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Incandescent light bulb. Lots of reliable sources credit Just and Hanaman of developing and patenting the first tungsten filament light bulb, more efficient than preceding carbon filament bulbs, but too fragile for practical use, so they were replaced by ductile drawn tungsten filaments invented by Coolidge in 1910 and sold in 1911. They also were the first to produce pure tungsten powder. The first name is also spelled "Alexander" in some references. It is important to keep out assertions that he "developed the light bulb we use today," since he didn't.
Edison (
talk)
00:16, 15 December 2011 (UTC)reply
This redirect is within the scope of WikiProject Biography, a collaborative effort to create, develop and organize Wikipedia's articles about people. All interested editors are invited to
join the project and
contribute to the discussion. For instructions on how to use this banner, please refer to the
documentation.BiographyWikipedia:WikiProject BiographyTemplate:WikiProject Biographybiography articles
This redirect is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of
Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
See discussion page of
Incandescent light bulb. Lots of reliable sources credit Just and Hanaman of developing and patenting the first tungsten filament light bulb, more efficient than preceding carbon filament bulbs, but too fragile for practical use, so they were replaced by ductile drawn tungsten filaments invented by Coolidge in 1910 and sold in 1911. They also were the first to produce pure tungsten powder. The first name is also spelled "Alexander" in some references. It is important to keep out assertions that he "developed the light bulb we use today," since he didn't.
Edison (
talk)
00:16, 15 December 2011 (UTC)reply