Word: coaxial
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Dates: during 1935-1935
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...bright promise of solving the distance problem, however, appeared when American Telephone & Telegraph Co.'s experimental laboratories produced the coaxial cable. This consists essentially of two hollow copper tubes with a slender copper wire running through the centre of each, the whole insulated and sheathed in a lead case. Developed primarily as a telephone improvement (it transmits 240 messages simultaneously), it can also handle a frequency band 1,000,000 cycles wide, is able thus to transmit the fluctuating lights & shadows of television. With this cable it would be possible to "pipe" a televised program all over...