HDTenEightyP/NetNews huggingface dataset:
From: speckman@peanuts.informatik.uni-tuebingen.de (Heike Speckmann)
Subject: Buying an underwater camera in Hongkong
Organization: "Lehrstuhl fuer Technische Informatik, Uni Tuebingen"
Date: Mon, 28 Sep 92 10:00:11 GMT

In november I will stay a few days in Hongkong. Now I am wondering if it is
a good idea to look for a underwater camera, Nikonos or sea&sea for example, 
because they are very expensive in Europe. Is there anybody who knows 
prices or so ? I know that many "normal" cameras are much cheaper.

Thank you in advance 

Heike 
-- 
*****************************************************************************
Heike Speckmann                 | E-Mail: speckman@peanuts.informatik.
Universitaet Tuebingen          |               .uni-tuebingen.de
Lehrstuhl fuer  Techn. Info.    |
Sand 13                         | THE REAL GRISULINE, ALREADY JOINED THE
7400 Tuebingen                  |   FIRE BRIGADE
Germany                         |
*****************************************************************************
From: joseph@shogun.smos.com (Joseph Crunk)
Newsgroups: rec.scuba
Subject: Aluminum 80 Tanks FOR SALE
Date: 6 Oct 92 00:03:30 GMT



I have two aluminum 80's that I would like very much to sell. They are about
one year old (new). They have just had a visual inspection. The insides still
look like brand-new tanks. Boots included. 3000 lbs of South Bay air include.
Valves included. One is yellow, the other one is a bright lime green.

(I'm selling them because I have too many tanks)

Interested parties can reach me by e-mial: joseph@smos.com

Joseph Crunk
joseph@smos.com
Newsgroups: rec.scuba
From: rhouston@glacier.sim.es.com (Richard Houstan)
Subject: Re: Anybody been to Puerto Penasco?
Organization: Evans & Sutherland Computer Corp.
Date: Wed, 7 Oct 1992 00:39:38 GMT

In article <1992Oct6.191531.1058@zia.aoc.nrao.edu> troberts@zia.aoc.nrao.edu (Timothy Roberts) writes:

   Newsgroups: rec.scuba
Path: javelin.sim.es.com!orca!uunet!think.com!spool.mu.edu!umn.edu!lynx!zia.aoc.nrao.edu!troberts
   From: troberts@zia.aoc.nrao.edu (Timothy Roberts)
   Organization: National Radio Astronomy Observatory, Socorro NM
   Date: Tue, 6 Oct 92 19:15:31 GMT
   Lines: 17

   I am planning a vacation at the end of October to the Northernmost
   point of the Gulf of California.  Has anybody been to Puerto Penasco
   and lived to tell of it?  I plan on being down there for only a couple
   days of diving and sun.  Any responses would be greatly appreciated.


I haven't been to Puerto Penasco, but I have friends who have been there. From what I've heard 
you would be better off going an extra 75-100 miles and diving in the San Carlos (Near Guaymas) 
area. There is a fairly good dive operation there called Gary's and with good visibility it
can be a real nice place to dive. It is also a very quiet area most of the year. One exception
is Memorial day weekend.
Coming from your area in New Mexico you could either take 80 to Douglas and cross the border, or
take I10 all the way to Tucson and cross the border at Nogales. The smaller border crossings 
are usually faster.


If you want the phone number for Garys, or any other info. send me email and I'll try to find the
information you want.

						
					Richard


P.S. I almost forgot, one of the funnest dives I ever done was at an island just off the
     coast where there is (or at least was) a coloney of very friendly sea lions. I also saw a 
     quite large manta ray on the same trip.



	 

Newsgroups: rec.scuba
From: waldo@cybernet.cse.fau.edu (Todd J. Dicker)
Newsgroups: rec.scuba
Subject: Re: careers in diving...
Date: 29 Sep 92 20:49:07 GMT
Organization: Cybernet BBS, Boca Raton, Florida

> >Other than the usual perception of a working diver
> >being an underwater contractor or instructor, what
> >are some other occupations for diving related careers?

How about:
     (1)  The guy who gathers golfballs out of the water hazards at golf 
courses;
     (2)  The guy who fetches dropped equipment and cameras from dive boat
loading and unloading docks;
     (3)  The guy who looks for George Bush's career (it's so far in the 
toilet, you'd need dive gear to find it);
     (4)  Line judge for Florida human-powered submarine races.

