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 words william and/or coolidge:
“Bow, bow, ye lower middle classes!
Bow, bow, ye tradesmen, bow, ye masses!”
—Sir William Schwenck Gilbert (1836–1911)
“After all, the chief business of the American people is business. They are profoundly concerned with producing, buying, selling, investing and prospering in the world.”
—Calvin Coolidge (1872–1933)