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Nimrod
Nimrod in the Bible, descendant of Cush who is recorded as a mighty hunter.
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Freedom of Information Act
Freedom of Information Act (1966), law requiring that U.S. government agencies release their records to the public on request, unless the information sought falls into a category specifically exempted, such as national security, an individual's right to privacy , or internal agency management. The...
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record player
record player or phonograph, device for reproducing sound that has been recorded as a spiral, undulating groove on a disk. This disk is known as a phonograph record, or simply a record (see sound recording ). In using a record player, a record is placed on the player's motor-driven turntable, ...
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tape recorder
tape recorder device for recording information on strips of plastic tape (usually polyester) that are coated with fine particles of a magnetic substance, usually an oxide of iron, cobalt, or chromium. The coating is normally held on the tape with a special binder. Tape recorders can store many diff...
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stereophonic sound
stereophonic sound sound recorded simultaneously through two or more electronic channels. For live recordings, microphones are placed in different positions relative to the sound source. The recorded sound is played back through loudspeakers placed more or less as the recording microphones were pla...
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William Thomson Kelvin, 1st Baron
William Thomson Kelvin, 1st Baron 1824-1907, British mathematician and physicist, b. Belfast. He was professor of natural philosophy at the Univ. of Glasgow (1846-99). He is known especially for his work on heat and electricity. In thermodynamics his work of coordinating the theories of heat held...
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Jahaz
Jahaz , Jahaza, Jahazah , or Jahzah , in the Bible, unidentified town, E of the Dead Sea. Israel's defeat there of the Amorites is recorded on the Moabite stone.
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barograph
barograph instrument used to make a continuous recording of atmospheric pressure. The pressure-sensitive element, a partially evacuated metal cylinder, is linked to a pen arm in such a way that the vertical displacement of the pen is proportional to the changes in the atmospheric pressure. The pen ...
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pipe rolls
pipe rolls ancient records of the crown revenue and expenditures of England, so called, probably, because of the pipelike form of the rolled parchments on which these records were kept. The oldest extant pipe roll dates from the 31st year of the reign of Henry I (1130), and from 1156 they are almos...
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pulsar
pulsar in astronomy, a neutron star that emits brief, sharp pulses of energy instead of the steady radiation associated with other natural sources. The study of pulsars began when Antony Hewish and his students at Cambridge built a primitive radio telescope to study a scintillation effect on radi...
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