multiple pole
41Timeline of Russian inventions and technology records — The Hall of Space Technology in the Tsiolkovsky State Museum of the History of Cosmonautics, Kaluga, Russia. The exhibition includes the models and replicas of the following Russian inventions: the first satellite, Sputnik 1 (a ball under the… …
42Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …
43American Revolution — The American Revolution refers to the political upheaval during the last half of the 18th century in which the Thirteen Colonies of North America overthrew the governance of the British Empire and collectively became the nation of the United… …
44Professional wrestling match types — A bloodied Kane inside a current style WWE cage. Many types of matches, sometimes called concept or gimmick matches in the jargon of the business, can be found in the form of performing art that is professional wrestling. Some of them are very… …
45Ligne E du RER d'Île-de-France — Pour les articles homonymes, voir Éole (homonymie) et Ligne E. RER E Eole …
46arts, East Asian — Introduction music and visual and performing arts of China, Korea, and Japan. The literatures of these countries are covered in the articles Chinese literature, Korean literature, and Japanese literature. Some studies of East Asia… …
47Television antenna — A Winegard HD 7084P 68 element VHF/UHF aerial antenna A television antenna, or TV aerial, is an antenna specifically designed for the reception of over the air broadcast television signals, which are transmitted at frequencies from about 41 to… …
48United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
49Monaco Grand Prix — This article is about the Formula One race. For other uses, see Monaco Grand Prix (disambiguation). Monaco Grand Prix Circuit de Monaco …
50Regelkreis — Blockschaltbild eines einfachen Standardregelkreises, bestehend aus der Regelstrecke, dem Regler und einer negativen Rückkopplung der Regelgröße y (auch Istwert). Die Regelgröße y wird mit der Führungsgröße (Sollwert) w verglichen. Die… …