Any other ideas? :)
From: tjfeue@bb1t.monsanto.com
Newsgroups: rec.scuba
Subject: Re: careers in diving...
Date: 1 Oct 92 14:25:49 CST
Organization: Monsanto Company, St. Louis, MO

In article <1992Sep30.200900.10519@netcom.com>, agent86@netcom.com (Michael McBride) writes:
> In article <1992Sep22.202337.5825@wixer.cactus.org> will@wixer.cactus.org (Bill Staniewicz) writes:
>>Other than the usual perception of a working diver
>>being an underwater contractor or instructor, what
>>are some other occupations for diving related careers?
> 
> 	You can scrape the barnicles off the bottom of boats in marinas!
> 	I hear you can charge about $1/foot, and boats need this about
> 	once every 28 days  :-}
> _____________________________________________________________________________
>   Michael McBride		   |__"I've done...questionable things."-Roy
>   [agent86@netcom.com]		   |~~"More human than human..."-Tyrell
> =============================================================================

I heard about a marine biologist that was being hired to scrape mussels 
off oil platforms in California.  He then sold the mussels to restaurants
and seafood distributers.  

Ted Feuerbach - Scientific Systems Consultant
Disclaimer: Monsanto didn't say this, I did.
From: janice1@prefect.uucp (22100-kargol)
Subject: Re: Prescription Mask 
Organization: Bellcore, Livingston, NJ
Date: Wed, 30 Sep 92 19:34:37 GMT

One of the local optical shops in my area performs the work to bond the 
lenses to the mask but when I spoke to them about doing this they 
suggested a different approach. They wanted to install a clip in the 
upper middle part of the lens (single lens mask). What you do with this 
clip is take an old pair of glasses (of which most of us have a drawer 
full of), take off the ear pieces and push the metal bar between the 
lens of the glasses into the clip. Basically the clip held the old pair 
of glasses in the proper location in the mask. This appeared to work on 
the demo that they had in the store, personally I went with the TUSA 
Liberator and the "off the shelf" lens, but you may want to give it a 
try.

Dave Fortner - PADI AOW
Usual Disclaimer Applys

Newsgroups: rec.scuba
From: tim@ais.org (Tim Tyler)
Subject: Battery Replacement on Oceanic computer
Organization: UMCC
Distribution: na
Date: Mon, 28 Sep 1992 05:54:59 GMT

  Later today I'm shipping off my DataMaster Sport dive computer back to
Oceanic, Inc. in San Leandro CA for a battery change.
 
  When the battery died on it last year, they had my dive computer for two
full months before they finally shipped it back to me, & I've heard horror
stories from people who've experienced 4 month waits for the same
battery-replacement (& calibration) job!
 
 
   Has anyone recently sent in their computer to Oceanic?  If so, how long
did they/have they had it for?


  Tim

-- 
 Tim Tyler   Internet: tim@ais.org  MCI Mail: 442-5735  C$erve: 72571,1005
P.O. Box 443     Packet: KA8VIR @KA8UNZ.#SEMI.MI.USA.NA
Ypsilanti MI
48197-0443                  PADI, USPA, AFCEA, INEOA, P226, VFR700, etc.
From: tjfeue@bb1t.monsanto.com
Newsgroups: rec.scuba
Subject: Re: Diving watches
Date: 29 Sep 92 08:15:52 CST
Organization: Monsanto Company, St. Louis, MO

In article <c25u02T823GD01@JUTS.ccc.amdahl.com>, czw70@ccc.amdahl.com (CA Whitfield) writes:
> 
> I have been offered an excellent deal on an Omega Seamaster Professional
> and I'd like to know if any net.divers have anything to say on that watch,
> or other watches of that ilk (Rolex, Tag-Heuer, Seiko, etc).

I just recently retired the old Casio (the one with the capillary depth
gauge) for a Citizen dive watch.  I really like it but it came without
the instructions, which made using it the first time sort of an adventure
game.  Its got an electronic depth gauge and bottom timer as well as several
other features.  Good to 200M and the buttons may be operated at depth.
I paid about $200 for it, but other people that I know that have them paid
as much as $350 for one (I lucked out and found one at Sam's).  The high
end ones like Rolex (IMO) are nothing more than an expensive status
symbol.  The Tag-Heuer is a cheap watch with an expensive price tag.
Seiko?  I think a little over priced too.  Omega has a long standing 
reputation.  Much longer than Seiko.  If you get a real good deal on
it, buy it.                                                           

Ted Feuerbach
Disclaimer:    Do you really think that Monsanto shares this opinion?
Stupid Quote:  Too much of a good thing is never enough.    -Mae West 
Newsgroups: rec.scuba
From: pweissma@shearson.com (Philip Weissman)
Subject: Nitrox Class
Organization: Lehman Brothers
Distribution: usa
Date: Tue, 6 Oct 1992 17:12:36 GMT

