HDTenEightyP/NetNews huggingface dataset:
From: awpsys@ritvax.isc.rit.edu
Subject: Re: Lake Ontario claims third diver
Reply-To: awpsys@ritvax.isc.rit.edu
Organization: Rochester Institute of Technology
Date: Mon, 27 Jul 1992 15:54:47 GMT


The only thing I can add to the issue of diving in cold northeastern
lakes is the relatively high number of freeze ups causing free flowing
that occur when divers venture below the thermocline.   This may be caused
by older non-environmental regulators passing though the extreme thermoclines
that can exist in the great lakes.  I have experienced temperature drops
from 65 at the surface to 48 at 40 feet and to 39 degrees at 100 feet.

Free flowing has been such a problem on the St Pete (110 feet off of 
Poultnyville NY) that the charter operator who takes divers out there
requires all divers to carry a fully redundant air supply.

I for one am a firm believer in pony bottles. (as is a growing number of
other divers arround here)

This summer (If you can call it that) has been so abnormally cool that the
Lake Ontario waters have not warmed up as much.   Last year in late July 
and early august the surface temperatures were in the 70's (pleasant diving
without hoods or gloves.)

- Andy
Newsgroups: rec.scuba
From: rallan@gun.com (Robb Aley Allan)
Subject: Re: Florida diving
Reply-To: rallan@gun.com
Organization: Helical Systems, Ltd.
Date: Tue, 21 Jul 92 21:19:16 GMT

Doug Bentley writes
   We are planning a vacation for Jun/93 and one of the areas we are 
   considering is Florida, specifically the Palm Beach area and also the Keys.  
   Travelling with us will be 2 18 yr. old girls.   I would appreciate info on 
   good dive sites, dive shops, etc in those areas.  I'm also looking for an 
   area where I don't have to ride herd on the 2 younger ones (they probably 
   will be doing some diving too).  What is the drinking age in Florida and can 
   under 21's rent or drive a rent-a-car?  Thanks in advance
   Doug Bentley, Trail, B.C., Canada   darby@tradent.wimsey.bc.ca

I can't recommend highly enough the Scuba Club in West Palm Beach. Call 407/ 844-2466 and  
speak to either J.D. Duff or Wayne Shoemake. They are a real diving club, with facilities  
(pool, deep tank, sauna, classroom, own dock, shop, etc.) and a really nice staff. Prices  
are reasonable. Everything can be rented. On-site compressor. Can handle Genesis tank  
(DIN valves and 3500 #). They generally do one-tank dives twice a day (since the reefs  
are only 10 minutes away!), three times on weekends. Also night dives and dinner dives  
(last Friday of each month). Divers come from around the country to dive with them; they  
have a pretty good reputation.

Another nice shop is Seapro in Riviera Beach. Call 407/ 844-dive and speak to Dan  
(mention my name...for what it's worth :-)

Can't tell you about driving and drinking. Except don't do it :->

Water temp is 82 F, viz from 40-100, ave. diving depth around here is 80-100 feet.  
Everything is a drift dive, with currents about 1-3 knots. Divemaster carries a float and  
everyone else drifts along. Have fun.


-- 
Robb Aley Allan, The Gulfstream Group
220 Sunrise Avenue, Palm Beach, FL 33480
voice: 407/ 832-4013   email: rallan@helical.com
Co-founder/director, Gotham Users of NeXT (GUN)
Newsgroups: rec.scuba
From: 6845400@LMSC5.IS.LMSC.LOCKHEED.COM
Subject: Re: Info on Belize --HONEYMOON
Organization: Lockheed Missiles & Space Company, Inc.
Date: Tue, 21 Jul 92 16:29:55 GMT

My son and daughter-in-law returned from Belize the first part of June.
They spent two or three days in and around Belize City, there is a Baboon
Reserve, actually theyare Howler Monkeys, a Zoo, the Mayan type ruins and
another place that they went.  I'll get some more information from them
tonight, things like where they stayed before they went to Lighthouse Reef
Resort, cost, problems and the like.  I do know that they were advised before
they went to get all kinds of shots if they would be spending anytime at all
on the mainland before going to the reef resort.
Please email me or post again on 7-20 or 7-21 and include your phone number.

