HDTenEightyP/NetNews huggingface dataset:
Newsgroups: bit.listserv.scuba-l
Date:         Fri, 14 Aug 1992 08:20:00 EDT
From:         "Tony.Kuhlman" <ADP64@MSU.BITNET>
Subject:      Protecting the trousers of a wet

From:         ET@SBI.RUG.AC.BE

>some friends have advised me to glue the patches to the suit
>and say it is a typical do-it-yourself job, others have
>suggested to have them stitched and have warned that it
>is a professional's job.

>comments and sound advice please ...

  I glued patches to the knees of my wetsuit myself with no problem.  They
protected the suit from further damage and never gave me a bit of trouble.  My
suit was of the two-sided nylon variety, and I used the standard black wetsuit
glue available at that time (Early 1980's).

  Just follow the instructions on the glue container, and try to do a neat
job.  I had a couple of patches of glue that showed around the edges of the
patch, and it detracted from the appearance of the suit.  This will show up
very well if you have a colored suit, instead of the traditional black
material.


Tony Kuhlman
Michigan State University
East Lansing, Michigan, USA
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Date:         Wed, 12 Aug 1992 20:44:49 EDT
From:         Andy Schmidt <73467.2574@COMPUSERVE.COM>
Subject:      20 l tank spec sheet

On Tue, 11 Aug 1992 17:11:01 GMT parker@redx.washington.edu (Michael Parker)
writes in his message <1992Aug11.171101.23514@u.washington.edu>

MP> Recently, I have begun to participate in a local Technical Dive Team
MP> deep dive operations.  I am now very much interested in those 20 liter
MP> tanks that were advertised a while back.  Will someone please post the
MP> info on who I need to contact on obtaining some of these tanks?

Michael,
I have the spec sheet, waiver form, order form etc available now. Please
send me your fax number or mailing address and I get everything into the
mail to you. Time is getting short - please give it your immediate attention.

Andy
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Date:         Wed, 12 Aug 1992 10:53:53 EDT
From:         Joe O'Donnell <LIBJOD@SUVM.BITNET>
Subject:      Rodale's Magazine

I received a second issue of Rodale's magazine without subscribing.
I assumed that it was due to my DAN membership.  We'll see if I get
a third issue.


Submergo ergo sum,
Joe O'D
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Via: uk.ac.plymouth.charles-cross; Fri, 14 Aug 1992 04:14:26 +0100
Via: vision.cx.psw.ac.uk; Thu, 13 Aug 92 20:28:24 BST
Newsgroups: bit.listserv.scuba-l
Date:         Thu, 13 Aug 1992 20:28:21 BST
From:         Rob Simpson <robs@CHARLES-CROSS.POLY-SOUTH-WEST.AC.UK>
Subject:      Outer Hebrides

I am going the the Outer Hebrides (Western Isles, Scotland) in a few days and
 wonder if anyone can give me any info on diving here. We will be staying, and
 diving around, the Isle of Harris.

Rob Simpson (Plymouth, England)
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Date:         Thu, 20 Aug 1992 11:40:00 MST
From:         Clarke Whitehead <TSCWHITEHEAD@CC.WEBER.EDU>
Subject:      Re: Wetsuits

I noticed Byron Magnin's message a while ago re: "Berry's" wetsuits.
Can anyone tell me if Berry's or any other sources make good wetsuits in
tall sizes.  I am new to diving, and 6'5" tall, and am looking to purchase
my first wetsuit.

Thanks,
	Clarke Whitehead
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Date:         Tue, 18 Aug 1992 21:24:57 EDT
From:         HMAPCK1 <HMAPCK1@MARISTA.BITNET>

Please send me information about your network.

I am interested in taking scuba diving lessons as they
are oere at Marist as part of their physical education
program.

Thank you in advance,

Connie Kustas
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From: rols@tk1003.shearson.com (Roland King)
Subject: BC
Organization: Lehman Brothers
Distribution: bit.listserve.scuba-l
Date: Thu, 13 Aug 1992 05:28:32 GMT

I'm looking to buy my first BC and would love some recommendations from people.
I would really like one that packs up reasonably well for travel and is comfortable
over a very thin, or no, wetsuit. ( I will be diving mostly in Malaysia etc and the 
water's pretty warm).

