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David Kritchevsky and the ball mill


Eagle's medium
Leonard Hayflick Scientist
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The media was described by a well-known biologist, whose name is Harry Eagle, and of course, it went by his name, Eagle's medium. The formula was published by Harry Eagle, but what he failed to publish, which was very common in those days, was how you put this list of ingredients together. It was like having a recipe for a cake that told you what the ingredients were, but it didn't tell you how to mix things together, at what temperature and how much time to bake the cake, etc, so that occurred to me to be a possible problem. 


Leonard Hayflick (b. 1928), the recipient of several research prizes and awards, including the 1991 Sandoz Prize for Gerontological Research, is known for his research in cell biology, virus vaccine development, and mycoplasmology. He also has studied the ageing process for more than thirty years. Hayflick is known for discovering that human cells divide for a limited number of times in vitro (refuting the contention by Alexis Carrel that normal body cells are immortal), which is known as the Hayflick limit, as well as developing the first normal human diploid cell strains for studies on human ageing and for research use throughout the world. He also made the first oral polio vaccine produced in a continuously propogated cell strain - work which contributed to significant virus vaccine development.

Listeners: Christopher Sykes

Christopher Sykes is a London-based television producer and director who has made a number of documentary films for BBC TV, Channel 4 and PBS.

Tags: Harry Eagle

Duration: 47 seconds

Date story recorded: July 2011

Date story went live: 08 August 2012