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cable television
cable television the transmission of televised images to viewers by means of coaxial cables. Cable systems receive the television signal, which is sent out over cables to individual subscribers, by a common antenna (CATV) or satellite dish. Early cable systems developed in the late 1940s to improve...
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Lyra
Lyra [Lat.,=the lyre], northern constellation lying S of Draco, E of Hercules, and W of Cygnus. Although many civilizations represented it as a bird, it was also depicted as a tortoise. The white star Vega (Alpha Lyrae), the brightest star in the constellation, is one of the brightest in the en...
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the Internet
the Internet international computer network linking together thousands of individual networks at military and government agencies, educational institutions, nonprofit organizations, industrial and financial corporations of all sizes, and commercial enterprises (called gateways or service provider...
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blue whale
blue whale a baleen whale , Balaenoptera musculus. Also called the sulphur-bottom whale and Sibbald's rorqual, it is the largest animal that has ever lived. Blue whales have been known to reach a length of 100 ft (30.5 m) and to weigh as much as 120 tons; average length is about 75 ft (23 m). Th...
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store
store commonly a shop or stall for the retail sale of commodities, but also a place where wholesale supplies are kept, exhibited, or sold. Retailing—the sale of merchandise to the consumer—is one of the oldest businesses in the world and was practiced in prehistoric times.
Total re...
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book publishing
book publishing The term publishing means, in the broadest sense, making something publicly known. Usually it refers to the issuing of printed materials, such as books, magazines, periodicals, and the like. There is, however, great latitude of meaning, because publishing has never emerged, and ca...
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exploration
exploration travel to a part of the earth that is relatively unknown to the traveler's culture, historically often motivated by a desire for colonization, conquest, or trade.
See also space exploration , geography , and articles on localities, e.g., Africa , Arctic, the , Australia .
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Kyoto Protocol
Kyoto Protocol (11 Dec. 1997) The first international agreement in which the world's industrial nations concluded a verifiable agreement to reduce their emissions of six greenhouse gasses in order to prevent global warming. By 2012, the 174 signatory states agreed to reduce emissions by 5.2 per cent...
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sea anemone
sea anemone , any of the relatively large, predominantly solitary polyps (see polyp and medusa ) of the class Anthozoa, phylum Cnidaria. Unlike the closely related corals, these organisms do not have a skeleton. Sea anemones occur everywhere in the oceans, at all depths, but are particularly abunda...
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weather balloon
weather balloon balloon used in the measurement and evaluation of mostly upper atmospheric conditions (see atmosphere ). Information may be gathered during the vertical ascent of the balloon through the atmosphere or during its motions once it has reached a predetermined maximum altitude. Today,...
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