Any ideas / experiences will be most welcome. Please either post here, or E-mail to 

rols@shearson.com

Thanks in advance

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Date:         Fri, 14 Aug 1992 13:35:00 N
From:         ET@SBI.RUG.AC.BE
Subject:      Protecting the trousers of a wetsuit

efdt/141112z/aug/92//

a possible do-it-yourself question. :-)
i have mares 6.5 mm wetsuit (fj and jacket) and have been using
the old inner tyre or neoprene knee protectors up to now, to
protect the trousers of my wetsuit.
last week however, casually touring a local shop i bought
black rubber knee patches with little studs on the outer side
(standard equipment on for example the poseidon dry suits).
asking how i could attach these patches to my wetsuit, the
grandfather of the shopowner (holiday, you know !) kept very
quiet.
some friends have advised me to glue the patches to the suit,
and say it is a typical do-it-yourself job, others have
suggested to have them stitched and have warned that it
is a professional's job.

comments and sound advice please ...


 Nobody seems to know why,
                           but they all call me
+------------------------------------+                        +
| De Vlerick School voor Management  |    *****   *****       |
| Seminarie voor  Beleidsinformatie  |    *         *         |
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Date:         Fri, 21 Aug 1992 11:55:39 -0400
From:         Rob Hagen <hagen@MAYO.EDU>
Subject: Re: Wake up call

just had to rub in in, eh?

WAKE UP!!!!!!!
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Date:         Fri, 14 Aug 1992 08:28:00 EST
From:         Pete McCarthy <pete@NTSC-RD.NAVY.MIL>
Subject:      BC

>> I wonder, with these built-in weightbelts, is it still possible to
>> ditch the belt in case of an emergence ascent ?

>Would this require to ditch the BC as well ?

Since I have a Zeagle, I can answer these questions.  There is a handle
on the lower left side of the BC.  When you pull it, the weights fall out
the bottom.

Personally, I like the BC, it's quite comfortable.  It does have a lifetime
warranty, which I like to have in dive equipment.  Another advantage that
I see is that it comes in pieces.  This means you can mix and match colors
(for the fashion conscious) and sizes (for those of us who don't use
standard sizes).  Your dive shop basically assembles one that fits in the
colors you want.  If some of the pieces still don't fit (for the very very
small or the very very large), they will make one that does at no extra
cost.

Peter J. McCarthy
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Organization:  U.S. Army Human Engineering Lab, Aberdeen, MD
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Date:         Fri, 14 Aug 1992 09:52:06 EST
From:         JEFF WALL <wall@HEL4.BRL.MIL>
Subject:      BC

I also have a Zeagle BC and I think the weight ditching mechanism is one
of the most elegantly simple designs I have ever seen.  As an engineer I
would like to tip my hat to the person who thought of this design.  It is
literally fail safe.  The only way I have seen that this mechanism could
fail is if the handle broke off and that seems unlikely.  I also believe
it to be a quicker method than removing a weight belt due to the fact
that there is no weight belt to get accidently hooked on something.

When removing a weight belt we are all taught to unbuckle the belt, then pull
it away from the body and release it, with the Zeagle the diver simply yanks
the rip cord.

Another advantage over traditional BC's is that the BC doesn't ride up
when floating on the surface.  In the traditional BC the BC lifts at the
upper chest and under arm region of the body and the weight belt pulls down
at the hips.  The Zeagle system the BC lifts on the chest again but the weights
pull down on the same area.  You cannot believe the difference in comfort.
It is also convenient not to have to put on a belt on a boat that is being
tossed around in 5' seas :-).

Jeff Wall
wall@hel4.brl.mil
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Date:         Wed, 12 Aug 1992 19:03:34 PDT
From:         David Duis Story <story@BENT.WPD.SGI.COM>
Subject:      Re: Heliox
              Aug 11, 92 3:05 pm

Tundra' Tim Daneliuk
>
>  It is my understanding
> that breathing Heliox at pressure causes one to be less susceptable to
> DCS.
>
> First question: Why is this?

