splizxer
Edison experimented with platinum and other metal before deciding to return to the carbon filament.
Thomas Edison
Edison's electric light
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Atherant
Replied to: Edison experimented with platinum and other metal before deciding to return...
The first successful lightbulb burned for forty hours when Edison tested it on 22 October 1879.
replied to: Atherant
10ES
Replied to: The first successful lightbulb burned for forty hours when Edison tested...
That's right, but the first incandescent lightbulb lasted 13 and a half hours before it burned out.