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