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Date: Fri, 12 Mar 1999 03:45:34 +0100
To: Aquanaut Techdiver Mailing List <techdiver@aquanaut.com>
From: Thor Allan Stenberg <tastenbe@on*.no*>
Subject: Re: Subtle narcosis
That's quite a funny idea, residual narcosis. - Where did you come up with
that? Since you are a divemaster I believe you are aware of the fact that
nitrogen narcosis is related to the nitrogens solubility in the lipid phase
or fat. As you venture into deep waters more N2 goes into solution, hence
you get "narced".  However, elementary physics suggest that when your depth
is reduced, PN2 is proportionally reduced and so is your level of
impairment. (You should at least be clear enough to pick the right exit...)

Perhaps you might experience some residue if you performed a rocket-style
ascent from 200 feet with torpedo-speed, but then again, residual narcosis
would be the least of your problems : ) Don't do this at home...!

P.S. Are you sure you're not referring to silent bubbles in any way??

/...
At 09:57 11.03.99 -0800, you wrote:
| Hi.  I'm new to the techdiver list; I'd like to get some feedback to see
| if others have noticed relatively subtle nitrogen narcosis.
| 
| It's only recently that I realize how pervasive narcosis is.  For
| example, I notice after diving 2-3 dives (well within rec limits), that
| I tend to miss the right exit on the way home or make other similar such
| minor mental errors for the next 8 hours or so.
| 
| I used to write this off as just "being tired", but I now think it is
| residual narcosis.  Interestingly, I've never really felt "narced" even
| on the couple of dives where I've exceeded 150 feet depth.  
..../ 

Regards

----------------------------
Thor Allan Stenberg
tastenbe@on*.no*
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