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  2. VertiBird - Wikipedia

    en.wikipedia.org/wiki/VertiBird

    The Mattel VertiBird helicopter flies around a central base containing an electric motor, spring lift assist, pitch control, batteries, and a throttle.A 21-inch arm with pitch control rod and the spindle that transfers the power to helicopter via drive springs and drive rod, is connected from the central base to the helicopter.

  3. Desmodromic valve - Wikipedia

    en.wikipedia.org/wiki/Desmodromic_valve

    The common valve spring system is satisfactory for traditional mass-produced engines that do not rev highly and are of a design that requires low maintenance. [1] At the period of initial desmodromic development, valve springs were a major limitation on engine performance because they would break from metal fatigue.

  4. Jempol District - Wikipedia

    en.wikipedia.org/wiki/Jempol_District

    The Jempol District (Negeri Sembilan Malay: Jompo; Jawi: جمڤول) is the largest district in the Malaysian state of Negeri Sembilan. The district borders Jelebu District to the northwest, Kuala Pilah District to the west, Tampin District to the south, Bera District , Pahang to the northeast and Segamat District , Johor to the east.

  5. Category:Jempol District - Wikipedia

    en.wikipedia.org/wiki/Category:Jempol_District

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  6. Valve actuator - Wikipedia

    en.wikipedia.org/wiki/Valve_actuator

    Air pressure acts on a piston or bellows diaphragm creating linear force on a valve stem. Alternatively, a quarter-turn vane-type actuator produces torque to provide rotary motion to operate a quarter-turn valve. A pneumatic actuator may be arranged to be spring-closed or spring-opened, with air pressure overcoming the spring to provide movement.

  7. MLB to test robo-ump challenge system at spring training ...

    www.aol.com/sports/mlb-test-robo-ump-challenge...

    MLB to test robo-ump challenge system at spring training, could implement it league-wide in 2026. Jack Baer. November 21, 2024 at 6:30 PM.

  8. Walmart employees testing body cameras at some stores for ...

    www.aol.com/walmart-employees-testing-body...

    Walmart has become the most recent retailer known to have some store employees wear body cameras. The nation's largest retailer has some employees taking part in a body camera pilot program ...

  9. American Airlines rolls out new technology that would crack ...

    www.aol.com/news/american-airlines-testing...

    Last month, American Airlines became the first airline to test a new technology to help crack down on passengers who attempt to cut the line. And now, ahead of the busiest travel day of the year ...