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Electron-beam welding (EBW) is a fusion welding process in which a beam of high-velocity electrons is applied to two materials to be joined. The workpieces melt and flow together as the kinetic energy of the electrons is transformed into heat upon impact. EBW is often performed under vacuum conditions to prevent dissipation of the electron beam.
German matchbox containing safety matches. A matchbox is a container or case for matches, made of cardboard, thin wood, or metal, generally in the form of a box with a separate drawer sliding inside the cover. Matchboxes generally measure 5 x 3.5 x 1.5 cm, and commonly have coarse striking surfaces on the edges for lighting the matches.
EBW may refer to: Electron beam welding, a fusion welding process; Exploding bridgewire detonator, a device for detonating explosive charges; European Bike Week, an annual event held at the Faaker See in Carinthia, Austria for fans of motorbikes; EBW (rail company) (also known as "EBW cargo"), a private rail cargo company based in Dachau, Germany
The scraper in the center of the image is a three corner scraper and is typically used to deburr holes or the internal surface of bush-type bearings. Bushes are typically made from bronze or a white metal. The scraper pictured at the bottom is a curved scraper. It has a slight curve in its profile and is also suitable for bush bearings ...
The Fresno scraper is a machine pulled by horses used for constructing canals and ditches in sandy soil. The design of the Fresno scraper forms the basis of most modern earthmoving scrapers , having the ability to scrape and move a quantity of soil, and also to discharge it at a controlled depth, thus quadrupling the volume which could be ...
The EBW was invented by Luis Alvarez and Lawrence Johnston for the Fat Man–type bombs of the Manhattan Project, during their work in Los Alamos National Laboratory.The Fat Man Model 1773 EBW detonators used an unusual, high reliability detonator system with two EBW "horns" attached to a single booster charge, which then fired each of the 32 explosive lens units.
A 1953-55 Lesney-Matchbox Road Roller, one of the first toys to be produced under the Matchbox name. The Matchbox name originated in 1953 as a brand name of the British die-casting company Lesney Products, whose reputation was moulded by [2] John W. "Jack" Odell (1920–2007), [3] Leslie Charles Smith (1918–2005), [4] and Rodney Smith.
A twin engined Terex TS-14b scraper in Hudson, Ohio. In civil engineering, a wheel tractor-scraper (also known as a land scraper, land leveler or tournapull) is a type of heavy equipment used for earthmoving. It has a pan/hopper for loading and carrying material.