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41Beer in England — Traditional beer pump English beer has a long history and traditions that are distinct from most other beer brewing countries. Beer was the first alcoholic drink to be produced in England, and has been brewed continuously since prehistoric… …
42MythBusters (2010 season) — Country of origin Australia United States No. of episodes 25 (includes 4 specials) Broadcast Original channel …
43Metal halide lamp — Metal halide lamps, a member of the high intensity discharge (HID) family of lamps, produce high light output for their size, making them a compact, powerful, and efficient light source. Originally created in the late 1960 s for industrial use,… …
44Geography of Saskatchewan — Country geography name = Saskatchewan continent = America region = North America Western Canada coordinates = coord|49|00|00|N|101|21|41|W|region:CA coord|60|00|N|110|00|W|region:CA area|ranking = 7th among provinces km area = 651900 area ref = [ …
45City of London — Not to be confused with London. City of London The City • Square Mile Aerial view of the City of London …
46Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… …
47Le Sage's theory of gravitation — is the most common name for the kinetic theory of gravity originally proposed by Nicolas Fatio de Duillier in 1690 and later by Georges Louis Le Sage in 1748. The theory proposed a mechanical explanation for Newton s gravitational force in terms… …
48cricket — cricket1 cricketlike, adj. /krik it/, n. 1. any of several jumping, orthopterous insects of the family Gryllidae, characterized by long antennae and stridulating organs on the forewings of the male, as one of the species commonly found in… …
49environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …
50tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
