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Boleslaus II

(Encyclopedia)Boleslaus II, c.1039–1081, duke (1058–76), and later king (1076–79) of Poland; son and successor of Casimir I. Throughout his reign he opposed the influence of the Holy Roman Empire. He asserted...

crane, machine

(Encyclopedia)crane, hoisting machine for lifting heavy loads and transferring them from one place to another, ordinarily over distances of not more than 200 ft (60 m). Cranes have a long reach and can lift loads t...

exponent

(Encyclopedia)exponent, in mathematics, a number, letter, or algebraic expression written above and to the right of another number, letter, or expression called the base. In the expressions x2 and xn, the number 2 ...

Meiji

(Encyclopedia)Meiji māˈjē [key], 1852–1912, reign name of the emperor of Japan from 1867 to 1912; his given name was Mutsuhito. He ascended the throne when he was 15. A year later the shogun fell, and the powe...

Faust

(Encyclopedia)Faust yōˈhän [key], fl. 16th cent., learned German doctor who traveled widely, performed magical feats, and died under mysterious circumstances. According to legend he had sold his soul to the devi...

Burkina Faso

(Encyclopedia)CE5 Burkina Faso burkēˈnə fäˈsō [key], republic (2020 est. pop. 20,900,000), 105,869 sq mi (274,200 sq ...

microwave oven

(Encyclopedia)microwave oven, device that uses microwaves to rapidly cook food. The microwaves cause water molecules in the food to vibrate, producing heat, which is distributed through the food by induction. A spe...

Midas

(Encyclopedia)Midas mīˈdəs [key], in Greek mythology, king of Phrygia. Because he befriended Silenus, the oldest of the satyrs, Dionysus granted him the power to turn everything into gold by touch. But when even...

mass-luminosity relation

(Encyclopedia)mass-luminosity relation, in astronomy, law stating that the luminosity of a star is proportional to some power of the mass of the star. More massive stars are in general more luminous. For stars on t...

Muscle Shoals

(Encyclopedia)Muscle Shoals, town (1990 pop. 9,611), Colbert co., NW Ala., on the Tennessee River opposite Florence; inc. 1923. Chemicals, truck trailers, and nuts, screws, and bolts are manufactured. The river for...