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  2. United States Mint coin sizes - Wikipedia

    en.wikipedia.org/wiki/United_States_Mint_coin_sizes

    14 mm 0.8 g 0.750 fine 1851–1853 14 mm 0.75 g 0.900 fine 1854–1873 Half Dime 15.5 mm 1.24 g 1794–1873 Dollar 15 mm 1.67 gr 1849–1889 $5 American Gold Eagle 16.5 mm 3.11 g 1986–present $10 American Platinum Eagle 16.5 mm 3.11 g 1997–present Three Cent 17.9 mm 1.94 g 1865-1889 Dime (Clad) 17.91 mm 2.268 g 1965–present Dime 17.9 mm 2 ...

  3. Orders of magnitude (length) - Wikipedia

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

    1.2 cm – length of a bee; 1.2 cm – diameter of a die; 1.5 cm – length of a very large mosquito; 1.6 cm – length of a Jaragua Sphaero, a very small reptile; 1.7 cm – length of a Thorius arboreus, the smallest salamander [111] 2 cm – approximate width of an adult human finger; 2.54 cm – 1 inch; 3.08568 cm – 1 attoparsec

  4. 2 cm Flak 30, Flak 38 and Flakvierling 38 - Wikipedia

    en.wikipedia.org/wiki/2_cm_Flak_30,_Flak_38_and...

    The Germans fielded the unrelated early 2 cm Flak 28 just after World War I, but the Treaty of Versailles outlawed these weapons and they were sold to Switzerland. The original Flak 30 design was developed from the Solothurn ST-5 as a project for the Kriegsmarine , which produced the 20 mm C/30 .

  5. List of naval guns by caliber - Wikipedia

    en.wikipedia.org/wiki/List_of_naval_guns_by_caliber

    406 mm (16.0 in) 16"/50 caliber Mark 7 gun United States: World War II - Cold War 406 mm (16.0 in) 406 mm/50 (16") B-37 Pattern 1937 Soviet Union: World War II 406 mm (15.98 in) 16"/50 caliber Mark 2 & 3 gun United States: 1920s - World War II 410 mm (16.14 in) 41 cm/45 3rd Year Type naval gun Japan: World War II 412.8 mm (16.25 in)

  6. German designations of foreign artillery in World War II

    en.wikipedia.org/wiki/German_designations_of...

    Before the war began the German armed forces Heereswaffenamt compiled a list of known foreign equipment and assigned a unique number to each weapon. These weapons were called Fremdgerät or Beutegerät ("foreign device" or "captured device") and their technical details were recorded in a fourteen-volume set that was periodically updated.

  7. Type 2 20 mm AA machine cannon - Wikipedia

    en.wikipedia.org/wiki/Type_2_20_mm_AA_machine_cannon

    Introduced in 1942, compared to the earlier Type 98 20 mm AA machine cannon, Type 2 20 mm had higher maximum rate of fire, could be elevated to 95 degrees and had a central fire-control system. [3] The central fire-control system developed for the Type 2 could control and direct six of the guns at once.

  8. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    54 mm figure scale toy soldiers are supposed to use this scale as well. Same as Gauge 1, cars, common for slot cars. Commonly referred to as Stablemate size in model horses. 1:30.5: 10 mm Often quoted as the alternative to 1:32 scale. 1:30: 0.4 in: 10.16 mm Toy soldiers and military vehicles including King & Country and Figarti. 1:29: 10.51 mm

  9. Finger (unit) - Wikipedia

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

    The digit, also known as digitus or digitus transversus (Latin), dactyl (Greek) or dactylus, or finger's breadth – 3 ⁄ 4 of an inch or 1 ⁄ 16 of a foot. [1] [2] (about 2 cm) In medicine and related disciplines (anatomy, radiology, etc.) the fingerbreadth (literally the width of a finger) is an informal but widely used unit of measure. [3] [4]