Your guesses are pretty much on the mark, as are a lot of the
responses so far.  Here's my understanding on the matter:

I believe Helium's main advantages as a decompression gas are that it
gives short deco times and is not narcotic.  Here's why:

Advantages of Helium:
---------------------
The main difference between Helium and Nitrogen as an inert gas is the
difference in their diffusion rates.  Since diffusion rate is directly
related to the square of the atomic weight, it can be shown both
theoretically and practically that He diffuses in and out of the human
body 2.65 times faster than N2.  Faster diffusion times == shorter
decompressions, but also less time before required decompression!

On the narcotic effects, here's an interesting little chart I picked
out of _The Physiology and Medicine of Diving_, p245.  (Great book.)
This chart gives you an idea of the relative merits of various gases
for deep diving mixes.  It's pretty clear from these numbers how
molecular weight relates to narcotic potency.

Gas	Molecular 	Solubility	Relative Narcotic
	Wt		in Lipid 	Potency
---	---------	----------	-----------------
He	4		0.015		4.26 	(LEAST narcotic)
Ne	20		0.019		3.58
H2	2		0.036		1.83
N2	28		0.067		1 	(reference)
A	40		0.14		0.43
Kr	83.7		0.43		0.14
Xe	131.3		1.7		0.039 	(MOST narcotic)

For reference:
O2	32		0.11		none
CO2	44		1.34		none (but can potentiate)


Disadvantages of Helium:
------------------------
I believe its increased conductivity (seven times that of air, from
memory) is in fact a liability for deep dives, since in a helium
atmosphere the ambient temperature must be closely controlled or
sleeping saturation divers will get hypothermic!  Heated suits and
chambers are required.  Voice distortion is another problem, as is
HPNS deeper than 500fsw.  Not to mention the high $$ cost of the gas,
and of the mixing.


Hope this gives you a rough idea why Helium is used, given its
disadvantages.  Less soluble, for shorter deco times, and less
narcotic.  Unfortunately, man seems to need narcotics for really deep
dives --- to avoid HPNS, you have to add a sip or two of N2....

Cheers,

Dave Story                        NAUI AI Z9588, PADI DM 43922, EMT
story@bent.wpd.sgi.com	              Better diving through drugs.
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Date:         Thu, 13 Aug 1992 19:21:55 -0400
From:         "Karen Hambleton, 2-2340" <"UNHF::SA_KHAMBLETO"@UNHH.UNH.EDU>
Subject:      RE: wetsuits

A simple question; how is a wetsuit suppose to fit? A guy at the local shop is
of the theory that if it is comfortable, it is too loose (says it should fit
like a second skin). I get cold easily (the Bay of Maine is the usual dive
area) and if it has to be tight to keep me warm - so be it, but tight is kind of
uncomfortable. What does conventional wisdom say about this?

					Thanks,    -Karen
Newsgroups: bit.listserv.scuba-l
From: bmacmill@epas.utoronto.ca (Bruce MacMillan)
Subject: Purchasing Used Dive Computers
Organization: University of Toronto - EPAS
Date: Sat, 15 Aug 1992 15:37:54 GMT


-- 
Bruce MacMillan
bmacmill@epas.utoronto.ca
Voice: (416) 599-9261	(519) 542-4572
FAX: (416) 978-8821	(519) 542-4854
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Date:         Wed, 19 Aug 1992 23:57:42 PDT
From:         Tim Chase <A3TC@PSUORVM.BITNET>
Subject:      shark part 2

After talking to the dive shop here in Oregon, I guess it was in the East coast
that the poor diver had a small 20 pound shark latch on until a police
officer shot the critter in the head in order to get it off the arm of
the diver. Anyone on the East coast have any more info... I thought that
the west coast had the corner on the shark market :)

Tim Chase Computer Operator Specialist
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Date:         Wed, 19 Aug 1992 03:31:43 PDT
From:         Tim Chase <A3TC@PSUORVM.BITNET>
Subject:      Sharks :)

Well, for those who say that sharks are people best friends :) We
had another shark attack here in Oregon (I guess, the 11'oclock news
teased it and gave no more info before I had to come to work). From
what was said and that was not much! A shark bit a man's arm and
would not let go for 20 minutes. I guess the diver brought it home
because the picture made the shark look about 5-8 feet. Anyway, I
whis I could of stayed longer to see the full story :(

I have no real feelings about sharks and their place in the chain of
things but I still think that they are something to give a wide birth
to. After all, it is their home and play ground.

