John at NIST circa 1999

John Cahn

First post: Mar 2, 2016 Latest post: Mar 16, 2016
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John Werner Cahn was born in Cologne Germany in 1928.   He married Anne Hessing on August 20, 1950.  They have three children, Martin, Andrew, and Lorie. John and Anne have 6 grandsons, David, Jackson,Torey, Devin, Kyler, and Tobin.

John is an renowned American scientist.  In 1954, he joined General Electric. After leaving GE, he was a professor in the department of Materials Science at MIT from 1964 to 1978. From 1977 to his retirement, he has held a position at the National Institute of Standards and Technology (formerly the National Bureau of Standards, NBS). Dr. Cahn has had a profound influence on the course of materials and mathematics research during his career. One of foremost authorities on t (, Cahn has applied the basic laws of thermodynamics to describe and predict a wide range of physical phenomena.  More details about his professional life can be found at:

Since his retirement from NIST, John has continued to be involved in research until he began to suffer health issues in early 2015.  Despite treatment for the myeodysplastic disorder (inability to produce red blood cells), John developed an acute leukemia about a month ago.  His health is deteriorating.

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