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galaxy

(Encyclopedia) CE5 Hubble classification of galaxies: Elliptical galaxies (E) are classified according to the degree of flattening of the ellipse. Spiral galaxies (S) and barred spiral galaxies (SB) are classifie...

instrument-landing system

(Encyclopedia) CE5 Instrument-landing system (ILS), the most common instrument-landing approach system, uses two beams to guide an airplane. instrument-landing system (ILS), ground-based radio system designed to...

Limbaugh, Rush

(Encyclopedia)Limbaugh, Rush (Rush Hudson Limbaugh 3d) lĭmˈbô [key], 1951–2021, conservative radio...

National Science Foundation

(Encyclopedia)National Science Foundation (NSF), an independent agency in the executive branch of the U.S. federal government concerned with promoting a national science policy by supporting basic research and educ...

Radio Free Europe

(Encyclopedia)Radio Free Europe (RFE), broadcasting organization established in 1950 with the stated mission of promoting democratic values and institutions. Its original purpose was to broadcast news to countries ...

varicose vein

(Encyclopedia)varicose vein, superficial vessel that is abnormally lengthened, twisted, or dilated, seen most often on the legs and thighs. Varicose veins develop spontaneously, and are usually attributed to a here...

Clark, Dick

(Encyclopedia)Clark, Dick,, 1929-2012, American radio and TV broadcaster and producer, b. Bronxville, N.Y., as Richard Wagstaff Clark; Syracuse Univ. (B.A., 1951). Be...

Motala

(Encyclopedia)Motala mo͞oˈtäˌlä [key], city (1990 pop. 29,630), Östergötland co., S Sweden, on Lake Vättern and on the Göta Canal. It is an important lake port and an industrial center. Manufactures includ...

buoy

(Encyclopedia)buoy boi, bo͞oˈē [key], float anchored in navigable waters to mark channels and indicate dangers to navigation (isolated rocks, mine fields, cables, and the like). The shape, color, number, and mar...

Prokhorov, Aleksandr Mikhailovich

(Encyclopedia)Prokhorov, Aleksandr Mikhailovich əlyĭksänˈdər mēkhīˈləvĭch prôˈkhərəf [key], 1916–2002, Russian physicist, b. Atherton, Queensland, Australia. In 1923 he was taken to the Soviet Union...
 

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