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  2. Krytron - Wikipedia

    en.wikipedia.org/wiki/Krytron

    The krytron is a cold-cathode gas-filled tube intended for use as a very high-speed switch, somewhat similar to the thyratron. It consists of a sealed glass tube with four electrodes. A small triggering pulse on the grid electrode switches the tube on, allowing a large current to flow between the cathode and anode electrodes.

  3. Transportation Technology Center - Wikipedia

    en.wikipedia.org/wiki/Transportation_Technology...

    A contract was let in 1972 to begin grading the route for the Railroad Test Track (RTT), a planned 14 mi (23 km) high-speed loop operating conventional rail vehicles up to 160 mph (260 km/h); within the high-speed loop, a Dynamics Track sub-loop 9.9 mi (15.9 km) long would investigate passenger and freight train dynamics at slower speeds.

  4. Optical ground wire - Wikipedia

    en.wikipedia.org/wiki/Optical_ground_wire

    The OPGW cable is run between the tops of high-voltage electricity pylons. The conductive part of the cable serves to bond adjacent towers to earth ground, and shields the high-voltage conductors from lightning strikes. The optical fibers within the cable can be used for high-speed transmission of data, either for the electrical utility's own ...

  5. High-Speed Ground Transportation Act of 1965 - Wikipedia

    en.wikipedia.org/wiki/High-Speed_Ground...

    The High-Speed Ground Transportation Act of 1965 (Public Law 89-220, 79 Stat. 893) was the first attempt by the U.S. Congress to foster the growth of high-speed rail in the U.S. The High Speed Ground Transportation Act was introduced immediately following the creation of Japan's first high-speed Shinkansen, or "bullet train" and was signed into ...

  6. Office of High-Speed Ground Transportation - Wikipedia

    en.wikipedia.org/wiki/Office_of_High-Speed...

    The Office of High-Speed Ground Transportation was established [when?] in the United States Department of Commerce (DOC) to administer the requirements of the High Speed Ground Transportation Act of 1965 (Public Law 89-220, 79 Stat. 893) to "undertake research and development in high-speed ground transportation, including, but not limited to, components such as materials, aerodynamics, vehicle ...

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  9. Light switch - Wikipedia

    en.wikipedia.org/wiki/Light_switch

    The toggle light switch was invented in 1916 by William J. Newton. [2] As a component of an electrical wiring or home wiring system, the installation of light switches is regulated by some authority concerned with safety and standards. In different countries the standard dimensions of the wall mounting hardware (boxes, plates, etc.) may differ.

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