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Hunt, Henry

(Encyclopedia)Hunt, Henry, 1773–1835, English radical politician. A powerful orator, popular with the laboring classes, Hunt was quarrelsome and stubborn but a sincere proponent of electoral and other reforms. He...

Perley, Sir George Halsey

(Encyclopedia)Perley, Sir George Halsey, 1857–1938, Canadian statesman, b. Lebanon, N.H. As a child, he moved with his parents to Ottawa. In 1904 he was elected to the Canadian House of Commons as a Conservative,...

safety lamp

(Encyclopedia)safety lamp, oil lamp designed for safe use in mines and other places where flammable gases such as firedamp (see damp) may be present. Its invention (c.1816) is usually attributed to Sir Humphry Davy...

cinéma vérité

(Encyclopedia)cinéma vérité, a style of filmmaking that attempts to convey candid realism. Often employing lightweight, hand-held cameras and sound equipment, it shows people in everyday situations and uses auth...

calcium hydroxide

(Encyclopedia)calcium hydroxide, Ca(OH)2, colorless crystal or white powder. It is prepared by reacting calcium oxide (lime) with water, a process called slaking, and is also known as hydrated lime or slaked lime. ...

Kuhn, Walt

(Encyclopedia)Kuhn, Walt, 1880–1949, American painter, b. New York City. At the age of 19 he worked as a cartoonist in San Francisco, contributing later to Life magazine. After travel and study in Europe he devot...

Barron, Clarence Walker

(Encyclopedia)Barron, Clarence Walker bârˈən [key], 1855–1928, American financial editor, b. Boston. He worked on the Boston Daily News, then on the Evening Transcript, and in 1887 founded the Boston News Bure...

Siegbahn, Kai Manne Borje

(Encyclopedia)Siegbahn, Kai Manne Borje, 1918–2007, Swedish physicist, son of Karl Siegbahn. He earned his doctorate at the Univ. of Stockholm in 1944 and later taught at the Royal Institute of Technology, Stockh...

Firbank, Ronald

(Encyclopedia)Firbank, Ronald (Arthur Annesley Ronald Firbank), 1886–1926, English author. Of a delicate and eccentric nature, Firbank lived the life of a leisured aesthete. His novels, which have appealed to a s...

Euler-Chelpin, Hans Karl August Simon von

(Encyclopedia)Euler-Chelpin, Hans Karl August Simon von, 1873–1964, Swedish biochemist, b. Germany, Ph.D. Univ. of Berlin, 1895. He spent his entire career at Stockholm Univ., first as professor and later as dire...