ps: next year my husband, teenage daughter and I are planning on going to
    Belize.
------------------------- Original Article -------------------------
Xref: iscnvx rec.travel:13161 rec.scuba:4893
From: kjhart@pbhya.PacBell.COM (Kenny J. Hart)
Newsgroups: rec.travel,rec.scuba
Subject: Info please....on Belize
Date: 20 Jul 92 22:31:19 GMT
Followup-To: rec.travel
Organization: Pacific * Bell

Okay....I'm new to both these newsgroups...so easy on the flames.

I have the chance to go to Belize in October and don't know
a bloody thing about the place, except that the diving is
excellent.  I don't dive, (yet) but would do whatever it takes
to get certified.  I am not looking for how to get certified,
because I'll bet that subject has been beat to death here.

My main goal here is to find out what else there is in Belize,
like the best beaches, reefs, hotels, restaurants, etc.

Thanks for your input, my honeymoon depends on it :*)


--
  Kenny Hart
  kjhart@pacbell.com

Newsgroups: rec.scuba
From: tierney@nevada.edu (TIM TIERNEY)
Subject: Re: How to stop sucking air?
Organization: University of Nevada System Computing Services
Date: Thu, 23 Jul 1992 16:33:15 GMT

In article <nkukgms@twilight.wpd.sgi.com> duis@sgi.com (David Duis) writes:
>In article <1992Jul21.212842.2652@helical.com> rallan@gun.com writes:
>>Sue Raisty writes
>>Personal opinions:
>>
>>2. Detune your reg if you can [...]
>
>Eh?  You'll breathe less if you make it HARDER to breathe, requiring

>This suggestion has come up before; maybe you can help me see the
>logic of it.
>
>Cheers,
>
>Dave Duis                        NAUI AI Z9588, PADI DM 43922, EMT

Dave,

I don't really understand the logic either, but I can tell you that at
least for me it definitely works.  When I first started out the same
advice was given to me because I was an ASP as well.  The first time I
tried it on a repetetive dive that was almost identical in profile to
the one before it, I got a 38 minute dive instead of a 28 minute one.

Like they say on the commerical, Why ask Why?

Tim
NAUI Advanced


Newsgroups: rec.scuba
From: njs@scifi.uucp (Nicholas J. Simicich)
Subject: Re: A note on using computers for decompression diving
Organization: Nick Simicich, Peekskill, NY
Date: Sat, 25 Jul 1992 01:25:36 GMT

In article <1992Jul20.185632.15989@unlv.edu> grover@isri.unlv.edu writes:
>In article <1992Jul18.141257.13952@scifi.uucp>, njs@scifi.uucp (Nicholas J. Simicich) writes:
>)
>) The Oceanic bar graph is not the same at all as the Delphi bar graph.
>) The Oceanic, far as I know, shows the general nitrogen loading of the
>) individual.  I have no idea how they actually arrive at this, but I
>) suspect that it is not representative of any individual compartment in
>) the model.  It seems to be some combination of that and stop depth.  
>)
>) The Delphi bar graph is representative of the controlling compartment
>) at the depth that the diver is diving at.  As such, it is not always
>) the most loaded compartment.  There may be compartments that you don't
>) see which are more loaded than the compartment that you do see,
>) because they are not controlling.  It may be that you have ascended
>) above the critical depth for that compartment and it is 95% loaded but
>) it can't control, or it may be more loaded than the compartment shown,
>) but is slower so it won't saturate before the compartment shown as
>) controlling does.
>) 
>
>According to the manual for the Oceanic DataMax Sport (and Sherwood's
>"The Source" -- which are virtually the same machine), the nitrogen
>loading bar always shows the MOST saturated compartment.  So, if I am
>at 80 ft until the bar gets into the caution zone, then accend to 25
>ft my bottom time increases (because a different compartment is
>controlling), and the nitrogen bars will slowely disappear until
>another compartment 'catches' up will it at which time the bars will
>start to reappear.  

