apparatus work
21breathing apparatus — /ˈbriðɪŋ æpəˌratəs/ (say breedhing apuh.rahtuhs) noun equipment designed to provide breathable air, either while the wearer is underwater, as a scuba set, or while on land, as for firefighting, rescue work, etc …
22electric work — Construction, installation, operation, alteration, removal or repair of electrical apparatus. Hollingsworth v Berry, 107 Kan 544, 192 P 763, 11 ALR 151 …
23WRNY (defunct) — WRNY was an AM radio station that operated in New York City from 1925 to 1934. It was started by Hugo Gernsback s Experimenter Publishing Company to promote his radio and science magazines. It was the first station to have regularly scheduled… …
24Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …
25Reginald Fessenden — Infobox Celebrity name = Reginald Fessenden caption = The Father of Radio Broadcasting birth date = birth date|1866|10|6|mf=y birth place = East Bolton, Quebec, Canada death date = death date and age|1932|7|22|1866|10|6|mf=y death place = Bermuda …
26china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material …
27China — /chuy neuh/, n. 1. People s Republic of, a country in E Asia. 1,221,591,778; 3,691,502 sq. mi. (9,560,990 sq. km). Cap.: Beijing. 2. Republic of. Also called Nationalist China. a republic consisting mainly of the island of Taiwan off the SE coast …
28Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… …
29Ministerial Awards of the Russian Federation — In the Russian Federation not only does the Federal Government create awards but so do many if not all of their Ministerial Departments. Some ministerial departments sub branches also create awards and medals of their own. Identifying all of the… …
30Guglielmo Marconi — Born 25 April 1874(1874 04 25) Palazzo Marescalchi, Bologna …
