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An adult human foot is about 28 cm (11 in) long. The decimetre (SI symbol: dm) is a unit of length in the metric system equal to 10 −1 metres ( 1 / 10 m = 0.1 m). To help compare different orders of magnitude, this section lists lengths between 10 centimeters and 100 centimeters (10 −1 meter and 1 meter).
foot, metric (Mesures usuelles) (H) ≡ 1 ⁄ 3 m ≡ 0. 3 m foot (International) ft ≡ 0.3048 m ≡ 1 ⁄ 3 yd ≡ 12 inches ≡ 0.3048 m foot (Sear's) (H) ft (Sear) ≈ 0.304 799 47 m: foot (US Survey) ft (US) ≡ 1200 ⁄ 3937 m [5] ≈ 0.304 800 610 m: french; charriere: F ≡ 1 ⁄ 3 mm = 0. 3 × 10 −3 m furlong: fur ≡ 10 chains = 660 ...
The Egyptian equivalent of the foot—a measure of four palms or 16 digits—was known as the djeser and has been reconstructed as about 30 cm (11.8 in). The Greek foot (πούς, pous) had a length of 1 / 600 of a stadion, [12] one stadion being about 181.2 m (594 ft); [13] therefore a foot was, at the time, about 302 mm (11.9 in). Its ...
1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge The Hyundai Rotem EMU (also known as R-Train or 1141B ) ( Chinese : 港鐵東鐵綫現代列車 ) is a current model of heavy rail electric multiple units used on the Mass Transit Railway in Hong Kong .
M2 4.2-inch mortars in action on Utah Beach, 1944 A crew of an M2 mortar fires on North Korean positions in 1953 A 4.2-inch mortar in Korea, 1952.. The M2 4.2-inch mortar was a U.S. rifled 4.2-inch (107 mm) mortar used during the Second World War, the Korean War, and the Vietnam War.
This differs from many older systems in which the ratio of different units varied. For example, 12 inches is one foot, but the larger unit in the same system, the mile is not a power of 12 feet. It is 5,280 feet – which is hard to remember for many. [5]: 17
In 2020, the National Institute of Standards and Technology announced that the U.S. survey foot would "be phased out" on 1 January 2023 and be superseded by the international foot (also known as the foot) equal to 0.3048 metres exactly, for all further applications. [48] This implies that the survey inch was replaced by the international inch.
7.5 m 2 (81 sq ft) (Mark III) Racing; RYA PN: 1250 [2] Paralympics class [edit on Wikidata] The International 2.4mR is a one-person keelboat. The class is a ...