Watch The Seesaw and the Shoes (1945)
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The Seesaw and the Shoes
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.
★ 0.0 11 min 1945-05-05
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