Word: scopes
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Electronic jammers are high-frequency radio transmitters which bombard a radar installation with radio waves of the radar's own frequency, thereby obscuring the detectable echo on the radar viewing scope. Allied bombers and ships were armed with these electronic jammers, labeled as "Carpet", for use in foiling detection. For defensive purposes, particularly against enemy air-borne radar, very powerful long-distance, ground-based jammers, called "Tuba", were used...
These "intelligent bombs" are limited in scope and usefulness because they have no built-in source of power, are propelled only by the speed of the plane which launches them and by gravity. The rocket-propelled bomb for the push-button war was not yet ready for unveiling. There was nothing at Dayton as futuristic, even, as last year's German...
...oscilloscope" ("scope" for short), radar's screen, which is a cathode-ray tube such as is used in television. The most common type, the "Plan Position Indicator," is a circular dial with an electronic beam like a minute hand, which sweeps around the dial in synchronization with the scanning antenna, painting in its fluorescent wake a picture of what radar sees...
...excellent reflector; earth, an indifferent one. Water also is a good reflector, but because of its flat surface, the radar beam caroms off at an angle and no echo reaches the receiver (except from a spot in the center of the beam); hence water appears black on the scope...
...funds which were afforded them, have gone further than compromise. They have found a new educational theory, to provide a "substantial intellectual experience common to all Harvard students." They have defined two varieties of learning, distinguishing General Education from Special "not so much by subject matter as by scope and outlook." and they have determined to give every Harvard student adequate training in both varieties