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  2. 4 mm scale - Wikipedia

    en.wikipedia.org/wiki/4_mm_scale

    4 mm scale is the most popular [1] model railway scale used in the United Kingdom. The term refers to the use of 4 millimeters on the model equating to a distance of 1 foot (305 mm) on the prototype (1:76.2). It is also used for military modelling. For historical reasons, a number of different standards are employed. [2]

  3. Millimetre - Wikipedia

    en.wikipedia.org/wiki/Millimetre

    Different lengths as in respect to the electromagnetic spectrum, measured by the metre and its derived scales.The microwave is between 1 meter to 1 millimeter.. The millimetre (international spelling; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the International System of Units (SI), equal to one thousandth of a metre, which is the SI base unit of length.

  4. French catheter scale - Wikipedia

    en.wikipedia.org/wiki/French_catheter_scale

    The French scale measures and is proportional to the outer diameter of a catheter, with 1 French (Fr) defined as 1 ⁄ 3 millimeter, making the relationship: 1 mm = 3 Fr. Thus, the outer diameter of a catheter in millimeters can be calculated by dividing the French size by 3. [2]

  5. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    4.689 mm Ships, die-cast cars. Similar to 1:64. 1:64: 4.763 mm Ships, die-cast cars. Matchbox and Hot Wheels use this scale to describe their vehicles, although the actual scale of the individual models varies from 1:55 to beyond 1:100. Same as S Scale. Also called 3 ⁄ 16 in. scale. Known as 25 mm figure scale in wargaming circles. [12] 1:60 ...

  6. Orders of magnitude (length) - Wikipedia

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

    4.000 Mm – length of the Kalahari Desert; 4.350 Mm – length of the Yellow River; 4.600 Mm – width of the Mediterranean Sea; 4.800 Mm – length of the Sahara; 4.800 Mm – widest width of Atlantic Ocean (U.S.-Northern Africa) 5.100 Mm – distance from Dublin to New York as the crow flies; 6.270 Mm – length of the Mississippi-Missouri ...

  7. Photo print sizes - Wikipedia

    en.wikipedia.org/wiki/Photo_print_sizes

    The alternative Super series, denoted SnR, nR Plus or nR+, has an aspect ratio of 3∶2 (or as close as possible) and thus provides a better fit for standard 135 film (35 mm) at sizes of 8 inches or above. 5R is twice the size of a 2R print, 6R twice the size of a 4R print and S8R twice the size of 6R. 4D/6D is a newer size for most consumer ...

  8. Paper size - Wikipedia

    en.wikipedia.org/wiki/Paper_size

    This size is a little larger than ISO A0 (841 mm x 1189 mm), and for a short time, a size called A0a of 1,000 by 1,370 millimetres (39.4 in × 53.9 in) was used in Britain, which was in reality a slightly shorter version of ISO B0 (1414 mm).

  9. Traditional point-size names - Wikipedia

    en.wikipedia.org/wiki/Traditional_point-size_names

    (11) Diamond (4.5 pt, 1.5875 mm). Fonts originally consisted of a set of moveable type letterpunches purchased from a type foundry . As early as 1600, the sizes of these types—their "bodies" [ 1 ] —acquired traditional names in English, French, German, and Dutch, usually from their principal early uses. [ 2 ]