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  2. Traditional French units of measurement - Wikipedia

    en.wikipedia.org/wiki/Traditional_French_units...

    0.188 mm 7.401 thou 1 ⁄ 12 of a ligne. This unit is usually called the Truchet point in English. Prior to the French Revolution the Fournier point was also in use. It was 1 ⁄ 6 of a ligne or 1 ⁄ 864 of the smaller French foot. ligne: 1 ⁄ 144: 2.256 mm 88.81 thou 1 ⁄ 12 of a pouce. This corresponds to the line, a traditional English ...

  3. List of drill and tap sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_drill_and_tap_sizes

    The drill sizes that are near this are 6.3 mm (90%), 1⁄4 in (90.7%), 6.4 mm (91.4%), and 6.5 mm (92.9%); any of these will work well. For metric V threads, major minus pitch yields a good tap drill diameter. Example (metric, coarse): For M7.0 × 1.0, 7.0 − 1.0 = 6.0. Example (metric, fine): For M7.0 × 0.5, 7.0 − 0.5 = 6.5.

  4. Waist–hip ratio - Wikipedia

    en.wikipedia.org/wiki/Waist–hip_ratio

    t. e. The waist–hip ratio or waist-to-hip ratio (WHR) is the dimensionless ratio of the circumference of the waist to that of the hips. This is calculated as waist measurement divided by hip measurement (W⁄H). For example, a person with a 75 cm waist and 95 cm hips (or a 30-inch waist and 38-inch hips) has WHR of about 0.79.

  5. ISO metric screw thread - Wikipedia

    en.wikipedia.org/wiki/ISO_metric_screw_thread

    Designation. A metric ISO screw thread is designated by the letter M followed by the value of the nominal diameter D (the maximum thread diameter) and the pitch P, both expressed in millimetres and separated by a dash or sometimes the multiplication sign, × (e.g. M8-1.25 or M8×1.25). If the pitch is the normally used "coarse" pitch listed in ...

  6. Coaxial power connector - Wikipedia

    en.wikipedia.org/wiki/Coaxial_power_connector

    There are a number of sizes listed below that appear to be quite similar, and while the tolerances of these connectors are typically indicated as ±0.05 or ±0.03 mm by the manufacturers, there is still ambiguity as to whether two sizes differing by only 0.05 mm (or where the specification is only given to the nearest 0.10 mm) warrants listing ...

  7. Birmingham gauge - Wikipedia

    en.wikipedia.org/wiki/Birmingham_gauge

    The gauge starts at the lowest gauge number of 5Ø or 00000, corresponding to the largest size of 0.500 inches (12.7 mm), and runs to the highest gauge number of 36, corresponding to the smallest size of 0.004 inches (0.10 mm).

  8. Human height - Wikipedia

    en.wikipedia.org/wiki/Human_height

    Human height measurement using a stadiometer. Human height or stature is the distance from the bottom of the feet to the top of the head in a human body, standing erect.It is measured using a stadiometer, [1] in centimetres when using the metric system or SI system, [2] [3] or feet and inches when using United States customary units or the imperial system.

  9. List of examples of lengths - Wikipedia

    en.wikipedia.org/wiki/List_of_examples_of_lengths

    To help compare different orders of magnitude this page lists lengths between 10 −3 and 10 −2 m (1 mm and 1 cm). 1.0 mm — ⁠ 1 / 1000 ⁠ of a metre; 1.0 mm — 0.039 37 inches or 5 ⁄ 127 (exactly) 1.0 mm — side of square of area 1 mm 2; 1.0 mm — diameter of a pinhead; 1.5 mm — length of average flea