This short shows how two objects led to important discoveries. Children playing with a seesaw inspire French physician Rene Laennec to invent the stethoscope, and a pair of shoes made of caoutchouc lead Charles Goodyear to discover the process for vulcanizing rubber.

• DirectorDouglas Foster
• Release5 May 1945
• Genre
  Drama / Documentary
• Duration0h 11m
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• Revenue?
• Rate
  

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• Productions

  Metro-Goldwyn-Mayer