This is done to reduce the mechanical resistance of the front-portion of the drivetrain when four-wheel drive is not in use. [1] The hub, along with the wheel, is designed to engage (lock) onto ...

  6. Spinner (wheel) - Wikipedia

    en.wikipedia.org/wiki/Spinner_(wheel)

    The spinner on automobile wheels historically refers to knock-off hub nuts or center caps. They may be the actual, or intended to simulate, the design used on antique vehicles or vintage sports cars. A "spinner wheel" in contemporary usage is a type of hubcap or inner wheel ornament, that spins independently inside of a wheel itself when the ...

  7. Front freewheel - Wikipedia

    en.wikipedia.org/wiki/Front_freewheel

    Front freewheel. A front freewheel or freewheel crank is a freewheel mechanism used on some bicycles which enables the drivetrain of the bicycle to continue spinning while the rider rolls, but stops pedaling, or coasts. Unlike regular bicycles, a front freewheel can make it possible to shift gears using a derailleur while the rider is coasting ...

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  9. Throbber - Wikipedia

    en.wikipedia.org/wiki/Throbber

    Unlike graphical activity indicators, the spinning bar is commonly combined with progress displays, since the lower resolution of character-based progress bars requires a separate indication of activity. Often, the spinning wheel is displayed at the position of the cursor, then also called "spinning cursor" or "rotating cursor".