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Wallace's line
(Encyclopedia) Wallace's line, imaginary line postulated by A. R. Wallace as the dividing line between Asian and Australian fauna in the Malay Archipelago. It passes between Bali and Lombok islands…Mason-Dixon Line
(Encyclopedia) Mason-Dixon Line, boundary between Pennsylvania and Maryland (running between lat. 39°43′26.3″N and lat. 39°43′17.6″N), surveyed by the English team of Charles Mason, a mathematician…Downs, The
(Encyclopedia) Downs, The, roadstead, c.8 mi (13 km) long and 6 mi (9.7 km) wide, between North Foreland and South Foreland, off Deal, Kent, SE England, in the English Channel. It is protected,…English Channel
(Encyclopedia) English Channel, Fr. La Manche [the sleeve], arm of the Atlantic Ocean, c.350 (560 km) long, between France and Great Britain. It is 112 mi (180 km) wide at its west entrance, between…synapse
(Encyclopedia) synapsesynapsesĭnˈăps [key], junction between various signal-transmitter cells, either between two neurons or between a neuron and a muscle or gland. A nerve impulse reaches the…arc, in electricity
(Encyclopedia) arc, in electricity, highly luminous and intensely hot discharge of electricity between two electrodes. The arc was discovered early in the 19th cent. by the English scientist Sir…Øresund
(Encyclopedia) ØresundØresundörəsŭndˈ [key] or the Sound, Swed. Öresund, c.45 mi (70 km) long, strait between the Danish island of Sjælland and Sweden, connecting the Kattegat with the Baltic Sea, to…phase, in astronomy
(Encyclopedia) CE5 Phases of the moon phase, in astronomy, the measure of how much of the illuminated surface of a planet or satellite can be seen from a point at a distance from that body; the…Georgia, Strait of
(Encyclopedia) Georgia, Strait of, channel, c.150 mi (240 km) long, between the mainland of British Columbia and Vancouver Island, Canada, between Puget Sound and Queen Charlotte Sound. It forms part…viscosity
(Encyclopedia) viscosity, resistance of a fluid to flow. This resistance acts against the motion of any solid object through the fluid and also against motion of the fluid itself past stationary…Trending
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