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  2. Comparison of the imperial and US customary measurement ...

    en.wikipedia.org/wiki/Comparison_of_the_imperial...

    [a] Originally defined as the volume of 10 pounds (4.54 kg) of distilled water (under certain conditions), [b] then redefined by the Weights and Measures Act 1985 to be exactly 4.546 09 L (277.4 cu in), the imperial gallon is close in size to the old ale gallon.

  3. Free recoil - Wikipedia

    en.wikipedia.org/wiki/Free_recoil

    Free recoil / Frecoil is a vernacular term or jargon for recoil energy of a firearm not supported from behind. Free recoil denotes the translational kinetic energy (E t) imparted to the shooter of a small arm when discharged and is expressed in joules (J), or foot-pound force (ft·lb f) for non-SI units of measure.

  4. Imperial units - Wikipedia

    en.wikipedia.org/wiki/Imperial_units

    The former Weights and Measures office in Seven Sisters, London (590 Seven Sisters Road). The imperial system of units, imperial system or imperial units (also known as British Imperial [1] or Exchequer Standards of 1826) is the system of units first defined in the British Weights and Measures Act 1824 and continued to be developed through a series of Weights and Measures Acts and amendments.

  5. TNT equivalent - Wikipedia

    en.wikipedia.org/wiki/TNT_equivalent

    TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion.The ton of TNT is a unit of energy defined by convention to be 4.184 gigajoules (1 gigacalorie), [1] which is the approximate energy released in the detonation of a metric ton (1,000 kilograms) of TNT.

  6. Pound sterling - Wikipedia

    en.wikipedia.org/wiki/Pound_sterling

    The pound is the main unit of ... Value of £1 sterling in grams and troy ounces Year Silver Gold Grams Troy ounces Grams Troy ounces 800: 349.9 g 11.25 ozt ...

  7. Fluid ounce - Wikipedia

    en.wikipedia.org/wiki/Fluid_ounce

    For example, the 364-pound woolsack (165 kg) had a 14-pound allowance (6.4 kg) for the weight of the sack and other packaging materials. [ 5 ] In 1824, the British Parliament defined the imperial gallon as the volume of ten pounds of water at standard temperature. [ 2 ]

  8. Penny (Canadian coin) - Wikipedia

    en.wikipedia.org/wiki/Penny_(Canadian_coin)

    According to the Royal Canadian Mint, the official term for the coin is the one-cent piece, but in practice the terms penny and cent predominate. [citation needed] Penny was likely readily adopted because the previous coinage in Canada (up to 1858) was the British monetary system, where Canada used British pounds, shillings, and pence as coinage alongside U.S. decimal coins.

  9. South African units of measurement - Wikipedia

    en.wikipedia.org/wiki/South_African_units_of...

    The Rhynland rood (Rijnlandse roede) was a standard Dutch measurement.It was changed in 1859 to the "Cape Foot" due to a drift in standards. 1 Rhynland foot (Rijnlandse voet) = 12 Rhynland inches (Rijnlandse duim) = 1.030 English feet.