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Wright brothers

(Encyclopedia)Wright brothers, American airplane inventors and aviation pioneers. Orville Wright 1871–1948, was born in Dayton, Ohio, and Wilbur Wright, 1867–1912, near New Castle, Ind. Their interest in aviati...

Bowles, Paul

(Encyclopedia)Bowles, Paul, 1910–99, American writer and composer, b. New York City. He studied in Paris with Virgil Thomson and Aaron Copland and composed (1930s–40s) a number of modernist operas, ballets, son...

Sinclair, Upton

(Encyclopedia)Sinclair, Upton (Upton Beall Sinclair), 1878–1968, American novelist and socialist activist, b. Baltimore, grad. College of the City of New York, 1897. He was one of the muckrakers, and a dedication...

Browning, Elizabeth Barrett

(Encyclopedia)Browning, Elizabeth Barrett, 1806–61, English poet, b. Durham. A delicate and precocious child, she spent a great part of her early life in a state of semi-invalidism. She read voraciously—philoso...

Kipling, Rudyard

(Encyclopedia)Kipling, Rudyard, 1865–1936, English author, b. Bombay (now Mumbai), India. Educated in England, Kipling returned to India in 1882 and worked as an editor on a Lahore paper. His early poems were col...

hydrazine

(Encyclopedia)hydrazine hīˈdrəzēnˌ [key], chemical compound, formula NH2NH2, m.p. 1.4℃, b.p. 113.5℃, specific gravity 1.011 at 15℃. It is very soluble in water and soluble in alcohol. At ordinary tempera...

denaturation

(Encyclopedia)denaturation, term used to describe the loss of native, higher-order structure of protein molecules in solution. Most globular proteins exhibit complicated three-dimensional folding described as secon...

chiropractic

(Encyclopedia)chiropractic kīrəprăkˈtĭk [key] [Gr.,=doing by hand], medical practice based on the theory that all disease results from a disruption of the functions of the nerves. The principal source of inter...

silica

(Encyclopedia)silica or silicon dioxide, chemical compound, SiO2. It is insoluble in water, slightly soluble in alkalies, and soluble in dilute hydrofluoric acid. Pure silica is colorless to white. It occurs in sev...

plasma

(Encyclopedia)plasma, in physics, fully ionized gas of low density, containing approximately equal numbers of positive and negative ions (see electron and ion). It is electrically conductive and is affected by magn...