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Torrijos Espino, Martín Erasto

(Encyclopedia)Torrijos Espino, Martín Erasto, 1963–, Panamanian political leader, president of Panama (2004–), b. Panama City. The son of Gen. Omar Torrijos Herrera, he studied economics and political science ...

Owen, Sir Richard

(Encyclopedia)Owen, Sir Richard, 1804–92, English zoologist and comparative anatomist. He studied medicine in Edinburgh and in 1827 joined the staff of the Hunterian museum of the Royal College of Surgeons, where...

Tata

(Encyclopedia)Tata täˈtä [key], Parsi family of Indian industrialists, centered at Mumbai. The Tata enterprises, which encompass vast holdings in iron and steel, motor vehicles, power utilities, financial servic...

speleology

(Encyclopedia)speleology spēlēŏlˈəjē [key], systematic exploration of caves, popularly called spelunking. It includes the measuring and mapping of caves and reporting on the flora and fauna found in them. One...

Burbidge, Margaret

(Encyclopedia)Burbidge, Margaret, 1925–2020, Anglo-American astronomer, b. England as Eleanor Margaret Peachey. Burbidge; her husband, Geoffrey Burbidge; William Fowler; and Sir Fred Hoyle showed (1956) how heavi...

Brogan, Denis William

(Encyclopedia)Brogan, Denis William brōˈgən [key], 1900–1974, British historian and political scientist, b. Glasgow, Scotland. He was educated at the Univ. of Glasgow, Oxford, and Harvard and was professor of ...

Blumenbach, Johann Friedrich

(Encyclopedia)Blumenbach, Johann Friedrich yōhänˈ frēˈdrĭkh blo͞oˈmənbäkh [key], 1752–1840, German naturalist and anthropologist. He introduced and developed the science of comparative anatomy in German...

Unity

(Encyclopedia)Unity, religious movement incorporated as the Unity School of Christianity, with headquarters at Lee's Summit, Mo. Although the movement used the name Unity after 1891, it was founded earlier by Charl...

Watt, James

(Encyclopedia)Watt, James, 1736–1819, Scottish inventor. While working at the Univ. of Glasgow as an instrument maker, Watt was asked to repair a model of Thomas Newcomen's steam engine. He devised improvements t...

measurement

(Encyclopedia)measurement, determination of the magnitude of a quantity by comparison with a standard for that quantity. Quantities frequently measured include time, length, area, volume, pressure, mass, force, and...