I have made arrangements for a private nitrox class (ANDI) for my dive
club, the Sea Gypsies.  There are a few spots left so I thought I'd
open the class to the net.  The class will be held on Thursday,
October 22 from 6-11 pm in Manhattan (Village area).  The instructor
is Bob Raimo, the owner of Enchanted Diver.  Bob usually charges $150
for this class at his store in Queens but has agreed to come to
Manhattan to teach us for $100 per person.  There will be no required
dives needed for certification which further reduces the cost compared
with other nitrox courses.  Prerequisites consist of OW certification
and a fair amount of experience, preferably in the north-east.

If you're interested contact me ASAP.


Philip Weissman
pweissma@shearson.com
(212)362-6234
From: ray@tsw.UUCP (Ray Izumi)
Newsgroups: rec.scuba
Subject: Re: Going to Cozumel - questions
Date: 1 Oct 92 22:06:36 GMT
Organization: The System Works, Redmond, WA

Izzcalled lomotil - works real good!

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ray Izumi, The System Works, Redmond, WA     206-823-4685      uunet!tsw!ray
"No amount of not finding something proves it doesn't exist."
From: story@sgi.com (David (Duis) Story)
Newsgroups: rec.scuba
Subject: Re: Wrist vs. Console computers ?
Date: 2 Oct 92 00:46:29 GMT
Organization: Silicon Graphics, Inc.

In article <898@ozz.oasis.icl.co.uk> sch@getafix (Simon Hamner) writes:
>Hi,
>  Im thinking of getting a dive computer soon and was just wondering
>whether to get a wrist or console mounted computer.

I recently experienced first-hand the best reason NOT to get a
wrist-mounted computer.  If you want to peel off your wetsuit top, you
have to take off the computer.  A fellow diving out of my boat a few
weeks ago lost his computer off the side of the boat.    

I'm sure he would not have made that mistake had he not been
hypothermic, but if his computer had been on a console, that could not
reasonably have happened.

The bottom line is that I'll never consider wearing a wrist-mount
computer on my arm --- if I get one, it'll be attached to my console.

>  My PADI instructor said the console mounted were a bit iffy since if the
>batteries went you lost your pressure measurement, or you had to have a
>standard pressure gauge fitted, which surely negates the reason for having
>a console mounted computer in the first place.

I use two full consoles for redundancy.  I'm not using a computer to
get rid of equipment, I'm using it to extend my bottom times.

>  And against the wrist mounted ones, someone I spoke to said their readings
>could be influenced by the movement of the arm ...

Absolutely.  I recommend a fixed location for your computer in order
to have consistent results from dive to dive.  The most "accurate"
location would be at the center of your N2-absorbing organ, your
lungs, but anything approximating that depth in the water column
should be fine.

Cheers,

David Story                        NAUI AI Z9588, PADI DM 43922, EMT
story@bent.wpd.sgi.com		  Every dive is a decompression dive.
From: kseah@silver.ucs.indiana.edu (K H Seah)
Newsgroups: rec.scuba
Subject: Looking for catalog info.
Date: 6 Oct 92 23:39:41 GMT
Distribution: rec.scuba
Organization: Indiana University

Hi guys,
I'm pretty new to the diving community and am looking to
buy a regulator setup.  Does anyone know where I can get
a hold of a Poseidon catalog (maybe the number for their
customer service?)?  I've been to the local dive shops
but they don't carry any gear from Poseidon.  Any info
will be greatly appreciated.

- Hwee
Newsgroups: rec.scuba,bit.listserv.scuba-l
From: pweissma@shearson.com (Philip Weissman)
Subject: Nitrox Class
Organization: Lehman Brothers
Distribution: usa
Date: Tue, 6 Oct 1992 14:52:35 GMT

I have made arrangements for a private nitrox class (ANDI) for my dive
club, the Sea Gypsies.  There a few spots left so I thought I'd open
the class to the net.  The class will be held on Thursday, October 22
from 6-11 pm in Manhattan (Village area).  The instructor is Bob
Raimo, the owner of Enchanted Diver.  Bob usually charges $150 for
this class at his store in Queens but has agreed to come to Manhattan
to teach us for $100 per person.  There will be no required dives
needed for certification which further reduces the cost compared with
other nitrox courses.  Prerequisites consist of OW certification and 
a fair amount of experience, preferably in the north-east.

If you're interested contact me ASAP.


