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Miners also use it as a unit of area equal to 6 feet square (3.34 m 2) in the plane of a vein. [2] In Britain, it can mean the quantity of wood in a pile of any length measuring 6 feet (1.8 m) square in cross section. [2] In Central Europe, the klafter was the corresponding unit of comparable length, as was the toise in France.
The foot (standard symbol: ft) [1][2] is a unit of length in the British imperial and United States customary systems of measurement. The prime symbol, ′, is commonly used to represent the foot. [3] In both customary and imperial units, one foot comprises 12 inches, and one yard comprises three feet. Since an international agreement in 1959 ...
Hi8. Digital8. Data8. Released. 1984. The 8mm video format refers informally to three related videocassette formats. These are the original Video8 (analog recording) format and its improved successor Hi8 (analog video and analog audio but with provision for digital audio), as well as a more recent digital recording format known as Digital8.
Height above mean sea level is a measure of a location's vertical distance (height, elevation or altitude) in reference to a vertical datum based on a historic mean sea level. In geodesy, it is formalized as orthometric height. The zero level varies in different countries due to different reference points and historic measurement periods.
8 mm film is a motion picture film format in which the film strip is eight millimetres (0.31 in) wide. It exists in two main versions – the original standard 8 mm film, also known as regular 8 mm, and Super 8. Although both standard 8 mm and Super 8 are 8 mm wide, Super 8 has a larger image area because of its smaller and more widely spaced ...
Nizo film-camera Super 8 frames - detail. Launched in 1965 by Eastman Kodak at the 1964 – 65 New York World's Fair, Super 8 film comes in plastic light-proof cartridges containing coaxial supply and take-up spools loaded with 50 feet (15 m) of film, with 72 frames per foot, for a total of approximately 3,600 frames per film cartridge.
The precise strength of Earth's gravity varies with location. The agreed upon value for standard gravity is 9.80665 m/s 2 (32.1740 ft/s 2) by definition. [4] This quantity is denoted variously as gn, ge (though this sometimes means the normal gravity at the equator, 9.7803267715 m/s 2 (32.087686258 ft/s 2)), [5] g0, or simply g (which is also ...
The first camera produced was Kodak's own Cine Kodak Eight Model 20.Like many subsequent cameras, it was extremely simple and powered by clockwork. In 1932, Siemens & Halske Berlin produced a line of small 16 mm cameras which actually used this new film size as its film as well as making a Standard 8 version that had a Std. 8 gate and also had a film cartridge which overcame the mid-film fog ...