The nearest-yet imitation of human vision appeared at Chicago last week when Dr. Vladimir Kosma Zworykin of RCA Victor Co., one of the nation's foremost practical physicists, presented his iconoscope to the Institute of Radio Engineers. The iconoscope or "image observer" is for television use when John Citizen can afford that diversion.
Externally Dr. Zworykin's iconoscope resembles a big electric light bulb with a long neck. The bulb part is 8 in. in diameter, the whole 16 in. long. Inside are, in order from bulb to butt, 1) an ordinary motion picture camera lens...
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