Word: viele
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Dates: during 1937-1937
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...Washington last week Physicist Lloyd Viel Berkner of the Carnegie Institution told what is known or surmised, in the light of most recent researches, about ''The Electrical State of the Earth's Outer Atmosphere." When radio waves of different frequencies are directed up at the ionosphere, some are bounced back to the starting point where the elapsed time is recorded while others escape into space. From this data the heights and densities of the layers can be calculated. Of the three major layers, said Dr. Berkner, the lowest (E) averages 65 miles high, the next...