Word: wavelength
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Dates: during 1940-1949
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...Civil Aeronautics Authority, Under Secretary of Commerce-Ed Noble bought New York's station WMCA for $850,000. With it he acquired a lawsuit by ex-Owner Donald Flamm, who charged that Noble had coerced him into selling cheaply, for fear FCC would take away his wavelength. Flamm won another $350,000 in court. But Noble still liked radio. So after FCC ordered NBC to divest itself of either the Red or Blue network, Ed Noble paid $8,000,000 for the Blue, the biggest deal in radio history...
This stunt was no mere atomic doodle. It promised the ideal measuring stick for which scientists have been crying. Since 1893, they had used as their primary standard the wavelength of a narrow band of red light in the spectrum of cadmium. Theoretically, a band of green light in the mercury spectrum would be even better: 1) the mercury atom, heavier than cadmium, gives light with a more sharply defined wavelength; 2) mercury vapor glows at low temperatures, while cadmium must be heated very...
...serious obstacle blocked the use of mercury. Ordinary mercury contains several isotopes which cannot be separated chemically. Since each isotope has a slightly different atomic weight, it gives off light of slightly different wavelength. This variability makes the light of ordinary mixed mercury too fuzzy for use as a standard of measurement...
...first step in dealing with enemy radar is to locate it and determine its wavelength or frequency. This reconnaissance is done by "ferret" planes, specially equipped with electronic "search receivers," which pick up and locate operating enemy radar like stations on a home radio...
...other major jamming method, "Window", involves the seemingly simple procedure of dropping huge quantities of light aluminum foil from planes on bombing missions. It was discovered the small strips of aluminum, which is an excellent radio reflector, would, if cut to one half a radar's wavelength, send back a disproportionately strong echo...