Music is and has been a huge part of most cultures around the world, and in many types of music the guitar plays an important role in creating and molding the sound and style of the music. Of course different types of guitars are used for different s...
Music And Entertainment music entertainment guitars acoustic amplification type sound theyIn 1963, Harvard Medical School Professor David Littmann, a renowned cardiologist, invented a stethoscope which would revolutionize the world of medical auscultation. Stethoscope design had changed little since the nineteenth century but Littmann rea...
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