Science Finds Amazing New Uses for Sound (Jul, 1931)
Science Finds Amazing New Uses for Sound
by DR. SERGIUS P. GRACE
Assistant to Vice President, Bell Telephone Laboratories As told to J. EARLE MILLER Thanks to astounding discoveries made recently in the field of sound, you will soon be able to talk around the world, deaf mutes will hear, and communication in battle areas will be revolutionized. The amazing inventions which make such feats possible are described in this article.
IN A recent lecture on the new marvels being developed in the Bell Laboratories I placed my finger against the ear of one of the members of the audience, and he “heard” music and speech, though not a sound was audible on the stage.
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