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gamma-ray astronomy

(Encyclopedia)gamma-ray astronomy, study of astronomical objects by analysis of the most energetic electromagnetic radiation they emit. Gamma rays are shorter in wavelength and hence more energetic than X rays (see...

Giacconi, Riccardo

(Encyclopedia)Giacconi, Riccardo, 1931–2018, Italian-American astrophysicist, b. Milan, Italy, Ph.D. Univ. of Milan 1954. He was a researcher at American Science and Engineering Corporation (1959–73), professor...

field, in physics

(Encyclopedia)field, in physics, region throughout which a force may be exerted; examples are the gravitational, electric, and magnetic fields that surround, respectively, masses, electric charges, and magnets. The...

Gibson, William

(Encyclopedia)Gibson, William, 1948–, Canadian science fiction writer, b. Conway, S.C., moved to Canada in the 1960s. He first published short stories in sci-fi magazines; many are collected in Burning Chrome (19...

rocket, in aeronautics

(Encyclopedia)CE5 Relative positions of the components of the Saturn V rocket, the U.S. space vehicle used in the moon missions rocket, any vehicle propelled by ejection of the gases produced by combustion of s...

European Bank for Reconstruction and Development

(Encyclopedia)European Bank for Reconstruction and Development (EBRD), international financial institution that invests primarily in the private sector to promote entrepreneurship and foster the development of demo...

administrative law

(Encyclopedia)administrative law, law governing the powers and processes of administrative agencies. The term is sometimes used also of law (i.e., rules, regulations) developed by agencies in the course of their op...

Cominform

(Encyclopedia)Cominform kŏmˈĭnfôrm [key] [acronym for Communist Information Bureau], information agency organized in 1947 and dissolved in 1956. Its members were the Communist parties of Bulgaria, Czechoslovaki...

Johns Hopkins University

(Encyclopedia)Johns Hopkins University, mainly at Baltimore. Johns Hopkins in 1867 had a group of his associates incorporated as the trustees of a university and a hospital, endowing each with $3.5 million. Daniel ...

Reconstruction Finance Corporation

(Encyclopedia)Reconstruction Finance Corporation (RFC), former U.S. government agency, created in 1932 by the administration of Herbert Hoover. Its purpose was to facilitate economic activity by lending money in th...