William D. Coolidge
William David Coolidge (October 23, 1873 – February 3, 1975) was an American physicist, who made major contributions to X-ray machines. He was the director of the General Electric Research Laboratory and a vice-president of the corporation. He was also famous for the invention of "ductile tungsten", which is important for the incandescent light bulb.
Read more about William D. Coolidge: Early Years, Ductile Tungsten, Improved X-ray Tube, Awards, Later Career, Patents
Famous quotes containing the word coolidge:
“Some of the offers that have come to me would never have come if I had not been President. That means these people are trying to hire not Calvin Coolidge, but a former President of the United States. I can’t make that kind of use of the office.... I can’t do anything that might take away from the Presidency any of its dignity, or any of the faith people have in it.”
—Calvin Coolidge (1872–1933)