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.
United States of America
Drama,
Documentary,
History
11 minutes
1945
Douglas Foster
Metro-Goldwyn-Mayer
1939
0.0
2007
5.3
1945
6.0
2008
7.3
1943
6.1
1941
5.5
1947
0.0
1935
7.2
1944
5.0
1940
6.0
1942
0.0
1946
6.0
1976
4.4
1938
5.4
1949
5.5
1943
5.0
2021
7.2
1945
5.8
1942
6.5
1939
0.0