This is different from the Delphi in that an offgassing compartment
can never be the controlling compartment, even if it were more
saturated than another compartment (unless you were in decompression)
so it would never be shown.

>Sounds similar to your Delphi, no?

The other main feature is that the Delphi tells you which compartment
it is displaying.  You can, to some extent, use that feature to
determine what your deco status is/will be if you go over the NDL.

-- 
Nick Simicich - uunet!bywater!scifi!njs - njs@watson.ibm.com
SSI #AOWI 3958, HSA 318, NAUI #14065
Join the movement ---  turn 'to bush' into a verb.
Newsgroups: rec.scuba
From: spindler@rcf.rsmas.miami.edu
Subject: Re: Diving headaches
Reply-To: spindler@rcf.rsmas.miami.edu
Organization: RSMAS
Date: Thu, 30 Jul 92 16:28:22 GMT

In article <1992Jul30.021402.20788@nuscc.nus.sg>, ccechk@nuscc.nus.sg 
(Heng Kek) writes:
>I'm a relatively new diver (NAUI OW1 Apr92) and experience headaches
>when I'm down after a while.  I've been told by an assistant
>instructor that it is because I tend to hold my breath.  Well, I DO
>try to breathe slowly and may unconsciously hold my breath at times.
>
>But my question is, how does holding one's breath underwater while
>scuba-diving cause headaches?  
>
>I imagine it would have something to do with Nitrogen in the blood.
>Any enlightenment would be most appreciated.

As has been mentioned in the other posts on this thread, the CO2 buildup, sinus
trouble, muscle spasms and so on can all cause headaches.  A couple of things
I've noticed in the course of my diving also can cause headaches.  They are
bright glare in the water, and extensive exhaling through the nose.  The glare
hits me in high-visibility shallow water (less than 50 ft deep) and my clear
silicone mask doesn't block it much.  The cure for this is to switch to a
darker mask, as in one with black silicone seals.  This increases the
"tunnel-vision" effect, but drops the ambient light level.  The second effect
is that I tend to push air out my nose frequently to clear the mask (the dang
seals are getting old and stiff 8-(  ), and to equalize the mask.   This
stresses my sinuses and can bring on some discomfort in the upper sinuses.  My
approach is to reduce my habitual nose-exhales to a minimum, and reduce the
sinus stress.  I've noticed that when I dive in colder, low-viz Pacific water I
don't have either problem, and I don't get any headaches.  My air consumption
in both cases is about the same.

----
Todd Spindler                                  
TSpindler@rsmas.miami.edu                 RSMAS/MPO  University of Miami
From: michaelh@altair.net.hawaii.edu (Michael Hoffhines)
Newsgroups: rec.scuba
Subject: Re: more on sharks - a backward step for Hawaii?
Date: 28 Jul 92 18:48:57 GMT
Organization: University of Hawaii

In article <1992Jul27.041426.2445@cs.su.oz.au>, Greg Ryan wrote:
>  > Resources Committee of Hawaii to invest $200,000 on the eradication
>  > of tiger, gray and Galapagos sharks in near shore waters.

and later, in article <1992Jul27.234402.19559@cs.su.oz.au> Greg retracts
his earlier statement:

>  I've since received some e-mail on this from David Hunt 
>  (David.Hunt@GANGES.EDRC.CMU.EDU) who says that he and others
>  have written to Hawaiin officials and been assured that there
>  is no such plan to eliminate sharks.

I'd like to know the names of the officials that responded. Even tho
there is, as of yesterday, a state wide budget freeze there has already
been $US150,000.00 allocated for research/removal of certain shark
species following the death of a Maui woman this past winter due to
a tiger shark attack (Some of you may be interested in reading the
earlier posts and can find them through one of the scuba archives.
In fact, I would encourage Mr. Dodd who posted the flame that started
this thread to do so. Accessing the archives is explained
in the FAQ. The FAQ, in turn, says:
    You can get a copy of this FAQ by sending mail to scubasearch 
    [bywater!scifi!scubasearch@uunet.uu.net] with "Subject: FAQ".

