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atomic force microscope

(Encyclopedia)atomic force microscope (AFM), device that uses a spring-mounted probe to image individual atoms on the surface of a material, first developed by Gerd Binnig in 1986. Unlike the scanning tunneling mic...

lupine

(Encyclopedia)lupine or lupin lo͞oˈpĭn [key], any species of the genus Lupinus, annual or perennial herbs or shrubs of the family Leguminosae (pulse family). These leguminous plants have been cultivated in the M...

hula

(Encyclopedia)hula, traditional Hawaiian dance usually performed standing with symbolically descriptive arm and hand movements and gracefully sensual undulations of the hips; it is also done in a sitting position. ...

hydrology

(Encyclopedia)hydrology, study of water and its properties, including its distribution and movement in and through the land areas of the earth. The hydrologic cycle consists of the passage of water from the oceans ...

hostage

(Encyclopedia)hostage, person held by another as a guarantee that certain actions or promises will or will not be carried out. During periods of internal turmoil, insurgents often seize hostages; recent examples in...

constructivism

(Encyclopedia)constructivism, Russian art movement founded c.1913 by Vladimir Tatlin, related to the movement known as suprematism. After 1916 the brothers Naum Gabo and Antoine Pevsner gave new impetus to Tatlin's...

Fama, Eugene Francis

(Encyclopedia)Fama, Eugene Francis, 1939–, 1939–, U.S. economist, b. Boston, Mass., grad. Univ. of Chicago (M.B.A. 1963, Ph.D. 1964). He has taught at the Univ. of Chicago's Graduate School of Business since 19...

Twombly, Cy

(Encyclopedia)Twombly, Cy (Edwin Parker Twombly, Jr.), 1928–2011, American painter, b. Lexington, Va., studied Boston Museum School, Washington and Lee Univ., Lexington, Va., Art Students' League, New York City. ...

transit instrument

(Encyclopedia)transit instrument or transit, telescope devised to observe stars as they cross the meridian and used for determining time. Its viewing tube swings on a rigid horizontal axis restricting its movements...

Read, Sir Herbert

(Encyclopedia)Read, Sir Herbert, 1893–1968, English poet and critic. His studies at the Univ. of Leeds were interrupted by World War I, in which he served with a Yorkshire regiment. After the war he completed his...