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| Authored by: Tkilgore on Monday, September 03 2012 @ 11:13 PM EDT |
> The light bulb of today is not of Edison design
True enough. We don't use carbon filaments any more.
> (the socket is).
Which socket? There are several different standard sockets even for
"ordinary" domestic-use light bulbs, depending on where you are. Lots
of light fixtures especially in Europe use dagger sockets, for example, not
screw-in sockets.
> As far as I
know it was a German inventor that first used wolfram (tungsten) as a filament.
Not sure about that. You may be right, but I tend to suspect it was actually a
Hungarian invention. At least, all the Hungarians I know seem to think so. As
circumstantial evidence, there is after all that Hungarian company named
Tungsram which was founded in 1908 and produced the first commercial tungsten
filament bulb. But I warn you that for me it is too late in the evening to check
sources.
> It might have been the same that found out that filling the bulb with
nitrogen
was better than using high vacuum. In vacuum the metal atoms boiled off and
plated the glass bulb on the inside.
Nitrogen? Didn't they at some point use argon?
Amazing what can be discussed on Groklaw. [ Reply to This | Parent | # ]
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