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.
Top Cast

John Nesbitt
as Narrator
Narrator

Arthur Space
as Charles Goodyear (uncredited)
Charles Goodyear (uncredited)
Helen Dickson
as One of Goodyear's Guests (uncredited)
One of Goodyear's Guests (uncredited)
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