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  2. Starting blocks - Wikipedia

    en.wikipedia.org/wiki/Starting_blocks

    Starting blocks. Pressure-sensitive starting blocks with loudspeakers. A pressure sensor will detect an early start and the loudspeakers provide the runners with the sound from the starter all at the same time. Starting blocks are a device used in the sport of track and field by sprint athletes to brace their feet against at the start of a race ...

  3. Scaffolding - Wikipedia

    en.wikipedia.org/wiki/Scaffolding

    Scaffolding for rehabilitation in Madrid, Spain [1] Scaffolding, also called scaffold or staging, [2] is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other human-made structures. Scaffolds are widely used on site to get access to heights and ...

  4. Hurdling - Wikipedia

    en.wikipedia.org/wiki/Hurdling

    Hurdling is the act of jumping over an obstacle at a high speed or in a sprint. [1] In the early 19th century, hurdlers ran at and jumped over each hurdle (sometimes known as 'burgles'), landing on both feet and checking their forward motion. Today, the dominant step patterns are the 3-step for high hurdles, 7-step for low hurdles, and 15-step ...

  5. Derrick - Wikipedia

    en.wikipedia.org/wiki/Derrick

    Gin pole derrick. A gin pole derrick (also known as standing derrick or pole derrick) is a derrick without a boom and with single tower or mast supported by four guy wires (two side guys, a fore guy and a rear guy). Its guys are so arranged from its top as to permit leaning the mast in any direction. The base of the tower is hinged and the top ...

  6. Occupational safety and health - Wikipedia

    en.wikipedia.org/wiki/Occupational_safety_and_health

    e. Occupational safety and health (OSH) or occupational health and safety (OHS) is a multidisciplinary field concerned with the safety, health, and welfare of people at work (i.e., while performing duties required by one's occupation). OSH is related to the fields of occupational medicine and occupational hygiene [a] and aligns with workplace ...

  7. Airship - Wikipedia

    en.wikipedia.org/wiki/Airship

    3 L-class: L-1, L-2 and L-3 as small training ships, produced in 1938. 1 G-class, built in 1936 for training. 2 TC-class that were older patrol airships designed for land forces, built in 1933. The U.S. Navy acquired both from the United States Army in 1938. Control car (gondola) of the Goodyear ZNPK (K-28) later operated by Goodyear as Puritan VI

  8. Kenny Bednarek - Wikipedia

    en.wikipedia.org/wiki/Kenny_Bednarek

    Kenny Bednarek. Kenneth Bednarek OLY [citation needed] (born October 14, 1998) is an American track and field sprinter from Rice Lake, Wisconsin. He specializes in the 200-meter distance, having won a silver medal at the 2020 Summer Olympics, 2022 World Championships, and at the 2024 Summer Olympics. [3][4]

  9. Sledding - Wikipedia

    en.wikipedia.org/wiki/Sledding

    Sledding, sledging or sleighing is a winter sport typically carried out in a prone or seated position on a vehicle generically known as a sled (North American), a sledge (British), or a sleigh. It is the basis of three Olympic sports: luge, skeleton and bobsledding. When practised on sand, it is known as a form of sandboarding.

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