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The following plots show the difference in spherical power at a 0 mm vertex distance (at the eye) and a 12 mm vertex distance (standard eyeglasses distance). 0 mm is used as the reference starting power and is one-to-one. The second plot shows the difference between the 0 mm and 12 mm vertex distance powers.
The 7.65×20mm Long (also known as 7.65mm French Long/Longue, 7.65mm MAS, 7.65×20mm, 7.65L, and .30-18 Auto for use in the Pedersen Device) was a straight, rimless cartridge used in the French Modèle 1935 pistol, as well as the MAS-38 submachine gun and the ETVS submachine gun.
The previous generation of the military calibres used in Europe at the time were 10 to 14 mm (and black powder) as opposed to 7.5 mm of the Schmidt–Rubin ammunition, but the transition was underway in late 1880s (e. g., 8×50mmR Lebel was adopted in 1886 and 7.65×53mm Mauser in 1889). It was one of the first with 7.5 mm copper-jacketed ...
An overview of 7mm caliber cartridges, their history, and uses in firearms.
The 7.92×33mm Kurz has a 2.22 ml (34.3 grain H 2 O) cartridge case capacity.. 7.92×33mm Kurz maximum C.I.P. cartridge dimensions.All sizes in millimeters (mm). Americans define the shoulder angle at alpha/2 ≈ 17.5 degrees. The common rifling twist rate for this cartridge is 240 mm (1 in 9.45 in), four grooves, Ø lands = 7.89 millimetres (0.311 in), Ø grooves = 8.20 millimetres (0.323 in ...
The distance between the inside edges of the heads of the rails is defined to be 1,435 mm except in the United States, Canada, and on some heritage British lines, where it is defined in U.S. customary/customary UK units as exactly "four feet eight and one half inches", [7] which is equivalent to 1,435.1 mm.
1 x gl-821 hy 02 The Gourdou-Leseurre GL-820 HY family of four-seat single-engined floatplanes were designed and built in France during the latter half of the 1930s by Gourdou-Leseurre. The GL-820 HY and GL-821 HY 02 were shipborne reconnaissance / observation aircraft, while the sole GL-821 HY was built as a torpedo carrier.
One half is the rational number that lies midway between 0 and 1 on the number line. Multiplication by one half is equivalent to division by two, or "halving"; conversely, division by one half is equivalent to multiplication by two, or "doubling". A square of side length one, here dissected into rectangles whose areas are successive powers of ...