There does seem to be more large sharks in Hawaii's near-shore waters
and some local areas have ceased cleaning fish and rinsing the remains
into the water near boat launches as a result. Whether this is due to
a general increase in numbers (the last state-wide shark eradication
was close to 20 yrs ago, I believe) or as a response to fishing pressure
I don't know.

Interestingly, there was a report of a toothed-whale attack off of
Kona (on the Big Island) by pilot whales (although I suspect that
they were not pilot whales, but rather false killer whales). In any
case, there hasn't been any cry to eradicate toothed whales from 
Hawaiian waters. Yet. 1/2 :-)

- Mike
From: bob@hubcap.clemson.edu (Bob)
Subject: Re: Rehersal of weight belt ditching
Organization: Clemson University
Date: Mon, 27 Jul 1992 12:05:51 GMT

>Bruce writes:

>        If you can hold your breath for 30 seconds under water, there is a
>relatively safe way to practice weight belt ditching.  Start at the surface,
>take the regulator out of your mouth, and take a breath and hold it.  Dive to
>the bottom at say 10 to 15 feet, and release your belt there.  You will get a
>rapid ascent without possibility of embolism, as your lungs were filled at the
>surface.
>--
>Bruce Dunn    Vancouver, Canada   Bruce_Dunn@mindlink.bc.ca

You need to add that this is true provided you have not been diving and
your blood is not already sturated.

Bob Staaf  
bob@hubcap.clemson.edu
 
Newsgroups: rec.scuba
From: dan@resonex.com (Dan Kell)
Newsgroups: rec.scuba
Subject: Re: Lead/Weights
Date: 24 Jul 92 12:36:08 GMT
Organization: Resonex Inc., Sunnyvale CA

My wife made all of our wt. bags. We paid $20.51 for a 25 lb. bag of shot.
Karen used doubled cheese-cloth to make the bags. Locally wt. bags are
selling for $2.25/lb. (ouch!)

I've been using Aqua-seal on our gloves. Put them on, squirt some Aqua-seal
into the palm and rub it around where you want it. When you have all the 
areas covered you want just pull 'em off and place on a stick or something.
I usually put mine on the handle bars of my bicycle. They also make a pretty
good drying rack too.

I also wear out my finger tips first. My index fingers go first. Probably
because I use my finger when I have to "land" on something. Aqua-seal seems
to be more flexible than tool-dip also. 


-- 
Dan Kell                  
email to dan@resonex.com
"Imagination is more important than knowledge."   A. Einstein
Newsgroups: rec.scuba
From: njs@scifi.uucp (Nicholas J. Simicich)
Subject: Re: Skin Diver Magazine
Organization: Nick Simicich, Peekskill, NY
Date: Mon, 27 Jul 1992 13:15:15 GMT

In article <1506kqINN4ap@darkstar.UCSC.EDU> jdale@cats.ucsc.edu (Jonathan Dale) writes:
>
>In article <1992Jul26.175222.14305@dale.ksc.nasa.gov> sdavis@laforge.ksc.nasa.gov (Steve Davis) writes:
>>
>>  I recently bought my first copy of Skin Diver, mainly to check out the  
>>mail-order sources in the back.  A dealer had given me a reprint (from a 1990 
>>issue) of a review of the U.S.Divers Conshelf SE2 regulator, but I thought it 
>>read more like an advertisement than a review.
>>
>> Well, it seems that _all_ of the equipment reviews in Skin Diver are written 
>>in that style, with encouragement to "check out this great piece of gear at  
>>your nearest _____ dealer" and the like.  It also seemed strange that all of  
>>their reviews were exactly two pages long, with no interspersed advertising-- 
>>making it really convenient to do single-page reprints for use by dealers.
>
>I don't think it's anything special about that particular magazine.  Your
>description fits a lot of magazines; one might even say all (I would hope that
>some, like DAN's newsletter, would differ...) are like this (but maybe someone
>can point at an exception?).  I think everyone involved in the diving business
>is a little too cozy with everyone else.  Magazines doing everything they can
>to help out manufacturers, instructors getting a commission from the dive shop
>to sell their students gear, etc.  A great deal of conflict of interest.  I
>would be curious to see any negative review of anything by anyone....

