Public domain
The yardstick is being applied to the measuring of radio waves by means of parallel device of galvanometer, the radio laboratory of the Bureau of Standards has succeeded in measuring very short radio waves, only ten meters in length
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Subjects
Credit lineThe yardstick is being applied to the measuring of radio waves by means of parallel device of galvanometer, the radio laboratory of the Bureau of Standards has succeeded in measuring very short radio . 1924-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.
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