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100 meters – spacing of location marker posts on British motorways; 110 meters – height of the Saturn V; 122 meters – height of the Starship, the tallest rocket currently under development by SpaceX; 138.8 meters – height of the Great Pyramid of Giza (Pyramid of Cheops) 139 meters – height of the world's tallest roller coaster, Kingda ...
Metrication occurred in 1976, so all subsequent championships were at the metric distance. Hand timing was used until 1973, while starting in 1974 fully automatic timing was used. The height of the hurdles and the spacing between the two races are identical – 110 meters is 29 centimetres (11 in) longer from the last hurdle to the finish line. Key
The basic unit of length in the imperial and U.S. customary systems is the yard, defined as exactly 0.9144 m by international treaty in 1959. [2] [5] Common imperial units and U.S. customary units of length include: [6] thou or mil (1 ⁄ 1000 of an inch) inch (25.4 mm) foot (12 inches, 0.3048 m) yard (3 feet, 0.9144 m)
The template is intended for conversion of heights specified in either metres or in feet and inches. Template parameters [Edit template data] Parameter Description Type Status Metres m metre metres meter meters The height in metres. Do not use if feet and inches are specified. Number optional Centimetres cm centimetre centimetres centimeter centimeters The height in centimetres. Do not use if ...
The 100 metres hurdles, or 100-meter hurdles, is a track and field event run mainly by women (the male counterpart is the 110 metres hurdles). For the race, ten hurdles of a height of 33 inches (83.8 cm) are placed along a straight course of 100 metres (109.36 yd).
The 100-inch (2.5 m) Hooker telescope located at Mount Wilson Observatory, California, was completed in 1917, and was the world's largest telescope until 1949. It is one of the most famous telescopes in observational astronomy of the 20th century.
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The next lower position, 33 inches (83.8 cm) is called the "women's high" [12] used for women's short hurdle races. The lowest position, called the "low hurdle" 30 inches (76.2 cm) is used for women's long hurdles plus many youth and veteran races. Some races call for 27 inches or 68.6 centimetres for youth or veteran events. [13]