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  2. Scissors mechanism - Wikipedia

    en.wikipedia.org/wiki/Scissors_mechanism

    A scissors mechanism uses linked, folding supports in a criss-cross 'X' pattern. [1] The scissor mechanism is a mechanical linkage system used to create vertical motion or extension. It consists of a series of interconnected, folding supports that resemble the shape of a pair of scissors, hence its name.

  3. Lever - Wikipedia

    en.wikipedia.org/wiki/Lever

    The lever is operated by applying an input force F A at a point A located by the coordinate vector r A on the bar. The lever then exerts an output force F B at the point B located by r B. The rotation of the lever about the fulcrum P is defined by the rotation angle θ in radians. Archimedes lever, Engraving from Mechanics Magazine, published ...

  4. Linkage (mechanical) - Wikipedia

    en.wikipedia.org/wiki/Linkage_(mechanical)

    The movement of a body, or link, is studied using geometry so the link is considered to be rigid. [1] The connections between links are modeled as providing ideal movement, pure rotation or sliding for example, and are called joints. A linkage modeled as a network of rigid links and ideal joints is called a kinematic chain.

  5. Screw mechanism - Wikipedia

    en.wikipedia.org/wiki/Screw_mechanism

    The force on a screw is not usually applied at the rim as assumed above. It is often applied by some form of lever; for example a bolt is turned by a wrench whose handle functions as a lever. The mechanical advantage in this case can be calculated by using the length of the lever arm for r in the above equation.

  6. Pincers (tool) - Wikipedia

    en.wikipedia.org/wiki/Pincers_(tool)

    Further use of pincers is the trimming of the edges of horses hoofs. [2] If the pincers have perpendicular cutting edges, the pincers are often called end-nippers or end-cutters. They're often used in jewelry making, for trimming flat wire or cutting off the end of an ear stud. [3]

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    mail.aol.com

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  8. Simple machine - Wikipedia

    en.wikipedia.org/wiki/Simple_machine

    A simple machine is a mechanical device that changes the direction or magnitude of a force. [1] In general, they can be defined as the simplest mechanisms that use mechanical advantage (also called leverage) to multiply force. [2]

  9. Today's Wordle Hint, Answer for #1273 on Friday, December 13 ...

    www.aol.com/todays-wordle-hint-answer-1273...

    If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1273 ahead. Let's start with a few hints.