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In radar -related subjects and in JTIDS, a data mile is a unit of distance equal to 6000 feet (1.8288 kilometres or 0.987 nautical miles ). An international mile is exactly 0.88 of a data mile. The speed of light is 983571056 ft/s, or about one foot per nanosecond. If it were exactly one foot per nanosecond, and a target was one data mile away ...
The mile, sometimes the international mile or statute mile to distinguish it from other miles, is a British imperial unit and United States customary unit of distance; both are based on the older English unit of length equal to 5,280 English feet, or 1,760 yards. The statute mile was standardised between the Commonwealth of Nations and the ...
Metrication in the United States is the process of introducing the International System of Units, also known as the metric system, to measure physical quantities in the U.S. Although the U.S. has officially adopted the metric system since 1866, the use of customary units derived from the imperial system is still widespread. Learn more about the history, challenges and benefits of metrication ...
A nautical mile is a unit of length used in air, marine, and space navigation, and for the definition of territorial waters. Historically, it was defined as the meridian arc length corresponding to one minute ( 1 / 60 of a degree) of latitude at the equator, so that Earth's polar circumference is very near to 21,600 nautical miles (that is 60 minutes × 360 degrees).
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 ...
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 ...
A German geographic mile ( geographische Meile) is defined as 1⁄15 equatorial degrees, equal to 7,420.54 m (24,345.6 ft ). A common German mile, land mile, or post mile ( Gemeine deutsche Meile, Landmeile, Postmeile) was defined in various ways at different places and different times. After the introduction of the metric system in the 19th ...
1.9 mi. 656 ft. The kos ( Hindi: कोस ), also spelled coss, koss, kosh, koh (in Punjabi), krosh, and krosha, is a unit of measurement which is derived from a Sanskrit term, क्रोश krośa, which means a 'call', as the unit was supposed to represent the distance at which another human could be heard. It is an ancient Indian ...