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The conversion between different SI units for one and the same physical quantity is always through a power of ten. This is why the SI (and metric systems more generally) are called decimal systems of measurement units. [10] The grouping formed by a prefix symbol attached to a unit symbol (e.g. ' km ', ' cm ') constitutes a new inseparable unit ...
Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity. This is also often loosely taken to include replacement of a quantity with a corresponding quantity that describes the same physical property ...
A unit of length refers to any arbitrarily chosen and accepted reference standard for measurement of length. The most common units in modern use are the metric units, used in every country globally. In the United States the U.S. customary units are also in use. British Imperial units are still used for some purposes in the United Kingdom and ...
Geographic coordinate conversion has applications in cartography, surveying, navigation and geographic information systems . In geodesy, geographic coordinate conversion is defined as translation among different coordinate formats or map projections all referenced to the same geodetic datum. [ 1] A geographic coordinate transformation is a ...
3 + 1 ⁄ 3 cm 1.312 in Chinese inch chǐ: 市尺: 1 33 + 1 ⁄ 3 cm 13.12 in Chinese foot zhàng: 市丈: 10 3 + 1 ⁄ 3 m 3.645 yd Chinese yard yǐn: 引: 100 33 + 1 ⁄ 3 m 36.45 yd Chinese chain lǐ: 市里: 1500 500 m 546.8 yd Chinese mile, this li is not the small li above, which has a different character and tone
linje – "line", after 1863 1⁄10 tum, 2.96 mm (0.117 in). Before that, 1⁄12 tum or 2.06 mm. mil – "mile", also lantmil. From 1699, defined as a unity mile of 18 000 alnar or 10.69 km (6.64 mi). The unified mile was meant to define the suitable distance between inns. After the 1889 metric conversion the Swedish mil is defined as exactly ...
Length. For measuring length, the U.S. customary system uses the inch, foot, yard, and mile, which are the only four customary length measurements in everyday use. From 1893, the foot was legally defined as exactly 1200⁄3937 m (approximately 0.304 8006 m ). [13] Since July 1, 1959, the units of length have been defined on the basis of 1 yd ...
Available seat miles. In passenger transportation, available seat miles ( ASM) or available seat kilometers ( ASK) [ 1] is a measure of passenger carrying capacity. It is equal to the number of seats available multiplied by the number of miles or kilometers traveled by a vehicle. In the airline industry an available seat mile is the fundamental ...