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  2. Brain size - Wikipedia

    en.wikipedia.org/wiki/Brain_size

    A large scientific collection of brain endocasts and measurements of cranial capacity has been compiled by Holloway. [80] Examples of cranial capacity. Apes. Orangutans: 275–500 cm 3 (16.8–30.5 cu in) Chimpanzees: 275–500 cm 3 (16.8–30.5 cu in) Gorillas: 340–752 cm 3 (20.7–45.9 cu in) Hominids. Anatomically-modern human: average ...

  3. Orders of magnitude (mass) - Wikipedia

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

    The gram (10 −3 kg) is an SI derived unit of mass. However, the names of all SI mass units are based on gram, rather than on kilogram; thus 10 3 kg is a megagram (10 6 g), not a *kilokilogram. The tonne (t) is an SI-compatible unit of mass equal to a megagram (Mg), or 10 3 kg.

  4. Volume - Wikipedia

    en.wikipedia.org/wiki/Volume

    On 7 April 1795, the metric system was formally defined in French law using six units. Three of these are related to volume: the stère (1 m 3) for volume of firewood; the litre (1 dm 3) for volumes of liquid; and the gramme, for mass—defined as the mass of one cubic centimetre of water at the temperature of melting ice. [10]

  5. Density - Wikipedia

    en.wikipedia.org/wiki/Density

    The Imperial gallon was based on the concept that an Imperial fluid ounce of water would have a mass of one Avoirdupois ounce, and indeed 1 g/cm 3 ≈ 1.00224129 ounces per Imperial fluid ounce = 10.0224129 pounds per Imperial gallon.

  6. Irish units of measurement - Wikipedia

    en.wikipedia.org/wiki/Irish_units_of_measurement

    0.7 cm 1/4 inch ordlach: thumb-length 1 ⁄ 12: 2.1 cm 0.8 in bas: palm 1 ⁄ 3: 8.4 cm 3.3 in dorn: fist 5 ⁄ 12 or 1 ⁄ 2: 10.4 or 12.5 cm 4 or 5 in troighid: foot 1 25 cm 9.9 in céim: step 2.5 62.5 cm 2 ft 1 in deiscéim[m] double-step 6 1.5 m 4 ft 11 in fertach: rod 12 3 m 9 ft 10 in forrach: 144 36 m 39.4 yards

  7. Hundredweight - Wikipedia

    en.wikipedia.org/wiki/Hundredweight

    The hundredweight has had many values. In England in around 1300, different hundreds (centum in Medieval Latin) were defined.The Weights and Measures Act 1835 formally established the present imperial hundredweight of 112 pounds (50.80 kg).

  8. Orders of magnitude (length) - Wikipedia

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

    13 cm = 1.3 dm – body length of a Goliath birdeater; 15 cm = 1.5 dm – approximate size of largest beetle species; 19 cm = 1.9 dm – length of a banana; 26.3 cm = 2.6 dm – length of average male human foot; 29.98 cm = 2.998 dm – distance light in vacuum travels in one nanosecond; 30 cm = 3.0 dm – maximum leg length of a Goliath birdeater

  9. Litre - Wikipedia

    en.wikipedia.org/wiki/Litre

    It is equal to 1 cubic decimetre (dm 3), 1000 cubic centimetres (cm 3) or 0.001 cubic metres (m 3). A cubic decimetre (or litre) occupies a volume of 10 cm × 10 cm × 10 cm (see figure) and is thus equal to one-thousandth of a cubic metre. The original French metric system used the litre as a base unit.