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August 20, 2013 03:16 pm PDT

How the stethoscope wasinvented

The first stethoscope was a sheaf of rolled paper. It later evolved into a foot-long wooden tube. The inspiration: Possibly a couple of French street urchins playing on top of a pile of lumber.







Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/xH08KCWBuIA/story01.htm

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