Skin Diver Magazine is one of the slimiest, most unethical pieces of
crap to be found on your magazine retailer's shelf.  The rumors in the
industry is that you get a review article, periodically, as a package
with your advertising.  (This applies to both equipment reviews and
travel reviews.)  Note that SDM adopts few campaigns without making
them into some sort of advertising campaign: The recent buoyancy
campaign was done in 'cooperation' with a bunch of resorts (who just
happen to be offering the ultimate buoyancy course for free if you
stay at the resport in the adjacent prominently placed ads), Nikon,
and SeaQuest.  The magazine has almost nothing in it but infomercials
and advertorials, although there are a couple of columns that have
read editorial content.  I believe that at least one of these columns
was started in reaction to Rodale's Scuba Diving Magazine.
Unfortunately, it also is the largest circulation magazine in the US
Diving Magazine market, and therefore, it taints all of the others.
None the less, there are some magazines that do head-to-head
comparisons.  Scuba Times has at least compared features and so forth.
But for real 'Consumer Reports' stuff, you have to look at
Undercurrent and In Depth.

-- 
Nick Simicich - uunet!bywater!scifi!njs - njs@watson.ibm.com
SSI #AOWI 3958, HSA 318, NAUI #14065
Join the movement ---  turn 'to bush' into a verb.
From: leej@sgi.com (Lee Jones)
Subject: Re: Skin Diver Magazine
Organization: Silicon Graphics, Inc.
Date: Tue, 28 Jul 1992 18:00:50 GMT

In article <1992Jul28.014853.11085@engage.pko.dec.com> zipp@foosw6.enet.dec.com (Eric S. Zipp) writes:
>In article <nr8bfd4@fido.asd.sgi.com>, leej@sgi.com (Lee Jones) writes...
>> 
>
>	... so does anyone have the phone number/contact address???
>

Undercurrent: 516-466-7788 (they may have an 800 number, I don't know it)
In-Depth: 800-326-1896 (subscription orders only)

Regards, Lee
From: davew@hp-ptp.ptp.hp.com (Dave Waller)
Date: Tue, 21 Jul 1992 16:54:06 GMT
Subject: Re: A note on using computers for decompression diving
Organization: HP Pacific Technology Park - Sunnyvale, Ca.
Newsgroups: rec.scuba

In rec.scuba, adb@herboid.uucp (Anthony DeBoer) writes:

> In <930544@hp-ptp.ptp.hp.com> davew@hp-ptp.ptp.hp.com (Dave Waller) writes:
> >Or, if you can afford it, carry a backup computer. I, and several other 
regular
> >contributors here carry EIT/Orca Delphi's as our primary instruments, with
> >a Skinny Dipper in the BC pocket as a backup, since htey both use the same
> >decompression model.

> Sorry if I've missed this if it's come up before, but why would you want
> your two computers to use the same model?  I know a pair of divers who ...
> deliberately bought two different units and
> stay with whichever one is more conservative at the moment.

There is nothing wrong with this idea, and is likely to be a bit more 
conservative. However, it requires constant monitoring of both computers, which 
in my opinion outweighs the advantage. If the backup unit uses the same 
decompression model, it can be put in the BC pocket and forgotten, unless there 
is a failure of the primary instrument.

