John Nesbitt
Narrator
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.
Release Date | 1945-05-05 |
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Runtime | 11m |
Director | Douglas Foster |
Producer | |
Writer | Rosemary Foster |