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Subdivisions of an inch are typically written using dyadic fractions with odd number numerators; for example, two and three-eighths of an inch would be written as 2 + 3 / 8 ″ and not as 2.375″ nor as 2 + 6 / 16 ″. However, for engineering purposes fractions are commonly given to three or four places of decimals and have been ...
57 mm 2.244 inch Ordnance BL 10-pounder Mountain gun: Mountain gun 69.8 mm 2.75 inch 12-pounder (multiple types) Light field gun 76.2 mm 3 inch Ordnance QF 13-pounder: Light field gun 76.2 mm 3 inch 15- pounder (multiple types) Field gun 76.2 mm 3 inch Ordnance QF 17- pounder: Anti-tank gun 76.2 mm 3 inch Ordnance QF 18- pounder: Field gun 83.8 ...
The original 1 ⁄ 4 inch (6.35 mm) phone connector jack dates back to 1878 [53] [54] [55] and still sees use in audio equipment and electric instruments. In many respects, it has been superseded by the 3.5 mm connectors or 2.5 mm headset, which was common on older mobile phones. [56]
In square mils, the area of a circle with a diameter of 1 mil is: = = = = ( ) = . By definition, this area is also equal to 1 circular mil, so: = . The formula for the area of an arbitrary circle in circular mils can be derived by applying this conversion factor to the standard formula for the area of a circle (which gives its result in square mils).
Millimetre of water (US spelling millimeter of water) [3] is a unit of pressure. It may be defined as the pressure exerted by a column of water of 1 mm in height at 4 °C (temperature of maximum density) at the standard acceleration of gravity, so that 1 mmH 2 O (4 °C) = 999.9720 kg/m 3 × 9.80665 m/s 2 × 1 mm = 9.8063754138 Pa ≈ 9.80638 Pa, but conventionally a nominal maximum water ...
The standard designation for a UTS thread is a number indicating the nominal (major) diameter of the thread, followed by the pitch measured in threads per inch.For diameters smaller than 1 / 4 inch, the diameter is indicated by an integer number defined in the standard; for all other diameters, the inch figure is given.
600 mm: 600 mm (1 ft 11 + 5 ⁄ 8 in) Two foot: 610 mm (2 ft) Two foot three inch: 686 mm (2 ft 3 in) 750 mm: 750 mm (2 ft 5 + 1 ⁄ 2 in) Bosnian gauge: 760 mm (2 ft 5 + 15 ⁄ 16 in) Two foot six inch: 762 mm (2 ft 6 in) Swedish three foot: 891 mm (2 ft 11 + 3 ⁄ 32 in) 900 mm: 900 mm (2 ft 11 + 7 ⁄ 16 in) Three foot: 914 mm (3 ft) Italian ...
Used for 12 mm, and 12.5 mm figure scale miniature wargaming. 1:128: 3 ⁄ 32 in: 2.381 mm A few rockets and some fit-in-the-box aircraft are made to this size. 1:120: 0.1 in: 2.54 mm: Model railways (TT) Derived from the scale of 1 inch equals 10 feet.TT model railroad scale. Used in AD&D Battlesystem Skirmishes rules. Works with 15 mm ...