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  2. 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.

  3. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    Popular scale for period ship plans — 1 inch = 3 feet. 1:35: 8.709 mm: Military models: The most popular scale for military vehicles and figures. Used heavily in models of armoured vehicles. It was originally conceived by Tamiya for convenience of fitting motorised parts and batteries. Corresponds well with 54mm figures. 1:34: 8.965 mm

  4. French catheter scale - Wikipedia

    en.wikipedia.org/wiki/French_catheter_scale

    [1] The Charrière is measured by the ''outer'' diameter, and is defined as 1 Fr = 1/3 mm, and thus 1 mm = 3 Fr; therefore the diameter of a round catheter in millimetres can be determined by dividing the French size by 3. [2] The French units roughly correspond to the outer circumference of the catheter (see table below).

  5. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    13 mm = 0. 3 × 10 −3 m furlong: fur ≡ 10 chains = 660 ft = 220 yd [4] = 201.168 m hand: ≡ 4 in [4] ≡ 0.1016 m inch (International) in ≡ 2.54 cm ≡ 1 ⁄ 36 yd ≡ 1 ⁄ 12 ft ≡ 0.0254 m league (land) lea ≈ 1 hour walk, Currently defined in US as 3 Statute miles, [3] but historically varied from 2 to 9 km ≈ 4828 m ...

  6. Orders of magnitude (length) - Wikipedia

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

    25.4 μm – 1/1,000 inch, commonly referred to as 1 mil in the U.S. and 1 thou in the UK; 30 μm – length of a human skin cell; 30.8568 μm – 1 zeptoparsec; 50 μm – typical length of Euglena gracilis, a flagellate protist [96] 50 μm – typical length of a human liver cell, an average-sized body cell [citation needed]

  7. List of rail transport modelling scale standards - Wikipedia

    en.wikipedia.org/wiki/List_of_rail_transport...

    A worldwide garden railroad scale. Corresponds to NEM III and NMRA 3 ⁄ 4 inch. -1:12: 4 + 3 ⁄ 4 in (121 mm) North America specific scale corresponding to NMRA 1-inch scale. 1:12 is one of the most popular backyard railway scales. -1:11: 5 in (127 mm) Used outside North America. Corresponds to NEM V. One of the most popular garden railway ...

  8. Traditional point-size names - Wikipedia

    en.wikipedia.org/wiki/Traditional_point-size_names

    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] These names were used relative to the others and their exact length would vary over time, from country to country, and from foundry to foundry.

  9. Miniature model (gaming) - Wikipedia

    en.wikipedia.org/wiki/Miniature_model_(gaming)

    One of the most common is 1 inch represents 5 feet. This specifies an exact scale of 1:60. That implies that a 28 mm tall figurine represents a 1.68 m (5 ft 6 in) person – which is a reasonable number for a modern 50th percentile male (See: Human height). Another popular scale is 1/72 or 1 inch equals 6 foot which uses 20 mm, to 25 mm miniatures.