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In 1966, Rockwell invented the world's first power miter saw. In 1981, Rockwell's power tool group was acquired by Pentair and re-branded Delta Machinery. Pentair's Tools group was acquired by Black & Decker in 2005. [5] Since 2011, Delta has been a subsidiary of Chang Type Industrial Co., Ltd. of China.
In 1945, Rockwell Manufacturing Company acquired Delta Machinery and renamed it the Delta Power Tool Division of Rockwell Manufacturing Company and continued to manufacture in Milwaukee. In 1966, Rockwell invented the world's first power miter saw. In 1981, Rockwell's power tool group was acquired by Pentair and re-branded Delta Machinery.
Delta Sigma Theta established Delta Towers in the northeast area of Washington, D.C. Delta Towers is an apartment building for elderly and disabled individuals. [46] Delta Towers was the first retirement center founded by any of the African-American sororities or fraternities in the United States. [ 47 ]
In chemistry, a delta bond (δ bond) is a covalent chemical bond, in which four lobes of an atomic orbital on one atom overlap four lobes of an atomic orbital on another atom. This overlap leads to the formation of a bonding molecular orbital with two nodal planes which contain the internuclear axis and go through both atoms.
Delta-v (also known as "change in velocity"), symbolized as and pronounced deltah-vee, as used in spacecraft flight dynamics, is a measure of the impulse per unit of spacecraft mass that is needed to perform a maneuver such as launching from or landing on a planet or moon, or an in-space orbital maneuver.
The narrow delta was establishing itself as a preferred planform for supersonic flight, replacing earlier designs like the swept-wing and trapezoidal layouts seen on designs like the Lockheed F-104 Starfighter and the earlier WS-110 concepts. Engines able to cope with higher temperatures were also under development, allowing for sustained ...
Delta is a home rule municipality that is the county seat and the most populous municipality of Delta County, Colorado, United States. [ 1 ] [ 7 ] The town population was 9,035 at the 2020 United States Census . [ 5 ]
Delta Force's founder Charles Beckwith in 1980 Delta Force bodyguards in civilian clothing providing close protection to General Norman Schwarzkopf during the Gulf War, 1991. Delta Force was created in 1977 after numerous well-publicized terrorist incidents led the U.S. government to develop a full-time counter-terrorism unit.