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Beaufort, Margaret, countess of Richmond and Derby

(Encyclopedia)Beaufort, Margaret, countess of Richmond and Derby bōˈfərt, därˈbē [key], 1443–1509, English noblewoman, mother of Henry VII. She was the daughter and heiress of John, 1st duke of Somerset, an...

Stephen, Saint, duke and king of Hungary

(Encyclopedia)Stephen, Saint, or Stephen I, 975–1038, duke (997–1001) and first king (1001–38) of Hungary, called the Apostle of Hungary. The Hungarian state may be said to date from his reign. Because he con...

British Imperial System of weights and measures

(Encyclopedia)British Imperial System of weights and measures: see English units of measurement. ...

Victoria, queen of Great Britain and Ireland

(Encyclopedia)Victoria (Alexandrina Victoria) ălˌĭgzăndrēˈnə [key], 1819–1901, queen of Great Britain and Ireland (1837–1901) and empress of India (1876–1901). She was the daughter of Edward, duke of K...

U.S. Customary System of weights and measures

(Encyclopedia)U.S. Customary System of weights and measures: see English units of measurement. ...

phosphorylation

(Encyclopedia)phosphorylation, chemical process in which a phosphate group is added to an organic molecule. In living cells phosphorylation is associated with respiration, which takes place in the cell's mitochondr...

magnetism

(Encyclopedia)CE5 Lines of induction around a single bar magnet and between opposite poles of different magnets magnetism, force of attraction or repulsion between various substances, especially those made of i...

futurism

(Encyclopedia)futurism, Italian school of painting, sculpture, and literature that flourished from 1909, when Filippo Tommaso Marinetti's first manifesto of futurism appeared, until the end of World War I. Carlo Ca...

Argonne National Laboratory

(Encyclopedia)Argonne National Laboratory, research center, based in Argonne, Ill., 27 mi (43 km) SW of downtown Chicago, with other facilities at the Idaho National Engineering Laboratory, 50 mi (80 km) W of Idaho...

Martin, 1356–1410, king of Aragón and count of Barcelona

(Encyclopedia)Martin, 1356–1410, king of Aragón and count of Barcelona (c.1395–1410) and, as Martin II, king of Sicily (1409–10). He succeeded his brother, John I, in Aragón and became king of Sicily on the...