Word: hertzian
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Dates: during 1920-1929
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January 17--"X-Rays. Cosmic Rays. Hertzian Waves...
...Circuit Court was at pains to dispel all doubt as to whether or not I was actually the founder of wireless telegraphy. In a magnificently flowery peroration, quite appropriately Latin in feeling, His Honor pictured me as a fearless forerunner, embarking courageously upon a limitless sea of Hertzian waves...
...across, caused by some disarrangement of the internal molten solar humors. Dr. David Todd of Amherst College, in reporting the spot to laity, reminded them to look next for displays of the aurora borealis. Just what influence the sun exerts-whether cathode rays, Hertzian waves or negatively charged particles-to cause "the dance of the dead men," the "merry dancers," the Polar or Northern Lights, is undetermined by scientists. But two centuries of observation have indicated that sunspot years are aurora borealis years, the phenomenon, ordinarily confined to polar regions, being sometimes visible as far south as Yucatan...
...little-known shorter vibrations; then the famed X-rays; then, shortest of all known rays, the gamma rays given off by radium. On the infra or long wave side of visible light come infrared, then longer heat waves (16 mil- lionths to 12 thousandths of an inch), then Hertzian or radio waves, measuring from a few metres to several miles in length. The longest waves in the spectrum are the slow pulsations of the alternating current, often several thousand miles in length...