begin quote from wikipedia on Alexis Carrel
Carrel was also interested in the phenomenon of senescence, or aging. He claimed incorrectly that all cells continued to grow indefinitely, and this became a dominant view in the early twentieth century.[7] Carrel started an experiment on January 17, 1912 where he placed tissue cultured from an embryonic chicken heart in a stoppered Pyrex flask of his own design.[8] He maintained the living culture for over 20 years with regular supplies of nutrient. This was longer than a chicken's normal lifespan. The experiment, which was conducted at the Rockefeller Institute for Medical Research, attracted considerable popular and scientific attention. end quote from wikipedia.
My father heard about this experiment in a High School Science class in the early 1930s in Seattle, Washington.
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