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  2. Craig Newmark - Wikipedia

    en.wikipedia.org/wiki/Craig_Newmark

    In 2000, Newmark stepped down as chief executive officer and handed off the role to Jim Buckmaster. Since then, Newmark has not been involved in the "day-to-day operations" of Craigslist. [ 17 ] As of 2018, he continued to respond to Craigslist customer service inquiries, primarily dealing with spammers and scammers .

  3. Adapter (rocketry) - Wikipedia

    en.wikipedia.org/wiki/Adapter_(rocketry)

    Interstage of the UGM-73 Poseidon missile. First stage is on the right, separated second stage - on the left. In rocketry, an adapter is a hollow cylindrical [1] or conical segment [2] which provides a sound aerodynamic and structural connection, either between rocket stages (oftern referred to as an interstage) or between a spacecraft and the top rocket stage (referred to as a payload adapter).

  4. Picatinny rail - Wikipedia

    en.wikipedia.org/wiki/Picatinny_rail

    The 1913 rail (MIL-STD-1913 rail) is an American rail integration system designed by Richard Swan [1] that provides a mounting platform for firearm accessories. It forms part of the NATO standard STANAG 2324 rail. It was originally used for mounting of telescopic sights atop the receivers of larger caliber rifles.

  5. Zero speed switch - Wikipedia

    en.wikipedia.org/wiki/Zero_speed_switch

    Zero speed switches (ZSS) also known as Speed Actuating Sensing Switches [1] are used to detect whether a rotating shaft is turning (even at very slow speeds) [2] in various machines, conveyors, power plants, and in industries involving the production of cement, sugar, textiles, paper, etc. Zero speed switches mainly use electromechanical, electronic, or magnetic proximity technologies.

  6. Neural top–down control of physiology - Wikipedia

    en.wikipedia.org/wiki/Neural_topdown_control...

    Neural topdown control of physiology concerns the direct regulation by the brain of physiological functions (in addition to smooth muscle and glandular ones). Cellular functions include the immune system’s production of T-lymphocytes and antibodies, and nonimmune related homeostatic functions such as liver gluconeogenesis, sodium reabsorption, osmoregulation, and brown adipose tissue ...

  7. Jiuzhang - Wikipedia

    en.wikipedia.org/wiki/Jiuzhang

    Jiuzhang may refer to: . Jiuzhang suanshu, or The Nine Chapters on the Mathematical Art, Chinese mathematics book, composed from the 10th–2nd century BCE; Shu shu Jiuzhang, or Mathematical Treatise in Nine Sections, 13th century Chinese mathematical text by Qin Jiushao