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  2. List of world records in speed skating - Wikipedia

    en.wikipedia.org/wiki/List_of_world_records_in...

    For comparison, the fastest known 400m lap was skated by Pavel Kulizhnikov on 9 March 2019 in Salt Lake City during his 500-meter world record race, with a lap time of 23.94 seconds and an average speed of 60.15 km/h (37.38 mph).

  3. Union Pacific Big Boy - Wikipedia

    en.wikipedia.org/wiki/Union_Pacific_Big_Boy

    They were built with a wide margin of reliability and safety, and normally operated well below 60 miles per hour (100 km/h) in freight service. Peak drawbar horsepower was reached at about 41 mph (66 km/h). [11] The maximum drawbar pull measured during 1943 tests was 138,200 lbf (615 kN) while starting a train. [11]

  4. 7.5 cm KwK 37 - Wikipedia

    en.wikipedia.org/wiki/7.5_cm_KwK_37

    The 7.5 cm KwK 37 L/24 (7.5 cm Kampfwagenkanone 37 L/24) was a short-barreled, howitzer-like German 75 mm tank gun used during World War II, primarily as the main armament of the early Panzer IV tank.