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Kara Sea

(Encyclopedia)Kara Sea kärˈə [key], Rus. Karskoye More, shallow section of the Arctic Ocean, off N Russia, between Severnaya Zemlya and Novaya Zemlya. It has an average depth of 420 ft (128 m). It receives the O...

melting point

(Encyclopedia)melting point, temperature at which a substance changes its state from solid to liquid. Under standard atmospheric pressure different pure crystalline solids will each melt at a different specific tem...

latent heat

(Encyclopedia)latent heat, heat change associated with a change of state or phase (see states of matter). Latent heat, also called heat of transformation, is the heat given up or absorbed by a unit mass of a substa...

hunting

(Encyclopedia)hunting, act of seeking, following, and killing wild animals for consumption or display. It differs from fishing in that it involves only land animals. Hunting was a necessary activity of early humans...

Comaneci, Nadia

(Encyclopedia)Comaneci, Nadia nädyä kōmänēch [key], 1961–, Romanian-American gymnast. Under the tutelage of coach Bela Karolyi, she rose to prominence in the celebrated Romanian gymnastics program. Comaneci ...

boomerang

(Encyclopedia)boomerang bo͞oˈmərăngˌ [key], special form of throwing stick, used mainly by the aborigines of Australia. Other forms of throwing sticks were used by the peoples of ancient Egypt, Ethiopia, and I...

Superior, Lake

(Encyclopedia)Superior, Lake, largest freshwater lake in the world, 31,820 sq mi (82,414 sq km), 350 mi (563 km) long and 160 mi (257 km) at its greatest width, bordered on the W by NE Minnesota, on the N and E by ...

Americas, antiquity and prehistory of the

(Encyclopedia)Americas, antiquity and prehistory of the, study of the origins of the aboriginal peoples of the Americas. Archaeologists believe humans had entered and occupied much of the Americas by the end of the...

Iapetus, in astronomy

(Encyclopedia)Iapetus īăpˈĭtəs [key], in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn VIII (or S8), Iapetus is 907 mi (1460 km) in diameter, orbits Saturn at a mean...

Tikhonov, Viktor Vasilyevich

(Encyclopedia)Tikhonov, Viktor Vasilyevich, 1930–2014, Soviet and Russian ice hockey player and coach, b. Moscow. As a defenseman (1949–63), he won four national championships (1951–54) with the Soviet air fo...