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No Legal Advice

The information on Groklaw is not intended to constitute legal advice. While Mark is a lawyer and he has asked other lawyers and law students to contribute articles, all of these articles are offered to help educate, not to provide specific legal advice. They are not your lawyers.

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not really

Authored by: jesse on Sunday, June 17 2012 @ 04:20 PM EDT

You can manufacture a light bulb yourself, as long as you don't have oxygen in
the bulb.

One way is to put two wires in it - use one to burn and remove the oxygen (which
usually burns out). Once
it is used up, the bulb works just fine.

Second, without a vacuum, you don't detect the electron flow as it is blocked
by
the gas.

The only use was in vacuum tube electronics - and they had the problem that the
heater element would evaporate and deposit on the glass wall... and burn out.

Read over the Edison patents - most of those related to the light bulb are for
thermal regulators to keep the metal from vaporizing.

And carbon has a higher thermal tolerance - 6422 degrees.

Carbon, using covalent bonds, is much more resistant to damage from heat, but is
more fragile in that mechanical vibration will break it in its normal form.

[ Reply to This | Parent | # ]

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