Now, why whould a shark bite a diver? From what my brother-in-law has
told me, when the El Nino effect comes about, fish go elsewhere.
No fish, no eat. Sharks have to eat like everything else. Here in
Oregon, we are having black bears come down looking for food during
the drought we are having here. Same difference in the ocean. They are
looking for food and a slow, blind diver makes easy meal for a hungry
critter ! Now, normaly a shark would look at some other thing to go
after. Divers are just not that interesting to them. But the food chain
is a bit changed. So, be careful for awhile...

Tim Chase Computer Operator Specialist
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Date:         Wed, 12 Aug 1992 09:10:13 -0400
From:         geary%cfa3.DECNET@CFA.HARVARD.EDU
Subject:      Helium vs. Nitrogen

Helium helps prevent DCS because it can be much more easily expelled
from body tissues and the bloodstream than nitrogen.  The main
reason is that helium is always in atomic form, while nitrogen is a
molecule (N2).  Thus, the physically larger N2 molecule has a much
harder time coming out of solution and diffusing harmlessly through
the membranes of the lungs, compared to the tiny helium atoms.

A little experiment can perhaps illustrate this.  Take a balloon,
fill it with air to a certain size, and keep it overnight.  Measure
it again to verify that it has no leaks.  Then try filling the same
balloon with helium.  You will usually find a lot of leakage by the
next day.  The helium will diffuse right through the rubber membrane
that was so effective at holding the N2 and O2 molecules.


John Geary
PADI DM-52283
From: "doug hook" <doug.hook@canrem.com>
Newsgroups: bit.listserv.scuba-l
Subject: rodale's magazine
Date: 12 Aug 92 10:41:37 EST
Reply-To: "doug hook" <doug.hook@canrem.com>
Distribution: bit
Organization: Canada Remote Systems

PL@UN> I thought that the thing in the front of the first issue said that DAN m
     > get a free subscription?! not just one issue.

PL@UN> Pete

I believe DAN members do get a subsciption to Rodales. I recieved my
second issue last week. It was kind of rough looking, as the post office
was none to gentle in its treatment of the magazine. I suspect the
delay in people recieving the issues is due to the system DAN required
be instated to maintain the confidentiality of its mailing list. The
magazine has its mailing labels applied by an independant third party
who looks after the mailing of the magazine. This was done to aviod
selling or lending DANs mailing list to Rodale Press, and to avoid the
deluge of admail that DAN members would be likely to recieve. We should
commend DAN for taking these steps to maintain the integrety of the
organization, while at the same time making it possible for members to
recieve Rodales Scuba Diving free, and anonymously.

And yes, Scuba Diving appears to be a fairly good magazine. Too early to
tell if it is really unbiased or not, but it does seem to avoid the
plugs of specific advertisers skin diver is famous for.

Doug Hook
doug.hook@canrem.com

---
  OLX 2.2  If at first you don't succeed, then skydiving isn't for y
--
Canada Remote Systems  - Toronto, Ontario/Detroit, MI
World's Largest PCBOARD System - 416-629-7000/629-7044
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Date:         Thu, 13 Aug 1992 01:24:25 PDT
From:         Tim Chase <A3TC@PSUORVM.BITNET>
Subject:      Scuba equipment

My co-worker just bought some equipment from the ever operating scuba
equipment underground. This is what he got:

Posiedon Regulator and safe 2nd
Din connection and adaptor for regular J/k setup
Repair box
two sets of Techna Fins
TUSA BCD
Mares Dive computer/console
Mask with case
Impulse snorkel and a regular snorkel
Weight belt (soft)
Knee pads
Boots

                           How much???????


well......  $650  :) 8)

Death threats can be forwarded to a3nc@psuorvm

Tim Chase Computer Operator Specialist Portland State U....

P.S. There will be a used equipment sale at Pacific Water Sports in
               Portland Or. (or in Aloha, Or actually) Friday--Sunday
Newsgroups: bit.listserv.scuba-l
From: bmacmill@epas.utoronto.ca (Bruce MacMillan)
Subject: Source of Supply of Used Dive Computers
Organization: University of Toronto - EPAS
Date: Sat, 15 Aug 1992 16:04:25 GMT

This is a general inquiry regarding a source of supply of used dive computers
of all types, models and makes.  I am interested in building up a
small collection of used dive computers.  Could anyone make any recommendations
in this regard?  I notice that there was some discussion recently
about used Delphi Computers.  Cany anyone give me the address I could
write to for more informaion on this matter?  Thank you all for your interest
and assistance in these matters.  Best wishes.

