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  2. List of unusual units of measurement - Wikipedia

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

    A board foot is a United States and Canadian unit of approximate volume, used for lumber. It is equivalent to 1 inch × 1 foot × 1 foot (144 cu in or 2,360 cm 3). It is also found in the unit of density pounds per board foot. In Australia and New Zealand the terms super foot or superficial foot were formerly used for this unit. The exact ...

  3. Cup (unit) - Wikipedia

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

    The cup is a cooking measure of volume, commonly associated with cooking and serving sizes.In the US, it is traditionally equal to one-half US pint (236.6 ml). Because actual drinking cups may differ greatly from the size of this unit, standard measuring cups may be used, with a metric cup commonly being rounded up to 240 millilitres (legal cup), but 250 ml is also used depending on the ...

  4. Measurement - Wikipedia

    en.wikipedia.org/wiki/Measurement

    For example, the number 12000 has two significant digits, and has implied limits of 11500 and 12500. Additional 0s may be added after a decimal separator to denote a greater exactness, increasing the number of decimals. For example, 1 has implied limits of 0.5 and 1.5 whereas 1.0 has implied limits 0.95 and 1.05.

  5. Keg - Wikipedia

    en.wikipedia.org/wiki/Keg

    Most U.S. brewers sell beer in 1 ⁄ 2 barrels of 15.5 gallons, 1 ⁄ 4 barrels of 7.75 gallons, and 1 ⁄ 6 barrels of 5.17 gallons. Since keg sizes are not standardized, the keg cannot be used as a standard unit of measure for liquid volumes. Despite this, a number of people still refer to kegs as if they were a unit of measure.

  6. Orders of magnitude (length) - Wikipedia

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

    To help compare different orders of magnitude this section lists lengths between 10 −10 and 10 −9 m (100 pm and 1 nm; 1 Å and 10 Å). 100 pm – 1 ångström; 100 pm – covalent radius of sulfur atom [66] 120 pm – van der Waals radius of a neutral hydrogen atom [67] 120 pm – radius of a gold atom; 126 pm – covalent radius of ...

  7. Grumman LLV - Wikipedia

    en.wikipedia.org/wiki/Grumman_LLV

    Table 4-6.13 A number were also ... fuel economy is 17 miles per US gallon (13.8 L/100 km; 20.4 ... in November 1998 to convert two LLVs to ...

  8. List of rivers by discharge - Wikipedia

    en.wikipedia.org/wiki/List_of_rivers_by_discharge

    The average flow rate at the mouth of the Amazon is sufficient to fill more than 83 such pools each second. The estimated global total for all rivers is 1.2 × 10 6 m 3 /s (43 million cu ft/s), [1] of which the Amazon would be approximately 18%.

  9. Ancient Roman units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Roman_units_of...

    square foot 1 pes qu. 0.0876 m 2 0.943 sq ft scrupulum or decempeda quadrata 100 pedes qu. 8.76 m 2 94.3 sq ft the square of the standard 10-foot measuring rod actus simplex 480 pedes qu. 42.1 m 2 453 sq ft 4 × 120 pedes [12] uncia 2,400 pedes qu. 210 m 2 2,260 sq ft clima 3,600 pedes qu. 315 m 2 3,390 sq ft