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  2. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    Original nominal 25 mm figure scale; though a 6-foot human in 1:87 is closer to 21 mm. 1:82: 3.717 mm An intermediate scale (HO/OO) intended to apply to both HO and OO scale train sets. Also used for some military models 1:80: 3.810 mm HOj scale. Very close to wargaming 20 mm figure scale (20 mm is actually 1:80.5). [10] 1:76.2: 4 mm: Model ...

  3. Standard-gauge railway - Wikipedia

    en.wikipedia.org/wiki/Standard-gauge_railway

    New lines and extensions to the MTR after 2014 use 1,435 mm (4 ft 8 + 12 in) gauge, including the South Island line, Kwun Tong line extension and West Island line. The Bucharest Metro uses 1,432 mm (4 ft 8 + 3 ⁄ 8 in) gauge. The Washington Metro uses 4 ft 8 + 14 in (1,429 mm), 14 in (6 mm) narrower than standard gauge.

  4. Orders of magnitude (length) - Wikipedia

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

    1.75 m – (5 feet 8 inches) – height of average U.S. male human as of 2002 (source: U.S. CDC as per female above) 2.4 m – wingspan of a mute swan; 2.5 m – height of a sunflower; 2.7 m – length of a leatherback sea turtle, the largest living turtle; 2.72 m – (8 feet 11 inches) – tallest-known human (Robert Wadlow) [31]

  5. 2 mm scale - Wikipedia

    en.wikipedia.org/wiki/2_mm_scale

    2 mm scale, often 2 mm finescale is a specification used for railway modelling, [1] largely for modelling British railway prototypes. [citation needed] It uses a scale of 2 mm on the model to 1 foot on the prototype, which scales out to 1:152. [1] The track gauge used to represent prototype standard gauge (4 feet 8 + 12 inches) is 9.42 mm ...

  6. Broad-gauge railway - Wikipedia

    en.wikipedia.org/wiki/Broad-gauge_railway

    A broad-gauge railway is a railway with a track gauge (the distance between the rails) broader than the 1,435 mm (4 ft 8 + 12 in) used by standard-gauge railways.. Broad gauge of 1,520 mm (4 ft 11 + 27 ⁄ 32 in), more known as Russian gauge, is the dominant track gauge in former Soviet Union countries (CIS states, Baltic states, Georgia, Ukraine) and Mongolia.

  7. Foot (unit) - Wikipedia

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

    The Greek foot (πούς, pous) had a length of ⁠ 1 / 600 ⁠ of a stadion, [12] one stadion being about 181.2 m (594 ft); [13] therefore a foot was, at the time, about 302 mm (11.9 in). Its exact size varied from city to city and could range between 270 mm (10.6 in) and 350 mm (13.8 in), but lengths used for temple construction appear to ...

  8. U.S. standard clothing size - Wikipedia

    en.wikipedia.org/wiki/U.S._standard_clothing_size

    With the average American woman's height (20 years and older) at about 5 ft 4 in (162.1 cm) (Department of Health 2012), both standard and catalog size ranges attempt to address a variety of weights or builds as well as providing for the "shorter-than-average" height woman with "petite" and "half-sizes". However "taller-than-average" women may ...

  9. Minimum railway curve radius - Wikipedia

    en.wikipedia.org/wiki/Minimum_railway_curve_radius

    90-foot (27.43 m) radii on the elevated 4 ft 8 + 12 in (1,435 mm) standard gauge Chicago 'L'. There is no room for longer radii at this cross junction in the northwest corner of the Loop . The minimum railway curve radius is the shortest allowable design radius for the centerline of railway tracks under a particular set of conditions.