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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 miniatures where a 6 foot man would equal 15.24 mm 1:110: 2.771 mm
The 1/e 2 width is important in the mathematics of Gaussian beams, in which the intensity profile is described by () = (). The American National Standard Z136.1-2007 for Safe Use of Lasers (p. 6) defines the beam diameter as the distance between diametrically opposed points in that cross-section of a beam where the power per unit area is 1/e (0 ...
The Charrière is measured by the ''outer'' diameter, and is defined as 1 Fr = 1/3 mm, and thus 1 mm = 3 Fr; therefore the diameter of a round catheter in millimetres can be determined by dividing the French size by 3. The French units roughly correspond to the outer circumference of the catheter (see table below).
Another popular scale is 1/72 or 1 inch equals 6 foot which uses 20 mm, to 25 mm miniatures. It is mostly used for historical gaming in part due to a wide selection of 1/72 scale models. Figures of 15 mm, 20 mm, 25 mm, 28 mm, 30 mm, 32 mm, and 35 mm are the most common for role-playing and table-top games.
The nanometre ( SI symbol: nm) is a unit of length in the metric system equal to 10−9 metres ( 1 1 000 000 000 m = 0.000 000 001 m ). To help compare different orders of magnitude, this section lists lengths between 10 −9 and 10 −8 m (1 nm and 10 nm). 1 nm – diameter of a carbon nanotube.
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 ...
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 ...
35 mm equivalent focal lengths are calculated by multiplying the actual focal length of the lens by the crop factor of the sensor. Typical crop factors are 1.26× – 1.29× for Canon (1.35× for Sigma "H") APS-H format, 1.5× for Nikon APS-C ("DX") format (also used by Sony, Pentax, Fuji, Samsung and others), 1.6× for Canon APS-C format, 2× for Micro Four Thirds format, 2.7× for 1-inch ...