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  2. Cubit - Wikipedia

    en.wikipedia.org/wiki/Cubit

    A variety of more local or specific cubit measures were developed over time: the "small" Hashemite cubit of 60.05 cm (23 + 21 ⁄ 32 in), also known as the cubit of Bilal (al-dhirāʿ al-Bilāliyya, named after the 8th-century Basran qāḍī Bilal ibn Abi Burda); the Egyptian carpenter's cubit (al-dhirāʿ bi'l-najjāri) or architect's cubit ...

  3. Span (unit) - Wikipedia

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

    A span is the distance measured by a human hand, from the tip of the thumb to the tip of the little finger. In ancient times, a span was considered to be half a cubit. Sometimes the distinction is made between the great span or full span (thumb to little finger) and little span or short span (thumb to index finger, or index finger to little ...

  4. List of obsolete units of measurement - Wikipedia

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

    Bamboo – also known as the Burmese league; Barleycorn – one-third of an inch. Cana – a unit of length used in the former Crown of Aragon, at least in Catalonia. It is around the same value as the vara of Aragon, Spain, and Portugal. [3] Cubit [4] Ell; Girah; Guz; Hat'h; Jow; Lachter – a unit of length once used in the mining industry in ...

  5. Ancient Greek units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Greek_units_of...

    span of all fingers pous πούς: 16 daktyloi 308.2 mm (12.13 in) foot: pygmē πυγμή: 18 daktyloi 346.8 mm (13.65 in) forearm pygōn πυγών: 20 daktyloi 385.3 mm (15.17 in) distance from elbow to fist pēchys πῆχυς: 24 daktyloi 462.3 mm (18.20 in) cubit: Except where noted, based on Smith (1851). [3] Metric equivalents are ...

  6. List of physical quantities - Wikipedia

    en.wikipedia.org/wiki/List_of_physical_quantities

    Change of acceleration per unit time: the third time derivative of position m/s 3: L T −3: vector Jounce (or snap) s →: Change of jerk per unit time: the fourth time derivative of position m/s 4: L T −4: vector Magnetic field strength: H: Strength of a magnetic field A/m L −1 I: vector field Magnetic flux density: B: Measure for the ...

  7. List of human-based units of measurement - Wikipedia

    en.wikipedia.org/wiki/List_of_human-based_units...

    Parasang - the distance an infantryman could march in a predefined period of time; Pygmē - distance from elbow to base of fingers; Sazhen - Russian fathom; Shaftment - width of the fist and outstretched thumb; Span - width of a human hand, from the tip of the thumb to the tip of the little finger; Spithamē - Ancient Greek span; Zeret ...

  8. Ancient Arabic units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Arabic_units_of...

    cubit: traditionally 2 Arabic feet, later 1 + 1 ⁄ 2 Arabic feet Cubit قامة: fathom: 6 Arabic feet ~1.92 m A pace-length Qaṣbah قصبة: 12 Arabic feet ~3.84 m A cane-length Seir: stade: 600 Arabic feet ~192 m Ghalwah: 720 Arabic feet ~230.4 m Parasang فرسخ: parasang or league: 18,000 Arabic feet ~5.76 km Barid بريد: 4 parasang ...

  9. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    The Jiffy is the amount of time light takes to travel one femtometre (about the diameter of a nucleon). The Planck time is the time that light takes to travel one Planck length. The TU (for time unit) is a unit of time defined as 1024 μs for use in engineering. The svedberg is a time unit used for sedimentation rates (usually

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