A SUBSTITUTE FOR X-RAYS
In the course of a lecture at the Conservatoire dcs Arts et Metiers, in the middle of December, Professor Violle stated that the Hughes balance was now being used to locate bullets in wounds. It was enough, he declared, to pass one of the bobbins , over the body of the wounded man, and to Jisten at the telephone to find the exact spot. The system is very simple and very certain, and would be of inestimable value where radiographic apparatus was not available. The Hughes balance is composed of two bobbins connected so as to make a balance between their primaries and secondaries. When the balance is established the telephone apparatus which is fixed between them makes no sound, but when one of the bobbins comes near a metallic body the equilibrium is destroyed, and the telephone vibrates.
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https://paperspast.natlib.govt.nz/newspapers/EP19150220.2.128
Bibliographic details
Evening Post, Volume LXXXIX, Issue 43, 20 February 1915, Page 11
Word Count
142A SUBSTITUTE FOR X-RAYS Evening Post, Volume LXXXIX, Issue 43, 20 February 1915, Page 11
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