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  2. Pen spinning - Wikipedia

    en.wikipedia.org/wiki/Pen_spinning

    A combination of pen spinning tricks. Pen spinning is a form of object manipulation that involves the deft manipulation of a writing instrument with hands. Although it is often considered a form of self-entertainment (usually in a school or office setting), multinational competitions and meetings are sometimes held. [1]

  3. Mechanical pencil - Wikipedia

    en.wikipedia.org/wiki/Mechanical_pencil

    A mechanical pencil or clutch pencil is a pencil with a replaceable and mechanically extendable solid pigment core called a "lead" / ˈ l ɛ d /. The lead , often made of graphite , is not bonded to the outer casing, and the user can mechanically extend it as its point is worn away from use.

  4. Pencil sharpener - Wikipedia

    en.wikipedia.org/wiki/Pencil_sharpener

    Mechanical pencils with thin diameter leads dispense the graphite lead progressively during use and thus do not require sharpening; such pencils are sometimes called "self-sharpening". A type of mechanical pencil has a rotating gear mechanism which rotates the lead slightly every time the lead is lifted off the paper, helping to maintain a ...

  5. Ballpoint pen - Wikipedia

    en.wikipedia.org/wiki/Ballpoint_pen

    A ballpoint pen, also known as a biro [1] (British English), ball pen (Hong Kong, Indonesia, Pakistani, Indian and Philippine English), or dot pen [2] (Nepali English and South Asian English), is a pen that dispenses ink (usually in paste form) over a metal ball at its point, i.e., over a "ball point".

  6. Retractable pen - Wikipedia

    en.wikipedia.org/wiki/Retractable_pen

    A pen being clicked. A retractable pen is a type of ink pen that has a spring-loaded ink cartridge which retracts and extends outside a protective housing. By clicking downward on the top of the pen, the tip is extended and locks in place at the bottom of the housing for use.

  7. Samsung Unveils Ballie, a Rolling Robot That Acts as a Home ...

    www.aol.com/news/samsung-unveils-ballie-rolling...

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