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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...snowmobile
(Encyclopedia)snowmobile, vehicle designed to travel over snow, ice, and similar surfaces that offer limited traction and weight-supporting capability. As the performance of the vehicle depends to a large extent on...swimming
(Encyclopedia)swimming, self-propulsion through water, often as a form of recreation or exercise or as a competitive sport. It is mentioned in many of the classics in connection with heroic acts or religious rites....lightning
(Encyclopedia)lightning, electrical discharge accompanied by thunder, commonly occurring during a thunderstorm. The discharge may take place between one part of a cloud and another part (intracloud), between one cl...Palmer, Arnold Daniel
(Encyclopedia)Palmer, Arnold Daniel, 1929–2016, American golfer, b. Latrobe, Pa. The son of a professional golfer, he won three regional titles in his youth. Turning professional after winning the 1954 U.S. amate...igloo
(Encyclopedia)igloo ĭgˈlo͞o [key] [Inuit,=house]. The Eskimos traditionally had three types of houses. A summer house, which was basically a tent, a winter house, which was usually partially dug into the ground ...New Zealand spinach
(Encyclopedia)New Zealand spinach, succulent annual (Tetragonia expansa) of Australia, New Zealand, Japan, and S South America, grown for the edible leaves. The plant grows prostrate, often spreading to cover sever...Browse by Subject
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