Search results
Results from the WOW.Com Content Network
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 ...
Angular resolution. A series of images representing the magnification of M87* with an angular size of some microarcseconds, comparable to viewing a tennis ball on the Moon (magnification from top left corner counter−clockwise to the top right corner). Angular resolution describes the ability of any image-forming device such as an optical or ...
The common 1" outside diameter circular video camera tubes have a rectangular photo sensitive area about 16 mm on the diagonal, so a digital sensor with a 16 mm diagonal size is a 1" video tube equivalent. The name of a 1" digital sensor should more accurately be read as "one inch video camera tube equivalent" sensor.
OO gauge. OO gauge or OO scale (also, 00 gauge and 00 scale) is the most popular standard gauge model railway standard in the United Kingdom, [1] outside of which it is virtually unknown. OO gauge is one of several 4 mm-scale standards (4 mm to 1 ft (304.8 mm), or 1:76.2), and the only one to be marketed by major manufacturers. The OO track ...
The standard bullet diameter for 6 mm caliber cartridges is .243 inches (6.2 mm), the same diameter used in the .243 Winchester and 6mm Remington cartridges. To obtain maximum accuracy, bullet weight and form are matched to the rifling twist rate of the barrel. Typically, 68 gr (4.41 g) bullets are used in barrels with twist rates of 1 in 13 ...
Republic P-47, Lockheed P-38G Lightning, M4 Sherman, LST. The M8 was a 4.5-inch (114 mm) rocket developed and used by the United States military during World War II. Produced in the millions, it was fired from both air- and ground-based launchers; it was replaced by the M16 rocket in 1945.
It is a transitional size with the shorter side of ISO A4 (210 mm, 8 + 1 ⁄ 4 inch) and the longer side of British Foolscap (13-inch, 330 mm). ISO A4 is exactly 90% the height of F4. This size is sometimes also known as (metric) 'foolscap' or 'folio'. In some countries, the narrow side of F4 is slightly broader: 8.5 inches (216 mm) or 215 mm.
The 7.65×21mm Parabellum (designated as the 7,65 Parabellum by the C.I.P. [3] and also known as .30 Luger and 7.65mm Luger) is a pistol cartridge that was introduced in 1898 by German arms manufacturer Deutsche Waffen- und Munitionsfabriken (DWM) for their new Pistol Parabellum. The primary developers of the pistol cartridge were firearms ...