If the human eye were tuned to longer wave lengths of radiation, it would be able to see radio waves. The ethereal wiggles that gird the globe with speech and music are part of the same electromagnetic spectrum which includes visible light, ultraviolet and infra-red radiation, x-rays, gamma rays from radium. Hence under ideal conditions radio waves travel at the velocity of light about 186,270 mi. per sec. and for many a year radiomen assumed that wireless signals always traveled at that pace in their journeys around Earth. Last week...
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