Date: Wed Feb 14 11:49:14 2007

Author: Bernard Cleyet

Subject: Re: Incandescent Bulb Destruction and Uses

Post:
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According to Levi (Applied Optics) higher voltage lamps are made of
coiled coil filaments instead of a single coil. I suspect a single coil
more closely duplicates the double helix. Someone, w/ more time than I,
could examine both (25W and a 250 +) w/ a microscope?

A useful artefact of the double coil is it, for an obvious reason, has a
higher emissivity.

bc, gold mines Levi.

p.s. too bad they didn't give you sockets and relays too -- digital sign!

Zigmund J. Peacock wrote:

> Wayne et al, I find 25 watt light bulbs good for thisdemo.
> The army gave us a skid load, 1m x 1m x 1m of these lamps, do you
> know how many this is?
> Zig
>
> Wayne Easterling wrote:
>
>> The diffraction pattern created by shining a laser onto a
>> stretched incandescent light filament is very similar to the pattern
>> scientist saw (see) when probing DNA using X-ray diffraction
>> techniques. Some filaments are better for this then others so it
>> takes some trial and error to get the bes
>
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According to Levi (Applied Optics) higher voltage lamps are made of
coiled coil filaments instead of a single coil. I suspect a single
coil more closely duplicates the double helix. Someone, w/ more time
than I, could examine both (25W and a 250 +) w/ a microscope?

A useful artefact of the double coil is it, for an obvious reason, has
a higher emissivity.

bc, gold mines Levi.

p.s. too bad they didn't give you sockets and relays too -- digital
sign!

Zigmund J. Peacock wrote:



Wayne et al, I find 25 watt light bulbs good for thisdemo.
The army gave us a skid load, 1m x 1m x 1m of these lamps, do you
know how many this is?
Zig

Wayne Easterling wrote:




The diffraction pattern
created by shining a laser onto a stretched incandescent light filament
is very similar to the pattern scientist saw (see) when probing DNA
using X-ray diffraction techniques. Some filaments are better for this
then others so it takes some trial and error to get the bes


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