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Raycom Sports is a Charlotte, North Carolina –based producer of sports television programs owned by Gray Television . It was founded in 1979 by husband and wife, Rick and Dee Ray. In the 1980s, Raycom Sports established a prominent joint venture with Jefferson-Pilot Communications which made them partners on the main Atlantic Coast Conference ...
The term "ladder operator" or "raising and lowering operators" is also sometimes used in mathematics, in the context of the theory of Lie algebras and in particular the affine Lie algebras. For example to describe the su (2) subalgebras, the root system and the highest weight modules can be constructed by means of the ladder operators. [1]
Bright House Networks, LLC also simply known as Bright House, was an American telecom company. Prior to its purchase by Charter Communications, it was the tenth-largest multichannel video service provider and the 6th largest cable internet provider (based on coverage) in the United States. [2]
Phantoms in non-U.S. service [1] [2] [3] F-4 Phantom II non-U.S. operators are the non-U.S. nations with air forces that operate or used to operate the McDonnell Douglas F-4 Phantom II. The Phantom II entered service with the U.S. military in 1960 and served until 1996.
Amateur First Grade required an essay-type examination and five (later ten) words per minute code examination before a Radio Inspector at one of the Department's field offices. This class of license was renamed Amateur Class in 1927 and then Amateur First Class in 1932. Amateur Radio licensing in the United States began in mid-December 1912.
The following is a list of current commercial operators of the Boeing 767, and any of its variants. As of 2020, there were 764 Boeing 767 aircraft in service, comprising 68 767-200s, 655 767-300s and 37 767-400ERs, as listed by variant in the following table. [needs update]
The Lockheed Martin/Boeing F-22 Raptor is an American twin-engine all-weather stealth fighter aircraft developed and produced for the United States Air Force (USAF). As a product of the USAF's Advanced Tactical Fighter (ATF) program the aircraft was designed as an air superiority fighter, but also incorporates ground attack, electronic warfare ...
Signaller. A signaller, signalman, colloquially referred to as a radioman or signaleer [1] in the armed forces is a specialist soldier, sailor or airman responsible for military communications. Signallers, a.k.a. Combat Signallers or signalmen or women, are commonly employed as radio or telephone operators, relaying messages for field ...