Word: signalling
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Dates: during 1940-1949
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...list: Airplanes promised, 152; actually sent, 101. Guns of all kinds promised, 223; sent, 114. Shells promised, 297,200; sent, 185,000. Vickers guns promised, 100; all sent. Marine mines promised, 500; sent, 400. Hand grenades promised, 50.000; all sent. Aircraft bombs promised, 20,500; sent, 15,700. Signal equipment promised, 1,300; sent, 800. Anti-tank rifles promised, 200; all sent. Respirators promised, 60,000; all sent. Greatcoats promised, 100,000; all sent. Battle dress promised, 100,000; all sent. Anti-tank mines promised, 20,000; sent, 10,000. Ambulances promised, 48; all sent...
...varies the frequency of its radio waves, keeps the intensity (power) of the signal constant. Ordinary broadcasting (amplitude modulation) maintains a fixed frequency, varies the intensity. Since static is also a series of power variations, ordinary receivers pick it up as easily as they do Jack Benny. FM receivers...
...dice cup which gives a signal when the dice have been shaken enough...
Formerly in service with Signal Corps of Russian Army in Persia, 1915-1917, Hamadan billet. Sacramento, Calif...
...three triplets of dots-is a new signal, invented and used by the Allies since the beginning of World War II. It serves a double purpose: warns that the sending vessel may soon be in distress, calls up Allied war vessels for a possible kill. Landlubbers' translation: Stand by-Submarine Sighted. After she had given her alarm last week, El Ciervo did not see the potential enemy again...