Trace
The story
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.
- Original title
- The Seesaw and the Shoes
- Release date
- 1945-05-05
- Original language
- en
Cast
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