-- Forwarded message --From: Aaron Bird wvcave...@gmail.comDate: Fri, Jul 18, 2008 at 5:40 PMSubject: Questionnaire: Use of Digital Survey Tools in Cave SurveyingHi All,This is a questionnaire on use of digital survey tools in cave
Is 400 to 405nm a good wavelength for fluorescing cave critters and
interesting cave minerals?
I'm considering buying 100 5mm UV LEDs off eBay from Hong Kong.
They have a operating voltage of 3.2 to 3.6 and come with resistors for
ideal current from a 12v source.
(100 for a total cost of 12.99.
Don,
Is 400 to 405nm a good wavelength for fluorescing cave critters and
interesting cave minerals?
It may work for some critters and a few minerals, but for the really good
fluorescent effects you need a much shorter wavelength, on the order of 254 nm.
See, for example,
Berlandier was Swiss, thus allowing the Swiss to take over Rde14.
T.
-Original Message-
From: Gill Ediger gi...@worldnet.att.net
Sent: Jul 17, 2008 9:48 PM
To: texascavers@texascavers.com
Subject: [Texascavers] spies in the Middle East
At 04:38 PM 7/17/2008, Louise Power wrote:
The
Fritz:
With China, India and **Russia** demanding more oil and gasoline, the supply can’t keep upThe Russkies are making mega rubles with the oild gas, BTW.. and selling it to the Euros... doncha watch BBC?
T.
http://home.infionline.net/~tbsamsel/
I did a little bit of research on this a few weeks ago - I was trying
to isolate the spectral band that illuminates the phosphorescent
chemical and couple it with a photo filter that blocks all other
visible light - finding a filter with that narrow and specific of a
light cut (everything
Don Cooper said:
No - but I would give my left nut to go back to the days that gas was 1.05 a
gallon, when I was making only $19.00 an hour with excellent health benefits
and rent, including paid utilities were only $500 a month.
To which Louise Power said:
You can't even give
