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  2. Kos (unit) - Wikipedia

    en.wikipedia.org/wiki/Kos_(unit)

    Kos may also refer to roughly 1.8 kilometres (1.1 mi) [6] Arthashastra standard unit of kos or krosha is equal to 3075 metres in SI units and 1.91 miles in imperial units. [ 7 ] [ dubious – discuss ]

  3. Units of measurement in transportation - Wikipedia

    en.wikipedia.org/wiki/Units_of_measurement_in...

    kilometre (km) or kilometer is a metric unit used, outside the US, to measure the length of a journey; the international statute mile (mi) is used in the US; 1 mi = 1.609344 km; nautical mile is rarely used to derive units of transportation quantity.

  4. Unit of length - Wikipedia

    en.wikipedia.org/wiki/Unit_of_length

    Earth radius R 🜨 ≈ 6,371 km [9] Lunar distance LD ≈ 384 402 km. [10] Average distance between the center of Earth and the center of the Moon. astronomical unit au. Defined as 149 597 870 700 m. [11] Approximately the distance between the Earth and Sun. light-year ly ≈ 9 460 730 472 580.8 km. The distance that light travels in a vacuum ...

  5. Milestone - Wikipedia

    en.wikipedia.org/wiki/Milestone

    It can represent either a distance of approximately 1.8 kilometres (1.1 mi) or 3.2 kilometres (2.0 mi). Minar is a Persian word for tower. Abul Fazl recorded in Akbar Nama that in the year 1575 AD, Akbar issued an order that at every Kos on the way from Agra to Ajmer, a pillar or a minar should be erected for the comfort of the travelers.

  6. Distance - Wikipedia

    en.wikipedia.org/wiki/Distance

    A metric or distance function is a function d which takes pairs of points or objects to real numbers and satisfies the following rules: The distance between an object and itself is always zero. The distance between distinct objects is always positive. Distance is symmetric: the distance from x to y is always the same as the distance from y to x.

  7. Mile - Wikipedia

    en.wikipedia.org/wiki/Mile

    The radar mile is a unit of time (in the same way that the light year is a unit of distance), equal to the time required for a radar pulse to travel a distance of two miles (one mile each way). Thus, the radar statute mile is 10.8 μs and the radar nautical mile is 12.4 μs.

  8. Geographical distance - Wikipedia

    en.wikipedia.org/wiki/Geographical_distance

    Geographical distance or geodetic distance is the distance measured along the surface of the Earth, or the shortest arch length. The formulae in this article calculate distances between points which are defined by geographical coordinates in terms of latitude and longitude. This distance is an element in solving the second (inverse) geodetic ...

  9. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    1.609 km – 1 statute mile; 1.852 km – 1 nautical mile, equal to 1 arcminute of latitude at the surface of the Earth [140] 1.991 km – span of the Akashi Kaikyō Bridge [141] 2.309 km – axial length of the Three Gorges Dam, the largest dam in the world located in China [34]