NEW FOGHORN.
Device to Ensure Safety of Ships From Collision. SENSITIVE SOUND WAVES. (Received 12.30 p.m.) TORONTO, May 20. Professor Louis King, McGill University, 6tated that a foghorn had been invented which would enable a ship to determine its exact distance frofa. a certain danger point by means of simultaneous sounds sent out by sound and radio, and picked up by a delicate machine on ship. The difference in time between their arrival would enable an accurate calculation to be made of the distance the messages had come.
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Auckland Star, Volume LXII, Issue 118, 21 May 1931, Page 7
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88NEW FOGHORN. Auckland Star, Volume LXII, Issue 118, 21 May 1931, Page 7
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