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July 22, 1932, Bermuda), radio pioneer who broadcast the first program of music
and voice ever transmitted. After study at Trinity College School, Port Hope, Ont.,
and Bishop's University in Lennoxville, Que., Fessenden went to Bermuda as ...
7:828g -radio emissions and hydrogen content 15:474c galaxy, Seyfert, one of a
class comprising about 2 percent of spiral galaxies, characterized by intensely
bright central nuclei and strong radiation at radio and infrared wavelengths.
Aug. 7, 1886, Monistown, N.J.—d. May 24, 1964, Maplewood, N.J.), electrical
engineer and physicist who invented the neutrodyne circuit, which made possible
commercial radio. An outstanding scholar at the Summit Academy, Summit, N.J.,
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review