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  2. Trap bar - Wikipedia

    en.wikipedia.org/wiki/Trap_bar

    Trap bars often have two pairs of handles: one pair projects upwards in a squared D shape from the bar and one pair is level with the bar. The bar can be flipped over to make either pair more accessible. This gives a choice of two different grip heights with which to begin the lift. The trap bar (also referred to as the hex bar) is an implement ...

  3. Armlock - Wikipedia

    en.wikipedia.org/wiki/Armlock

    Armbar counter on the ground normally is a body roll towards the opponent in order to prevent overextension of the captured elbow bend. The jūji-gatame (十字固め, rendered as "Ude-Hishigi-Juji-Gatame"), which translates to "cross pin" or "cross hold down" also sometimes used interchangeably with the terms armbar, cross armbar or straight armbar, is a Jujutsu, and thus a Judo, technique ...

  4. Vibrato systems for guitar - Wikipedia

    en.wikipedia.org/wiki/Vibrato_systems_for_guitar

    A vibrato system on a guitar is a mechanical device used to temporarily change the pitch of the strings. It adds vibrato to the sound by changing the tension of the strings, typically at the bridge or tailpiece of an electric guitar using a controlling lever, which is alternately referred to as a whammy bar, vibrato bar, or tremolo arm. [1]

  5. Breaker bar - Wikipedia

    en.wikipedia.org/wiki/Breaker_bar

    A breaker bar is able to create a larger amount of rotational force compared to a standard socket wrench. A standard breaker bar is strong enough to allow the user to apply up to 2,500 pound-feet (3,400 N⋅m) of torque without breaking the bar. [3] A high-end 1/2" socket wrench can withstand a maximum of 500 pound-feet (680 N⋅m) of torque. [4]

  6. Capstan (nautical) - Wikipedia

    en.wikipedia.org/wiki/Capstan_(nautical)

    In its earliest form, the capstan consisted of a timber mounted vertically through a vessel's structure which was free to rotate. Levers, known as bars, were inserted through holes at the top of the timber and used to turn the capstan. A rope wrapped several turns around the drum was thus hauled upon.

  7. Tilting bolt - Wikipedia

    en.wikipedia.org/wiki/Tilting_bolt

    M1895 Lee Navy with an open bolt, demonstrating its vertical locking surface on its bottom in front of the handle. Tilting bolt action is a type of locking mechanism often used in self-loading firearms and, rarely, in straight-pull repeating rifles. Essentially, the design consists of a moving bolt driven by some mechanism, most often a piston ...

  8. Rotating wall technique - Wikipedia

    en.wikipedia.org/wiki/Rotating_wall_technique

    The rotating wall technique (RW technique) is a method used to compress a single-component plasma (a cold dense gas of charged particles) confined in an electromagnetic trap. It is one of many scientific and technological applications that rely on storing charged particles in vacuum.

  9. Bicycle handlebar - Wikipedia

    en.wikipedia.org/wiki/Bicycle_handlebar

    Drop bars may have one or two longitudinal indentations so that the brake and shift cables protrude less when they are wrapped under the bar tape. They may also have a flattened top section. Track "Track" style bars with large-radius curve. Track drop bars are a variation of bars designed for the typical riding positions of track bicycle racers.