Mailing List Archive

Mailing List: cavers

Message Display

At 11:35 PM 4/10/00 -0500, Scott Hunsucker wrote:

Hello Scott,

>obligation might be increased to an unrealistic point.  The addition of 25% 
>He to deco gases, except oxygen, has decreased the reported incidences of 
>problems and discomfort that is traditionally associated with pulmonary 
>oxygen toxicity; however, this step has the potential to increase thermal 
>considerations and might extend decompression times--hence it would not be 
>recommended for "average" dives.

What do you mean by "this step has the potential to increase thermal
considerations"?  Do you mean that breathing helium makes you cold?
I'm curious because the physics of the issue and practical experience
show that breathing helium *does not* make you cold.  Adding helium
to your drysuit makes you cold, yes, but breathing it does not for many
of the same reasons you shouldn't put it in your drysuit.

-Mike Rodriguez
<mikey@ma*.co*>
Pn(x) = (1/(2^n)n!)[d/dx]^n(x^2 - 1)^n

Navigate by Author: [Previous] [Next] [Author Search Index]
Navigate by Subject: [Previous] [Next] [Subject Search Index]

[Send Reply] [Send Message with New Topic]

[Search Selection] [Mailing List Home] [Home]