William david coolidge biography of abraham

American physicist and engineer

William David Coolidge (; October 23, 1873 – February 3, 1975)^[1] was an American physicist and engineer, 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 development of "ductile tungsten", which is important for the incandescent light bulb.

William david coolidge biography of abraham

Early years

Coolidge was born on a farm near Hudson, Massachusetts. He studied electrical engineering from 1891 until 1896 at the Massachusetts Institute of Technology (MIT). After a year as a laboratory assistant, he went to Germany for further study and received his doctorate from the University of Leipzig.

From 1899 to 1905 he was a research assistant to Arthur A. Noyes of the Chemistry Department at MIT.

Ductile tungsten

Coolidge went to work as a researcher at General Electric's new research laboratory in 1905, where he conducted