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The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of 1 / 299 792 458 of a second, where the second is defined by a hyperfine transition frequency of caesium.
The French lieue — at different times — existed in several variants, namely 10,000, 12,000, 13,200 and 14,400 French feet, about 3.25 to 4.68 km (2.02 to 2.91 miles). It was used along with the metric system for a while, but is long discontinued.
The kilometre (SI symbol: km) is a unit of length in the metric system equal to 1 000 meters (10 3 m). To help compare different orders of magnitude, this section lists lengths between 1 kilometer and 10 kilometers (10 3 and 10 4 meters).
The 3000 metres or 3000-metre run is a track running event, also commonly known as the "3K" or "3K run", where 7.5 laps are run around an outdoor 400 m track, or 15 laps around a 200 m indoor track.
Also known as the metric mile, this is a premier middle-distance race, covering three and three-quarters laps around a standard Olympic-sized track. In recent years, races over this distance have become more of a prolonged sprint, with each lap averaging 55 seconds for the world record performance by Hicham El Guerrouj of Morocco : 3:26.00 on ...
Efforts to standardise measurements can be traced back at least as far as the 10th century Saxon king Edgar in England. [8]: 73 These efforts continued in the United Kingdom culminating in the Imperial system of measurement established by the Weights and Measures Act 1824. British exploration and colonisation and trade spread these standard but ...
In Japan, the standard measure for walking distance is 80 meters for 1 minute of walking time. It is the standard used in real estate listings. It is the standard used in real estate listings. For example, if a building is a 10-minute walk from a particular park or train station, it is 800 meters away.
The 3000 metres steeplechase or 3000-meter steeplechase (usually abbreviated as 3000m SC) is the most common distance for the steeplechase in track and field. It is an obstacle race over the distance of the 3000 metres , which derives its name from the horse racing steeplechase .