Word: wavelength
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Dates: during 1950-1959
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...Maser," the technical name for the amplifier, is not the first of its kind, but the University's maser is the first to run successfully in the twenty-one centimeter wavelength band--the frequency of emission from interstellar hydrogen...
Since the maser operates on the 21 centimeter wavelength band, it can detect galactic signals 1000 times weaker than those detected by current equipment...
...owned 50% by American Telephone & Telegraph, 41% by British Post Office, 9% by Canada's Overseas Telecommunications) was an absolute necessity. Starting in 1927, when transatlantic radiophone service began, the volume of New York-London messages alone had grown from 2,000 to 101,500 in 1955. Meanwhile, wavelength limitations not only overloaded but doomed the transatlantic radiophones to a meager 15 circuits that were at the mercy of static, sunspot interference and fading. Following bursts of sunspot activity, delays on overseas calls sometimes ran up to seven hours; occasionally the blackouts have been known to last for days...
...March 1951, Purcell and Ewen announced that these hydrogen clouds radiate at a wavelength of 21 centimenters, and Ewen got his Ph.D. in Physics. The latter still insists, "Purcell provided the brains, I just the brawn...
...Pawtucket network should get any louder, the College station will have to move on to another wavelength...