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For example, in duodecimal, 1 / 2 = 0.6, 1 / 3 = 0.4, 1 / 4 = 0.3 and 1 / 6 = 0.2 all terminate; 1 / 5 = 0. 2497 repeats with period length 4, in contrast with the equivalent decimal expansion of 0.2; 1 / 7 = 0. 186A35 has period 6 in duodecimal, just as it does in decimal. If b is an integer base ...
Snellen chart. The Snellen chart, which dates back to 1862, is also commonly used to estimate visual acuity.A Snellen score of 6/6 (20/20), indicating that an observer can resolve details as small as 1 minute of visual angle, corresponds to a LogMAR of 0 (since the base-10 logarithm of 1 is 0); a Snellen score of 6/12 (20/40), indicating an observer can resolve details as small as 2 minutes of ...
1:65: 4.689 mm Ships, die-cast cars. Similar to 1:64. 1:64: 4.763 mm Ships, die-cast cars. Matchbox and Hot Wheels use this scale to describe their vehicles, although the actual scale of the individual models varies from 1:55 to beyond 1:100. Same as S Scale. Also called 3 ⁄ 16 in. scale. Known as 25 mm figure scale in wargaming circles. [12 ...
In the United Kingdom, a pinch is traditionally 1 / 2 UK salt spoon, [5] the equivalence of 1 / 4 UK teaspoon. 1 / 2 UK salt spoon is an amount of space that can accommodate 15 British imperial minims ( 1 / 4 British imperial fluid drachm or 1 / 32 British imperial fluid ounce; about 14·41 US customary ...
1.4 m – length of a Peel P50, the world's smallest car; 1.435 m – standard gauge of railway track used by about 60% of railways in the world = 4 ft 8 1 ⁄ 2 in; 2.5 m – distance from the floor to the ceiling in an average residential house [118] 2.7 m – length of the Starr Bumble Bee II, the smallest plane
1.0 3.2 3.3 +0.5 5.3 5.0 – – (no queens) ... have almost exactly the same value, even though the lone rook is two pawns stronger than the lone bishop. The empress ...
For example, the conversion factor between a mass fraction of 1 ppb and a mole fraction of 1 ppb is about 4.7 for the greenhouse gas CFC-11 in air (Molar mass of CFC-11 / Mean molar mass of air = 137.368 / 28.97 = 4.74). For volume fraction, the suffix "V" or "v" is sometimes appended to the parts-per notation (e.g. ppmV, ppbv, pptv).
= 1 MW·h (megawatt-hour) 4.2×10 9 J: Energy released by explosion of 1 ton of TNT. 4.5×10 9 J: Average annual energy usage of a standard refrigerator [142] [143] 6.1×10 9 J: ≈ 1 bboe (barrel of oil equivalent) [144] 10 10 1.9×10 10 J: Kinetic energy of an Airbus A380 at cruising speed (560 tonnes at 511 knots or 263 m/s) 4.2×10 10 J