7

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.
Compartir:
 
 
 
 

País: United States of America

Tiempo de ejecución: 11 minutos

Calidad: HD

Lanzamiento: 1945

imdb rating 7

Comentario

Nunca compartiremos su correo electrónico con nadie más.