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Restored Edison recordings contains Otto von Bismarck’s voice Restored Edison recordings contains Otto von Bismarck’s voice Restored Edison recordings contains Otto von Bismarck’s voice

A collection of wax cylindrical phonographic records from Thomas Edison's laboratory have been restored. The cylinders, from 1889 and 1890, include the only known recording of the voice of the powerful chancellor Otto von Bismarck. Two preserve the voice of Helmuth von Moltke, a venerable German military strategist, reciting lines from

Ancient human vocal chords recreated

A researcher has created anatomically correct vocal chords out of plastic tubes to see what sounds humans could make 3 million years ago. Many animals communicate with sounds, but it is the variety of our language that sets us apart. Over millions of years, changes to our vocal organs have allowed

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