Coolidge, William David, 1873-1975

William David Coolidge is well known for his contributions to X-ray machines and his work with tungsten filaments. He was the director of the General Electric Research Laboratory (1932-1940). Born on Oct. 23, 1873 in Boston MA, he obtained BS in Electrical Engineering, from MIT in 1896 and a PhD in Physics from the University of Leipzig in Germany in 1899. He was a member of the National Academy of Sciences.
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2018-10-23 09:10:06 am

Dina Herbert

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2016-08-09 09:08:48 pm

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