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Scale height. The earth atmosphere's scale height is about 8.5 km, as can be confirmed from this diagram of air pressure p by altitude h: At an altitude of 0, 8.5, and 17 km, the pressure is about 1000, 370, and 140 hPa, respectively. In atmospheric, earth, and planetary sciences, a scale height, usually denoted by the capital letter H, is a ...
There has been a "scale creep" over the years as manufacturers produce more-imposing figures, leading to a current designation of "28mm" for the larger pieces. 1:72: 1 ⁄ 6 in: 4.233 mm: Aircraft models: At 1 inch in this scale = 6 feet (man's height) in the real world. Aircraft, science fiction, space non fiction, figures, vehicles, and ...
The scale was devised in 1805 by Francis Beaufort (later Rear Admiral ), a hydrographer and a Royal Navy officer, while serving on HMS Woolwich, and refined until he was Hydrographer of the Navy in the 1830s, when it was adopted officially. It was first used during the 1831-1836 "Darwin voyage" of HMS Beagle under Captain Robert FitzRoy, who ...
1:18 scale is a traditional scale (ratio) for models and miniatures, in which 18 units (such as inches or centimeters) on the original is represented by one unit on the model. Depending on application, the scale is also called two third inch scale since 1 foot is represented by 2/3 of an inch. [ 1] The scale is used for 1:18 scale diecast ...
1:144 scale is a scale used for some scale models such as micro/mini armor. 1:144 means that the dimensions of the model are 1/144 (0.00694) the dimensions of the original life-sized object; this equates to a scale of 1/2 inch per 6 feet of original dimension. For instance, an airplane 30 feet (9.14 m) in length would be a mere 2.5 inches (63.5 ...
Geographic coordinate conversion has applications in cartography, surveying, navigation and geographic information systems . In geodesy, geographic coordinate conversion is defined as translation among different coordinate formats or map projections all referenced to the same geodetic datum. [ 1] A geographic coordinate transformation is a ...
The 1:64 scale is a traditional scale for models and miniatures, in which one unit (such as an inch or a centimeter) on the model represents 64 units on the actual object. It is also known as the "three-sixteenths scale" since 3/16 of an inch represents one foot. An average human is approximately 16 inches (27 mm) tall when represented in 1:64 ...
1:32 is a useful scale for scratch modelling or railways. As well as standard gauge gauge 1 using 45 mm / 1.772 in track, narrow gauge modellers use 0 gauge ( 32 mm / 1.26 in) track for 42", 1m and 36" prototype gauges. Also H0/00 track at 16.5 mm is used to represent models of 20 in / 508 mm gauge railways. Today, 1:32 is associated with slot ...