Narrator
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.
Narrator
John Nesbitt
Narrator
Charles Goodyear (uncredited)
Arthur Space
Charles Goodyear (uncredited)
One of Goodyear's Guests (uncredited)
Helen Dickson
One of Goodyear's Guests (uncredited)
Bit Part (uncredited)
Feodor Chaliapin Jr.
Bit Part (uncredited)
One of Goodyear's Guests (uncredited)
Sheldon Jett
One of Goodyear's Guests (uncredited)
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