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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.
The increase in altitude necessary for P or ρ to drop to 1/e of its initial value is called the scale height: H = R T M g 0 {\displaystyle H={\frac {RT}{Mg_{0}}}} where R is the ideal gas constant, T is temperature, M is average molecular weight, and g 0 is the gravitational acceleration at the planet's surface.
Scale height of figures in 1:60 and 1:72 scale. Historically the size of miniatures was described in absolute scale in various different systems of measurement, most commonly in metric and English units. A 28mm miniature means that the size of the miniature will be 28mm from the feet of the mini to the chosen reference point.
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 ...
Length scale (or "scale length"), a significant concept in physics used to define the order of magnitude of a system; Scale height (or "scale length"), a specific parameter in physics denoting the distance over which a quantity decreases by a factor of e; Scale length (string instruments), a measurement of the length of a musical instrument string
Balance scale set, with weights Scales used to measure the weight of fruit in a supermarket Weighing scale in use in Tokyo Digital kitchen scale, a strain gauge scale Weighing scale for a baby includes a ruler for height measurement. A scale or balance is a device used to measure weight or mass.
It is a common scale for aircraft models and for figure modeling, where it is called 54 mm scale, from the height of the human figure. 1:32 was used for equipment to match 54 mm toy soldiers for miniature wargaming and was common in scale military modeling such as tanks and armored cars until it was largely replaced by 1:35 scale.
Height of the Salto Angel, the world's highest free-falling waterfall 10 3: 1 kilometer 2.3 km Length of the Three Gorges Dam, the largest dam in the world [34] [35] 3.1 km Narrowest width of the Strait of Messina, separating Italy and Sicily: 8.848 km Height of Mount Everest, the highest mountain on Earth 10 4: 10 km: 10.9 km