Letter | Published:

Electric Wave Recorder for Strutt's Radium Electroscope

Nature volume 70, pages 246247 (14 July 1904) | Download Citation

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Abstract

THE periodical discharges of a Strutt's radium electroscope can be arranged to ring a bell or print a record of every contact of the leaves; each discharge from the outside terminal, when the leaf strikes, is sufficient to act on a coherer, if any part of the coherer circuit is connected by wire, so that the discharge terminal of the vacuum tube takes the place of the aërial, as used in wireless telegraphy; the experiment never fails, every discharge producing a ring on the bell or a dot on the Morse tape as desired. For the coherer I use two pieces of No. 16 German silver wire, with nickel filings in the gap, at ordinary atmospheric pressure.

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  1. 156 Clapham Road, S.W., July 1.

    • F. HARRISON GLEW

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DOI

https://doi.org/10.1038/070246e0

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