-- 
Bruce MacMillan
bmacmill@epas.utoronto.ca
Voice: (416) 599-9261	(519) 542-4572
FAX: (416) 978-8821	(519) 542-4854
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Date:         Fri, 21 Aug 1992 03:39:28 -0400
From:         "Peter Larimer @ U.N.H." <P_LARIMER@UNHH.UNH.EDU>
Subject:      Wake up call

I am flying out to Cozumel in a few minutes...It is Very early, will someone
please wake me when I get there? Thanks in advance,

Pete
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Date:         Wed, 12 Aug 1992 12:35:17 -0400
From:         Karen Hambleton <K_HAMBLETON1@UNHH.UNH.EDU>
Subject:      Wetsuits

I could use some feedback on wetsuits. I am new to diving and want to get a
wetsuit (before I spend a fortune in wetsuit rentals). I tend to get cold fairly
easily and expect to do some amount of diving in New England as well as in
warmer climates - (ie. Mexico). I don't want to spend too much money, but want
something of reasonably good quality and warmth. I've investigated some closeout
deals and sales in the area, but have run into very low inventory levels in my
size.

Thanks for your help!!				-Karen Hambleton
Newsgroups: bit.listserv.scuba-l
From: rols@tk1003.shearson.com (Roland King)
Subject: Re Zeagle BC
Organization: Lehman Brothers
Distribution: bit.listserv.scuba-l
Date: Mon, 17 Aug 1992 05:21:31 GMT


What kind of weights are used with the Zeagle BCs ? Are they standard, so you can pack the BC, take it
on holiday and rent some weights there, or do you need to carry around an extra 10 pounds of lead
when you're getting on the plane??


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Date:         Tue, 18 Aug 1992 16:39:50 -0400
From:         Rob Hagen <hagen@MAYO.EDU>
Subject:      Re: Lobsters

what's the question?
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Date:         Thu, 13 Aug 1992 13:30:00 CDT
From:         COBBLE MASTER <LAPORTEM@OSHKOSHW.BITNET>
Subject:      Re: BC

Date sent:  13-AUG-1992 13:19:46
>
>I'm looking to buy my first BC and would love some recommendations from people.
>I would really like one that packs up reasonably well for travel and is
>comfortable
>over a very thin, or no, wetsuit. ( I will be diving mostly in Malaysia etc and
>the
>water's pretty warm).
>
>Any ideas / experiences will be most welcome. Please either post here, or
>E-mail to
>
>rols@shearson.com
>
>Thanks in advance

Roland,
        I have had experience with Zeagle and Dacor BC's so I thought I'd
answer.

The Zeagle bc is the one with the weightbelt built right into the bc.  It is
designed to keep you vertical while at the surface and horizontal while under
the surface.  This eliminates the problem some people have with the weightbelt
slipping around.  A semi-standard model generally goes for around $410.  A
octopus on your inflator hose is available with these bc's but in my opinion it
isn't worth the money.

Dacor BC's are nice if you don't have a problem with the weightbelt slipping
around.  There are four models if I remember correctly, in ascending order they
are: formula, elite, carribean, chameleon. The formula retails for around $300
the elite $350, carribean 399, chameleon 450.  These figures are not exact
but are close.  If you don't want to spend a whole lot go for the formula it
has hard back pack, one pocket, hose holders, and two quick dump methods.  If
you don't mind spending more go for the Carribean, soft back pack more padding
over the shoulder straps, and a few other small bells and whistles.

Hope this helps.

Disclaimer: The opinions within are of my own and not my employers.
/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=\
| Mike La Porte                 | Bitnet    := laportem@oshkoshw              |
| UW-Oshkosh                    | Internet  := laportem@vaxa.cis.uwosh.edu    |
| Computer Science Student      | Macintosh will never die!                   |
| PADI Divemaster               | DM-43274                                    |
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                        It's Cold Gin time again!
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