There are now a significant number of
caves in the U. S. where carbide lamps are no
longer allowed for environmental reasons (soot,
spent carbide). Yes, carbide light is warmer,
but with modern LED lights with both local spread
and distant throw focusing, seeing the floor in
the vicinity of your feet (tripping hazard) is
not an issue. High-power LEDs also produce a
surprising amount of heat, so they could
theoretically be used as a heat source, albeit
not as effective as carbide. In any event,
carbide lighting is an anachronism that will soon
disappear altogether. Are there still any
significant commercial uses for carbide?
Mark
At 07:53 PM 8/23/2012, caverarch wrote:
4) Because carbide lighting is still superior in
terms of visual appeal to the human eye
and,
5) in terms of lighting floor (tripping) hazards
in a manner that does not wash out their three-dimensionality.
Europeans still love those ceiling-burners!
Roger G. Moore
-----Original Message-----
From: Diana Tomchick <[email protected]>
To: Andy Edwards <[email protected]>
Cc: <[email protected]> <[email protected]>;
<[email protected]> <[email protected]>;
<[email protected]> <[email protected]>;
<[email protected]> <[email protected]>
Sent: Thu, Aug 23, 2012 5:51 pm
Subject: Re: [Texascavers] Cave articles in Spiegel (German weekly)
1) Because they wanted the carbide lamps for the nice lighting effects in the
photos,
2) Because carbide is cheaper in Europe and
easier to obtain than in America (no
post 9/11 hangups),
3) Because caves in the Alps are a whole lot
colder than caves in Texas, and a
carbide lamp is a potential heat source in an emergency.
Diana
* * * * * * * * * * * * * * * * * * * * * * * * * * * *
Diana R. Tomchick
Professor
University of Texas Southwestern Medical Center
Department of Biophysics
5323 Harry Hines Blvd.
Rm. ND10.214B
Dallas, TX 75390-8816, U.S.A.
Email: [email protected]
214-645-6383 (phone)
214-645-6353 (fax)
On Aug 23, 2012, at 4:34 PM, Andy Edwards wrote:
> So weird, that's some serious gear conformity going on there :)
>
> Seriously, why do they all have those
ridiculous lamps, even the guy who has a Scurion?
>
> On Thu, Aug 23, 2012 at 4:28 PM, <[email protected]> wrote:
>
> Am I crazy, or are these carbide lamps connected to a tube?
>
> I like the opening foto that shows someone
with the most high tech lamp out
next to a person using carbide for the same trip. The rest of the fotos show
that everyone used carbide, with back up
lights. Beautiful cave bacon foto lit
by carbide.
>
>
http://www.spiegel.de/fotostrecke/schweizer-hoelloch-kaesefondue-beim-hoehlenbiwak-fotostrecke-65805.html
>
> julia
>
> -----Original Message-----
> From: dirtdoc <[email protected]>
> To: Cave NM <[email protected]>; Cave Texas <[email protected]>
> Sent: Wed, Aug 22, 2012 6:55 pm
> Subject: [Texascavers] Cave articles in Spiegel (German weekly)
>
> Here are some interesting articles that
appeared in Spiegel, a German weekly.
>
> Even if you don't read German, the Images tell most of it.
>
> DirtDoc.
>
> Fotostrecke: Verborgene Märchenwelt
> http://www.spiegel.de/fotostrecke/fotostrecke-86423.html
>
> Blätterhöhle in Westfalen: Abstieg ins Totenreich der Steinzeit
> http://www.spiegel.de/wissenschaft/technik/0,1518,845863,00.html
>
> Höhlentour in der Schweiz: Abstieg ins Höllenloch
> http://www.spiegel.de/reise/europa/0,1518,749602,00.html
>
> Frankreich: Eingeschlossene Höhlenforscher wieder in Sicherheit
> http://www.spiegel.de/wissenschaft/natur/0,1518,669137,00.html
>
> GRAF-SEISMO-KOLUMNE AUF SPIEGEL ONLINE: RÃTSEL DER ERDE
> http://www.spiegel.de/thema/graf_seismo/
>
> ZWISCHEN HIMMEL UND ERDE - NEUES AUS DER GEOFORSCHUNG
> http://www.spiegel.de/thema/zwischen_himmel_und_erde/
Please reply to [email protected]
Permanent email address is [email protected]
_______________________________________________
SWR mailing list
[email protected]
http://lists.caver.net/cgi-bin/mailman/listinfo/swr
_______________________________________________
This list is provided free as a courtesy of CAVERNET
