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Alcalá Zamora, Niceto

(Encyclopedia)Alcalá Zamora, Niceto nēthāˈtō älkäläˈ thämōˈrä [key], 1877–1949, Spanish statesman and president of Spain (1931–36). After holding several cabinet posts under the monarchy, he became...

hydraulics

(Encyclopedia)hydraulics, branch of engineering concerned mainly with moving liquids. The term is applied commonly to the study of the mechanical properties of water, other liquids, and even gases when the effects ...

Achilles' tendon

(Encyclopedia)Achilles' tendon (tendo calcaneus) tĕnˈdō kălkāˈnēəs [key], sinew prominent at the back of the ankle, connecting the tendons of the calf muscles to the heelbone. When the musculature contracts...

Arnoldson, Klas Pontus

(Encyclopedia)Arnoldson, Klas Pontus kläs pônˈtəs ärˈnôldsōn [key], 1844–1916, Swedish journalist and peace advocate. His untiring efforts for peace were rewarded by the 1908 Nobel Peace Prize, which he s...

Schildkraut, Rudolph

(Encyclopedia)Schildkraut, Rudolph shĭltˈkrout [key], 1862–1930, Austrian actor. He was a member of Max Reinhardt's Deutsches Theater, Berlin. In 1911 he came to the United States and until 1922 was a star of t...

Pinza, Ezio

(Encyclopedia)Pinza, Ezio ātsˈyō pēnˈtsä [key], 1892–1957, Italian bass, b. Rome, studied at the Bologna Conservatory. After military service (1915–19), he resumed his operatic career in Rome, later singi...

Neptune, in astronomy

(Encyclopedia)Neptune, in astronomy, 8th planet from the sun at a mean distance of about 2.8 billion mi (4.5 billion km) with an orbit lying between those of Uranus and the dwarf planet Pluto; its period of revolut...

binary star

(Encyclopedia)CE5 A. Eclipsing binary: Primary component passing behind secondary (dimmer) component B. Light curve for eclipsing binary binary star or binary system, pair of stars that are held together by the...

Castiglione, Baldassare, Conte

(Encyclopedia)Castiglione, Baldassare, Conte bäldäs-säˈrā kōnˈtā kästēlyōˈnā [key], 1478–1529, Italian soldier, author, and statesman attached to the court of the duke of Milan and later in the servi...

Steen, Jan

(Encyclopedia)Steen, Jan yän stān [key], 1626–79, Dutch genre painter, b. Leiden. He studied in Utrecht and in Haarlem under Van Ostade and Van Goyen, whose daughter he married. His huge production of paintings...