carbon arc welding
61Auguste de Méritens — de Méritens lighthouse generator Baron Auguste de Méritens was a French electrical engineer of the 19th century. He was born in 1834 …
62Ultraviolet — UV redirects here. For other uses, see UV (disambiguation). UVB redirects here. For the mysterious shortwave radio station in Russia, see UVB 76. For other uses, see Ultraviolet (disambiguation). False color image of the Sun s corona as seen in… …
63Copper — For other uses, see Copper (disambiguation) …
64Spark-gap transmitter — A spark gap transmitter is a device for generating radio frequency electromagnetic waves. These devices served as the transmitters for most wireless telegraphy systems for the first three decades of radio (1887 ndash;1916) and the first… …
65Soldering — For the song, see Soldering (song). For the product, see Solder. Desoldering a contact from a wire. Soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal (solder) into the joint, the… …
66A36 steel — is a standard steel alloy which is a common structural steel used in the United States.Steel Construction Manual, 8th Edition, second revised edition, American Institute of Steel Construction, 1986, ch. 1 page 1 5] The A36 standard was… …
67Tungsten — (pronEng|ˈtʌŋstən), also known as wolfram (IPA|/ˈwʊlfrəm/), is a chemical element that has the symbol W and atomic number 74.A steel gray metal, tungsten is found in several ores, including wolframite and scheelite. It is remarkable for its… …
68Eveready Industries — India, Ltd (EIIL) (formerly known as Union Carbide India, Limited) is the flagship company of the B.M. Khaitan Group. The brand Eveready has been a part of India since 1905.EIIL s principal activities are the manufacture and market of batteries,… …
69Electric heating — is any process in which electrical energy is converted to heat. Common applications include heating of buildings, cooking, and industrial processes. An electric heater is an electrical appliance that converts electrical energy into heat. The… …
70Manganism — Classification and external resources Manganese ICD 10 T57.2 …
