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  2. Pelton wheel - Wikipedia

    en.wikipedia.org/wiki/Pelton_wheel

    The Pelton wheel or Pelton Turbine is an impulse -type water turbine invented by American inventor Lester Allan Pelton in the 1870s. [ 1][ 2] The Pelton wheel extracts energy from the impulse of moving water, as opposed to water's dead weight like the traditional overshot water wheel. Many earlier variations of impulse turbines existed, but ...

  3. Artificial gravity - Wikipedia

    en.wikipedia.org/wiki/Artificial_gravity

    Artificial gravity is the creation of an inertial force that mimics the effects of a gravitational force, usually by rotation. [ 1] Artificial gravity, or rotational gravity, is thus the appearance of a centrifugal force in a rotating frame of reference (the transmission of centripetal acceleration via normal force in the non-rotating frame of ...

  4. California State Lottery - Wikipedia

    en.wikipedia.org/wiki/California_State_Lottery

    The top prize was fixed at $3 million; the minimum guaranteed prize was $1,750. While Big Spin Scratchers remained in circulation in 2009, winners who would previously have spun the wheel on The Big Spin had the option to spin the wheel—untelevised—as an alternative to going to the Make Me a Millionaire show, which succeeded The Big Spin.

  5. Enjoy classic board games such as Chess, Checkers, Mahjong and more. No download needed, play free card games right now! Browse and play any of the 40+ online card games for free against the AI or ...

  6. AOL Mail

    mail.aol.com

    You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.

  7. Freewheel - Wikipedia

    en.wikipedia.org/wiki/Freewheel

    In mechanical or automotive engineering, a freewheel or overrunning clutch is a device in a transmission that disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft. An overdrive is sometimes mistakenly called a freewheel, but is otherwise unrelated. The condition of a driven shaft spinning ...

  8. History of perpetual motion machines - Wikipedia

    en.wikipedia.org/wiki/History_of_perpetual...

    The history of perpetual motion machines dates at least back to the Middle Ages. For millennia, it was not clear whether perpetual motion devices were possible or not, but modern theories of thermodynamics have shown that they are impossible. Despite this, many attempts have been made to construct such machines, continuing into modern times.

  9. Play Canasta Online for Free - AOL.com

    www.aol.com/games/play/masque-publishing/canasta

    Play free online Canasta. Meld or go out early. Play four player Canasta with a friend or with the computer. By Masque Publishing. Advertisement. Advertisement.

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