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Watson, Thomas John, Jr.

(Encyclopedia)Watson, Thomas John, Jr., 1914–93, American industrialist, b. Dayton, Ohio. The son of Thomas John Watson, Sr., the founder of the International Business Machines Corp. (IBM), he joined the family b...

krypton

(Encyclopedia)krypton krĭpˈtŏn [key] [Gr.,=hidden], gaseous chemical element; symbol Kr; at. no. 36; at. wt. 83.798; m.p. −156.6℃; b.p. −152.3℃; density 3.73 grams per liter at STP; valence usually 0. Kr...

protocol

(Encyclopedia)protocol prōˈtəkŏl [key], term referring to rules governing diplomatic conduct or to a variety of written instruments. Examples of the latter are authenticated minutes of international conferences...

Area 51

(Encyclopedia)Area 51, name for a U.S. military site, S Nev., c.80 mi (130 km) NNW of Las Vegas. Shrouded in secrecy since the mid-20th cent., it is located within the U.S. Air Force's enormous Nevada Test and Trai...

Gambier Islands

(Encyclopedia)Gambier Islands gămˈbĭr [key], volcanic islands (6 sq mi/15.5 sq km), South Pacific, near the ...

de Gennes, Pierre-Gilles

(Encyclopedia)de Gennes, Pierre-Gilles, 1932–2007, French physicist, Ph.D. Center for Nuclear Studies at Saclay, France, 1958. He was a professor at the Univ. of Paris, Orsay, from 1961 to 1971, when he joined th...

Connecticut, river, United States

(Encyclopedia)Connecticut, longest river in New England, 407 mi (655 km) long, rising in the Connecticut Lakes, N N.H., near the Quebec border, and flowing S along the Vt.-N.H. line, then across Mass. and Conn. to ...

Fitch, Val Logsdon

(Encyclopedia)Fitch, Val Logsdon, 1923–2015, American nuclear physicist, b. Merriman, Neb., Ph.D. Columbia, 1954. During World War II Fitch was drafted into the army and worked on the detonator for the atomic bom...

Saint-Étienne

(Encyclopedia)Saint-Étienne săNtātyĕnˈ [key], city (1990 pop. 201,569), capital of Loire dept., SE France, in the Massif Central. The metropolitan region occupies much of what was once a major coal-mining and ...

tritium

(Encyclopedia)tritium trĭtˈēəm [key], radioactive isotope of hydrogen with mass number 3. The tritium nucleus, called a triton, contains one proton and two neutrons. It has a half-life of 12.5 years and decays ...