0.3 Vidoj
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.
Liberigo: May 05, 1945
Rultempa tempo: 11 minutoj
Lingvo: English
Studio: Metro-Goldwyn-Mayer
Lando: United States of America