To explore th6 earth 'a upper atmosphere and determine its effect on radio transmission, magnetism, and tho northern lights, two scientists of the Carnegie Institution, Washington, B.M., have perfected a unique radio apparatus. Radio waves sent out frOm the device on a number of different wave lengths strike the various layers of ionised atmosphere from 40 to 300 miles above the earth, and are re"flected back to their course. The timing and other eharacteristics of these reflected waves are expected to aid experimenters in probing many of the mysteries of outer space, just. as echoos from a submarine sounding device, reflected from the- sea bottom can be made to "describe" the contour of the ocean floor
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Hawke's Bay Herald-Tribune, Issue 69, 8 April 1937, Page 7
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116Untitled Hawke's Bay Herald-Tribune, Issue 69, 8 April 1937, Page 7
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