Dave Waller 
YMCA Instructor
Newsgroups: rec.scuba
From: ogborn@kaos.corp.sgi.com (Geoffrey S. Ogborn)
Subject: Re: Certification racket
Reply-To: moth@Moth.com
Organization: Moth Inc.
Distribution: rec.scuba
Date: Tue, 28 Jul 1992 19:30:24 GMT


I was just certified Open Water I from NAUI. The class I took has 8 or 10 pool sessions,
and I had the opportunity to do 9 ocean dives one of which was a night dive (the best)!

I was instructed that 130ft was the limit but was also taught of many of the dangers of
diving that deep!
-- 
============================================================================
Geoffrey Ogborn				* Success consists of getting up   *
DBA: Mosaic, Pricebook, A, ZEUS		*  getting up just one more time   *
ext 2404				*  than you fall.                  *
ogborn@kaos.corp.sgi.com
From: leonglaw@hpsgm2.sgp.hp.com (Lawrence Leong)
Date: Fri, 24 Jul 1992 00:46:23 GMT
Subject: Re: Diving as a Religion?
Organization: HP Singapore
Newsgroups: rec.scuba

In rec.scuba, Charlie_Gibbs@mindlink.bc.ca (Charlie Gibbs) writes:

|In article <1992Jul22.083900.3118@resonex.com> dan@resonex.com
|(Dan Kell) writes:
|
|>Gee, we could all spend outrageous amounts of money on equipment as tithes
|>to the Holy Church! Dive Trips as scared pilgrimages! B-)))
|                                   ^^^^^^
|     You're not thinking of making sacrifices to a shark or something,
|are you?  :-)

Well, why DO you carry a knife and go down with a sacrificial offerrin..er,
buddy?

Sorry, couldn't resist that!

lawrence
lawrence@hpsgsh.sgp.hp.com

|
|Charlie_Gibbs@mindlink.bc.ca
|"What's that in your hand, a crash helmet?"
|"Oh, I hope not."  -- Jose Jimenez
Newsgroups: rec.scuba
From: zeke@chiton.ucsd.edu (Rob Scott)
Newsgroups: rec.scuba
Subject: 2 divers die in San Diego
Keywords: diver deaths, San Diego
Date: 31 Jul 92 02:21:15 GMT
Organization: MPL of SIO at UCSD

Two San Diego area divers are missing and presumed dead after diving
in La Jolla on Tuesday.  The divers were both divemasters with significant 
experience.  Apparently, they were attempting to dive to at least 200 feet 
for the thrill of it (there are no wrecks or anything much of recreational 
diving interest below 80 feet in the area that they were diving in), and 
were diving with air and no special support of any kind.

It's interesting to note the differences in how the L.A. Times (San Diego
Edition) and the San Diego Union Tribune reported the story.  The San Diego
paper only wrote about the divers being missing, and conservatively quoted
one lifeguard who participated in the search as saying "Frankly, we are at a
loss as to what happened.  Both men were experienced master divers."  The
L.A. Times reported a much different story, however, writing "Scuba
enthusiasts xxxx and yyyy set out to dive deeper than either had ever been.
They set their goal at 250 feet, which amateur and expert divers say is
about 100 feet beyond reason."  The fiancee (also a diver) of one of the men 
was quoted as saying "I heard their plan, and thought it was insane."  She
said that last weekend the two had made the deepest dives that they had ever
made, to about 200 feet, and that they seemed to enjoy the narcosis effects
and thought that it was "cool" to go that deep.


Rob
-- 
                    -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
     Rob Scott, System Administrator for the Marine Physical Laboratory
            Scripps Institution of Oceanography, UC San Diego
    Internet: zeke@mpl.ucsd.edu  Cserve: 76176,637  Voice: (619)534-8588
Newsgroups: rec.scuba
From: bob@hubcap.clemson.edu (Bob)
Subject: Shark gifs
Organization: Clemson University
Date: Thu, 30 Jul 1992 01:06:09 GMT

Hi all!

     Anyone out there have any gifs of sharks or dolphins or misc
critters? If so, please email or tell me how and where to get them.

Thanks in advance!

Bob
bob@hubcap.clemson.edu

Newsgroups: rec.scuba