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  2. List of metric units - Wikipedia

    en.wikipedia.org/wiki/List_of_metric_units

    The angstrom (symbol Å) is a unit of distance used in chemistry and atomic physics equal to 100 pm. The micron (μ) is a unit of distance equal to one micrometre (1 μm). The basic module (M) is a unit of distance equal to one hundred millimetres (100 mm). The myriametre (mym) is a unit of distance equal to ten kilometres (10 km).

  3. List of obsolete units of measurement - Wikipedia

    en.wikipedia.org/wiki/List_of_obsolete_units_of...

    Bahar – a unit of length in Iran, and was a unit of mass in Oman; Batman – mostly a unit of mass, but sometimes a unit of area; Demal – unit of concentration; Dimi (metric prefix) – a discontinued non-SI metric prefix for 10 −4 [7] Einstein – unit of energy, and a unit of amount of substance; Fanega – a unit of dry volume, and a ...

  4. Unit of length - Wikipedia

    en.wikipedia.org/wiki/Unit_of_length

    The basic unit of length in the imperial and U.S. customary systems is the yard, defined as exactly 0.9144 m by international treaty in 1959. [2] [10] Common imperial units and U.S. customary units of length include: [11] thou or mil (1 ⁄ 1000 of an inch) inch (25.4 mm) foot (12 inches, 0.3048 m) yard (3 feet, 0.9144 m)

  5. Metric prefix - Wikipedia

    en.wikipedia.org/wiki/Metric_prefix

    The units kilogram, gram, milligram, microgram, ... The stated distance is 360 km; the decimal mark in Germany is a comma. Obsolete metric prefixes

  6. List of physical quantities - Wikipedia

    en.wikipedia.org/wiki/List_of_physical_quantities

    Perpendicular distance between repeating units of a wave m L: Wavenumber: k: Repetency or spatial frequency: the number of cycles per unit distance m −1: L −1: scalar Work: W: Transferred energy joule (J) L 2 M T −2: scalar Young's modulus: E: Ratio of stress to strain pascal (Pa = N/m 2) L −1 M T −2: scalar; assumes isotropic linear ...

  7. Orders of magnitude (length) - Wikipedia

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

    The stated distance is 360 km (220 mi); the comma is the decimal separator in Germany. 10,000 meters; About 6.2 miles; 1 mil (the Scandinavian mile), now standardized as 10 km: 1 mil, the unit of measure commonly used in Norway and Sweden [151] used to be 11,295 m in Norway and 10,688 m in Sweden.

  8. List of unusual units of measurement - Wikipedia

    en.wikipedia.org/wiki/List_of_unusual_units_of...

    This was an official unit of measurement in South Africa until the 1970s, and was defined in November 2007 by the South African Law Society as having a conversion factor of 1 morgen = 0.856 532 hectares. [28] This unit of measure was also used in the Dutch colonial province of New Netherland (later New York and parts of New England). [29] [30]

  9. International System of Units - Wikipedia

    en.wikipedia.org/wiki/International_System_of_Units

    The distance travelled by light in vacuum in ⁠ 1 / 299 792 458 ⁠ second. kilogram [n 1] kg mass: The kilogram is defined by setting the Planck constant h to 6.626 070 15 × 10 −34 J⋅s (J = kg⋅m 2 ⋅s −2), given the definitions of the metre and the second. [2] ampere: A