On January 17, 1912, Nobel Prize winner Dr.
Proper nutritio.
He maintained the living culture for well over 20 years--much longer than a chicken\'s normal life span--proving that living cells could be kept alive indefinitely by simply controlling the nutrients and removing the waste in the surrounding solution.
Alexis Carrel began a famous experiment at the Rockefeller Institute for Medical Research in which he placed tissue cultured from an embryonic chicken heart in a flask of his own design.
On January 17, 1912, Nobel Prize winner Dr