CONNECTING TO STREAM

VidFast HD Active

The Seesaw and the Shoes

HD 1080p 1945
7.0

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.