phase-comparison relay
41electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …
42Track and field — For the video game, see Track Field (video game). Track and field The track and field stadium is at the heart of the sport Nickname(s) Track Characteristics Team mem …
43Dragon boat — This article is about Dragon boats and racing. For the festivals and holidays associated with dragon boats, see Duanwu Festival. Dragon boat Traditional Chinese 龍舟 Simplified Chinese 龙舟 …
44Latin America, history of — Introduction history of the region from the pre Columbian period and including colonization by the Spanish and Portuguese beginning in the 15th century, the 19th century wars of independence, and developments to the end of World War II.… …
45IPv6 — Internet protocol suite Application layer BGP DHCP DNS FTP …
46Sagnac effect — The Sagnac effect (also called Sagnac Interference), named after French physicist Georges Sagnac, is a phenomenon encountered in interferometry that is elicited by rotation. The Sagnac effect manifests itself in a setup called ring interferometry …
47South Africa — Republic of, a country in S Africa; member of the Commonwealth of Nations until 1961. 42,327,458; 472,000 sq. mi. (1,222,480 sq. km). Capitals: Pretoria and Cape Town. Formerly, Union of South Africa. * * * South Africa Introduction South Africa… …
48ExoMars Trace Gas Orbiter — with Europe’s entry, descent and landing demonstration vehicle Operator ESA and NASA Mission type Orbiter/carrier Satellite of …
49BIBLE — THE CANON, TEXT, AND EDITIONS canon general titles the canon the significance of the canon the process of canonization contents and titles of the books the tripartite canon …
50Central processing unit — CPU redirects here. For other uses, see CPU (disambiguation). An Intel 80486DX2 CPU from above An Intel 80486DX2 from below …
