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Screwfix Direct Limited, trading as Screwfix, is a retailer of trade tools, accessories and hardware products based in the United Kingdom. [6] Founded in 1979 as the Woodscrew Supply Company, the company was acquired in July 1999 by Kingfisher plc , which also owns B&Q , and is listed on the London Stock Exchange .
The M42 lens mount is a screw thread mounting standard for attaching lenses to 35 mm cameras, primarily single-lens reflex models. It is more accurately known as the M42 × 1 mm standard, which means that it is a metric screw thread of 42 mm diameter and 1 mm thread pitch.
On a force play, the fielder covering the base stands with one foot on that base. In general, the first baseman covers first base, the second baseman or shortstop covers second, the third baseman covers third, and the catcher covers home plate. However, on ground balls hit to the first baseman away from first base, the pitcher will cover first ...
This gun was externally similar to the 3.7 cm Pak 36, using a modified version of the latter's carriage, but used the squeeze bore principle (in German called Gerlich after Hermann Gerlich, who developed the principle in the 1920s, reportedly for a hunting rifle) to boost its velocity, and hence armour-piercing ability. The bore had a diameter ...
Schematic cross section of a pressurized caisson. In geotechnical engineering, a caisson (/ ˈ k eɪ s ən,-s ɒ n /; borrowed from French caisson 'box', from Italian cassone 'large box', an augmentative of cassa) is a watertight retaining structure [1] used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, [2] or for the repair of ships.
The cone-bore principle was first patented in 1903 by a German inventor, Carl Puff. [ 3 ] [ 4 ] In the 1920s and 1930s, another German engineer, Hermann Gerlich, conducted experiments with coned-bore barrels that resulted in an experimental 7 mm anti-tank rifle with a muzzle velocity of 1,800 m/s.
Com Lag (2plus2isfive), stylized as COM LAG (2plus2isfive), is an EP by the English rock band Radiohead, released on 24 March 2004.It compiles B-sides from Radiohead's sixth album, Hail to the Thief (2003), along with remixes by Cristian Vogel and Four Tet and two live performances.
[4] This was the same method used for extracting petroleum in California during the 1860s (i.e. "kicking her down"). [ 4 ] [ 5 ] A Western Han dynasty bronze foundry discovered in Xinglong, Hebei had nearby mining shafts which reached depths of 100 metres (330 ft) with spacious mining areas; the shafts and rooms were complete with a timber ...