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A common adjustment value in firearm sights is 1 cm at 100 meters which equals 10 mm / 100 m = 1 / 10 mrad. The true definition of a milliradian is based on a unit circle with a radius of one and an arc divided into 1,000 mrad per radian, hence 2,000 π or approximately 6,283.185 milliradians in one turn , and rifle scope ...
foot (Indian) (H) ft Ind ≈ 0.304 799 514 m: foot, metric: mf ≡ 300 mm ≡ 0.3 m foot, metric (Mesures usuelles) (H) ≡ 1 ⁄ 3 m ≡ 0. 3 m foot (International) ft ≡ 0.3048 m ≡ 1 ⁄ 3 yd ≡ 12 inches ≡ 0.3048 m foot (Sear's) (H) ft (Sear) ≈ 0.304 799 47 m: foot (US Survey) ft (US) ≡ 1200 ⁄ 3937 m [5] ≈ 0.304 800 610 m ...
long code "foot" outputs foot (and never feet) Use of ′ and ″ symbols violates MOSNUM so is not provided. 1.0 ft (0.30 m) ftin (feet and inches) ft m (foot m) inch: in in Use of ′ and ″ symbols violates MOSNUM so is not provided. 1.0 in (25 mm) in cm; in mm; Other: nautical mile: nmi nmi the international standard nautical mile
The nautical mile (nmi) was originally defined as the arc length of a minute of latitude on a spherical Earth, so the actual Earth circumference is very near 21 600 nmi. A minute of arc is π 10 800 of a radian. A second of arc, arcsecond (arcsec), or arc second, denoted by the symbol ″, [2] is 1 60 of an arcminute, 1 3600 ...
In Japan the 1,067 mm (3 ft 6 in) gauge, along with other narrow gauges, is referred to as kyōki (狭軌), which directly translates as narrow gauge, to differentiate it from the Shinkansen lines. It is defined in metric units. It is commonly referred to as 三六軌間 (36 gauge), which derives from the 3 ft 6 in.
The film itself is 35 mm wide (1.38 in), but the area between the perforations is 24.89 mm × 18.67 mm (0.980 in × 0.735 in), leaving the de facto ratio of 1.33:1. [ 3 ] With a space designated for the standard optical soundtrack , and the frame size reduced to maintain an image that is wider than tall; this resulted in the Academy aperture of ...
A board foot is a United States and Canadian unit of approximate volume, used for lumber. It is equivalent to 1 inch × 1 foot × 1 foot (144 cu in or 2,360 cm 3). It is also found in the unit of density pounds per board foot. In Australia and New Zealand the terms super foot or superficial foot were formerly used for this unit. The exact ...
A value in decimal degrees to 5 decimal places is precise to 1.11 metres (3 ft 8 in) at the equator. Elevation also introduces a small error: at 6,378 metres (20,925 ft) elevation, the radius and surface distance is increased by 0.001 or 0.1%.