Letter | Published:

Replacing the Telephone by a Loud Speaker in Conductivity Measurements

Nature volume 127, page 441 (21 March 1931) | Download Citation

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Abstract

IT seems improbable that nobody should have ever tried replacing the telephone by a loud speaker in conductivity measurements, but I have never heard of it, nor read anything about its possibility and advantages; I will, therefore, describe it very briefly, as I feel convinced that it represents a real improvement over the customary procedure.

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Affiliations

  1. Institut Pasteur, Paris, Feb. 16.

    • LECOMTE DU NOÜY

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DOI

https://doi.org/10.1038/127441b0

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