Computers - Electronics - Robots - Technology - TV's
Feb. 29 GUIDING RADIO WAVES. Two-inch pipes, or waveguides -- similar to those on the bench at left -- will be used in a new communications system scheduled for a 1974 field trial by Bell Telephone Laboratories. Earl Harkness tests ways to amplify the high-frequency radio waves traveling through the waveguide
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13209863
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46957084
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(c) Keystone Pictures USA/ZUMAPRESS.com/Mary Evans
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