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  2. United States customary units - Wikipedia

    en.wikipedia.org/wiki/United_States_customary_units

    Troy weight, avoirdupois weight, and apothecaries' weight are all built from the same basic unit, the grain, which is the same in all three systems. However, while each system has some overlap in the names of their units of measure (all have ounces and pounds), the relationship between the grain and these other units within each system varies.

  3. Gasoline gallon equivalent - Wikipedia

    en.wikipedia.org/wiki/Gasoline_gallon_equivalent

    The fuel consumption is an equivalent measure for cars sold outside the United States, typically measured in litres per 100 km traveled; in general, the fuel consumption and miles per gallon would be reciprocals with appropriate conversion factors, but because different countries use different driving cycles to measure fuel consumption, fuel ...

  4. Metrication in Canada - Wikipedia

    en.wikipedia.org/wiki/Metrication_in_Canada

    When dealing with the US oat markets though, special attention must be paid to the definition of bushel weight because the US uses a Winchester bushel (35.239 litres). [29] In livestock auction markets, cattle are sold in dollars per short hundredweight (cwt; 100 lbs; 45.36 kg), whereas hogs are sold in dollars per hundred kilograms. [citation ...

  5. Cooking weights and measures - Wikipedia

    en.wikipedia.org/wiki/Cooking_weights_and_measures

    Weight is measured in ounces and pounds (avoirdupois) as in the U.S. Volume is measured in imperial gallons, quarts, pints, fluid ounces, fluid drachms, and minims. The imperial gallon was originally defined as 10 pounds (4.5359 kg) of water in 1824, and refined as exactly 4.54609 litres in 1985.

  6. Gauge (firearms) - Wikipedia

    en.wikipedia.org/wiki/Gauge_(firearms)

    The term is related to the measurement of cannons, which were also measured by the weight of their iron round shot; an eight-pounder would fire an 8-pound (3.6 kg) ball. Therefore, a 12 gauge is larger than a 16 gauge. Due to problems defining a pound, and to get pure lead, the Gun Barrel Proof Act 1855 defined a gauge as a list of defined ...

  7. Fuel economy in aircraft - Wikipedia

    en.wikipedia.org/wiki/Fuel_economy_in_aircraft

    The payload fraction of modern twin-aisle aircraft is 18.4% to 20.8% of their maximum take-off weight, while single-aisle airliners are between 24.9% and 27.7%. An aircraft weight can be reduced with light-weight materials such as titanium, carbon fiber and other composite plastics if the expense can be recouped over the aircraft's lifetime.

  8. Neoplan Megaliner - Wikipedia

    en.wikipedia.org/wiki/Neoplan_Megaliner

    The Neoplan Megaliner was a quad-axle double-decker luxury coach built by the German coach manufacturer Neoplan Bus GmbH between 1983 and 2000. Primarily intended for the European and Latin American market as the larger counterpart of the Neoplan Skyliner, it was built on lessons learnt from the experimental Neoplan Jumbocruiser.

  9. Shape of the atomic nucleus - Wikipedia

    en.wikipedia.org/wiki/Shape_of_the_atomic_nucleus

    The atomic nucleus is composed of protons and neutrons (collectively called nucleons). In the Standard model of particle physics, nucleons are in the group called hadrons, the smallest known particles in the universe to have measurable size and shape. [1]