William david coolidge biography of michael jackson
Dr.!
William Coolidge would have found it virtually impossible to become a medical physicist by today's rules.
William D. Coolidge
Dr. W. D. Coolidge () was one of the most important innovators of the 20th century. Coolidge developed the ductile tungsten filament used in lightbulbs, fluorescent lamps, car ignitions and vacuum tubes.
He worked on transformers and cathode ray tubes, high vacuum tubes and he was one of the early leaders at the General Electric Research Lab. He had a remarkable understanding of physics and made improvements to many technologies.
Tungsten filaments replaced tantalum filaments in and have reigned as the filament of choice ever since.
Before Coolidge's work lightbulb filaments were made with more fragile sintered tungsten, tantalum, bamboo or carbon.
When Michael Joseph Jackson was born into a large family in a small house in Gary, Ind., on Aug. 29, , no one could have imagined that.Ductile tungsten allowed the bulb to last longer and produce brighter light.
Condensed Biography:
A young William Coolidge |
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