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Jodrell Bank Observatory
Jodrell Bank Observatory , observatory for radio astronomy located at Jodrell Bank, Macclesfield, Cheshire, England. Founded in 1945 on the site of a botanical experiment station, it is administered by the Univ. of Manchester. Originally known as the Jodrell Bank Experimental Station, it was offic...
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radio astronomy
radio astronomy study of celestial bodies by means of the electromagnetic radio frequency waves they emit and absorb naturally.
Radio Telescopes
Radio waves emanating from celestial bodies are received by specially constructed antennas, called radio telescopes, whose use corresponds to th...
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Gröte Reber
Gröte Reber 1911-2002, American radio engineer, b. Chicago, Ill. After graduating from the Armour Institute of Technology (now the Illinois Institute of Technology) in 1933, Reber worked for several radio manufacturers and radio stations. Intrigued by Karl Jansky's discovery of cosmic radio ...
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radio
radio transmission or reception of electromagnetic radiation in the radio frequency range. The term is commonly applied also to the equipment used, especially to the radio receiver.
Uses of Radio Waves
The prime purpose of radio is to convey information from one place to another throu...
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Lee De Forest
Lee De Forest 1873-1961, American inventor, b. Council Bluffs, Iowa, grad. Yale, 1896. He was a pioneer in the development of wireless telegraphy, sound pictures, and television. His triode (1906) made practicable transcontinental telephony, both wire and wireless, and led to the foundation of the ...
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Robert Woodrow Wilson
Robert Woodrow Wilson 1936-, American radio astronomer, b. Houston, Tex., Ph.D. California Institute of Technology, 1962. In 1964 he and co-researcher Arno Penzias began monitoring radio waves in the Milky Way galaxy with a radio telescope and discovered cosmic background radiation. Their discove...
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altimeter
altimeter , device for measuring altitude. The most common type is an aneroid barometer calibrated to show the drop in atmospheric pressure in terms of linear elevation as an airplane, balloon, or mountain climber rises. It shows height above sea level, but not above such land features as hills, m...
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National Radio Astronomy Observatory
National Radio Astronomy Observatory (NRAO), federal observatory for radio astronomy , founded in 1956 and operated under contract with the National Science Foundation by Associated Universities, Inc., a group of major universities. The headquarters are at Charlottesville, Va.; the original observ...
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static
static term formerly use to describe electrical noise in radio reception, especially noise that originates outside a transmitter and receiver, e.g., in the atmosphere or in man-made devices. In general, a frequency modulation (FM) radio receiver is less susceptible to such noise than one using ...
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Karl Guthe Jansky
Karl Guthe Jansky 1905-50, American radio engineer; b. Norman, Okla. After graduating (1927) from the Univ. of Wisconson, he joined the Bell Telephone Laboratories. While trying to determine the causes of radio communications static, Jansky discovered (1931) radio waves from extraterrestrial source...
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