When did tungsten filaments replace carbon?
Tungsten filaments replaced carbon in light bulbs in the early 1900s, and GE scientist William Coolidge made them practical in 1910.
Tungsten facts and facts about tungstens.
2 facts on this shelf
Tungsten filaments replaced carbon in light bulbs in the early 1900s, and GE scientist William Coolidge made them practical in 1910.
William Coolidge at General Electric found a way to make tungsten into thin wire in 1910, and tungsten filaments became the standard for incandescent bulbs.