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  2. Inch - Wikipedia

    en.wikipedia.org/wiki/Inch

    A fire hydrant marked as 3-inch. The inch (symbol: in or ″) is a unit of length in the British Imperial and the United States customary systems of measurement.It is equal to ⁠ 1 / 36 ⁠ yard or ⁠ 1 / 12 ⁠ of a foot.

  3. Scientific notation - Wikipedia

    en.wikipedia.org/wiki/Scientific_notation

    An inch is defined as exactly 25.4 mm. Using scientific notation, this value can be uniformly expressed to any desired precision, from the nearest tenth of a millimeter 2.54 × 10 1 mm to the nearest nanometer 2.540 0000 × 10 1 mm, or beyond.

  4. Estimation of stature - Wikipedia

    en.wikipedia.org/wiki/Estimation_of_stature

    Manouvrier (1892 and 1893) found that due to the effect of old age the length of the trunk was 3 cm less than the maximum stature. He excluded those aged above 60 years from his sample and derived tables of average stature corresponding to given long bone lengths.

  5. 7 mm caliber - Wikipedia

    en.wikipedia.org/wiki/7_mm_caliber

    Name Date Bullet Case type Case length Rim Base Shoulder Neck Overall length 7×20mm Nambu [1]: 1903: 7.112 (.280) rimless bottleneck: 19.81 (0.78) 9.12 (.359) 8.91 (.351)

  6. Yule Marble - Wikipedia

    en.wikipedia.org/wiki/Yule_Marble

    There are 2,000–3,000 grains to the square centimeter (0.1550 square inches). Where the marble is in direct contact with the intrusive granite, the most consistent change in the marble is that it becomes extremely coarse-grained, with the grain size in the contact zone being 10 mm to 20 mm (0.3937–0.7874 inches).

  7. .270 Winchester - Wikipedia

    en.wikipedia.org/wiki/.270_Winchester

    The .270 Winchester cartridge is equipped with a 130-grain bullet traveling at approximately 3,060 feet per second (fps). When sighted in to intersect 3 inches above the line of sight at 100 yards (about 90 meters), it maintains a trajectory that rises no more than 3.5 inches and aligns with the line of sight around 270 yards.

  8. Candela - Wikipedia

    en.wikipedia.org/wiki/Candela

    The 26th General Conference on Weights and Measures (CGPM) redefined the candela in 2018. [10] [11] The new definition, which took effect on 20 May 2019, is: The candela [...] is defined by taking the fixed numerical value of the luminous efficacy of monochromatic radiation of frequency 540 × 10 12 Hz, [a] K cd, to be 683 when expressed in the unit lm W −1, which is equal to cd sr W −1 ...

  9. British Standard Pipe - Wikipedia

    en.wikipedia.org/wiki/British_Standard_Pipe

    British Standard Pipe (BSP) is a set of technical standards for screw threads that has been adopted internationally for interconnecting and sealing pipes and fittings by mating an external thread with an internal (female) thread.