Philip Weissman
pweissma@shearson.com
(212)362-6234
Newsgroups: rec.scuba
From: rallan@helical.com (Robb Aley Allan)
Subject: Re: Diving watches
Reply-To: rallan@helical.com
Organization: Helical Systems, Ltd.
Date: Tue, 29 Sep 92 23:05:36 GMT

CA Whitfield writes
   
   I have been offered an excellent deal on an Omega Seamaster Professional
   and I'd like to know if any net.divers have anything to say on that watch,
   or other watches of that ilk (Rolex, Tag-Heuer, Seiko, etc).


My 5-year-old Seamaster, serviced annually, just flooded this year at 90 feet. Cost me  
about $250 to replace the entire guts/dial (everything rusted in 24 hours).

My TAG/Heuer seems to be OK.

My watch service center notes, however, that ANY watch with 

1. a pop-up crown rather than a screw-down crown, or
2. a pop-off back or screw-off back rather than a solid stainless case with guts  
accessible ONLY thru the face

are going to be more susceptible to flooding, since there are more openings and more  
O-rings.

Hey, go for a Seiko G-shock and forget about it.

-- 
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: story@sgi.com (David (Duis) Story)
Subject: Re: Bechaut Alladen
Organization: Silicon Graphics, Inc.
Distribution: na,local
Date: Fri, 2 Oct 92 00:41:11 GMT

In article <1992Sep23.024447.4637@mailer.cc.fsu.edu> mayne@cs.fsu.edu writes:
>[....] I am also reasonably sure
>that the Skinner Dipper doesn't support deep diving or significant
>decompression as well, but Skinner Dipper owners may correct me on
>that point.

The 'dipper uses the same algorithm as all the other Orca computers,
so it is also a full decompression computer.  It also calculates and
displays 1' increment deco stops, which I find quite informative as
opposed to the 10' increment stops the Uwatek/Beauchat/USD/Parkway
computers use.

Finally, the battery life on the latest model, the Marathon, has been
drastically improved.  Varying reports range from a minimum of 100% to
a max of 300%.

>Watching the count down is only a small psychological advantage.

But I think knowing the actual ceiling (to the nearest foot) can
provide an approximation of that same information, and give you an
idea of where to hang in the column based on your actual ceiling.

I'm not arguing against the Uwatek computer, just against 10'
increments on the ceilings.  I think the Uwatek computer is quite a
fine computer.

Cheers,

David Story                        NAUI AI Z9588, PADI DM 43922, EMT
story@bent.wpd.sgi.com		   Oxygen is a drug in California.
From: story@sgi.com (David (Duis) Story)
Newsgroups: rec.scuba
Subject: Re: Information about advanced deep diving course
Date: 1 Oct 92 19:03:00 GMT
Organization: Silicon Graphics, Inc.

In article <1992Sep21.141626.22989@mailer.cc.fsu.edu> mayne@cs.fsu.edu writes:
>In article <q3mkbik@twilight.wpd.sgi.com> story@sgi.com (David Story) writes:
>>
>>This [DSAT] algorithm does not allow decompression in the classic Haldanean
>>sense.  It has no delta-M values (values used to increase the
>>overpressure allowed at depth, commonly used in Haldanean
>>decompression models.)  This is not necessarily bad: the delta-M
>>values can be taken to be zero, which makes it extra conservative.
>>However, I'm not sure what the decompression computers do, so I can't
>>say.
>
>Either I am confused or this is not correct. If delta-M is taken
>to be zero then the nitrogen allowed in a compartment is constant,
>regardless of depth. 

Correct.

>In that case the model would say that it is
>okay to surface or you are already exceeding the ceiling. 

I don't think this is the right conclusion.  Remember that M-values
are just a convenient notation for an overpressure ratio.  

Let me try an example.  To make it simple for my math-impaired brain,
let's ignore real numbers and set some convenient ones.  Ignore the
partial pressure of N2 and assume one ATM is 30fsw (for convenience in
math.)  For simplicity, say your model has only one compartment, which
allows a 2:1 overpressure ratio.  The corresponding M-value is
therefore around 60fsw.  

Now descend on some dive that loads your theoretical single
compartment to 120fsw.  You've exceeded the no-stop limits.

If you set dM to zero, you still can't surface, and you can still do
decompression.  The model says you can ascend to a depth at which your
overpressure is 2:1.  If your compartment is at 120fsw pressure,
that's at half of 120fsw or about 60fsw.  Now you're offgassing.  Your
ceiling gets shallower.  You ascend, stepwise or linear, doesn't
matter, you're still decompressing.  And you're still using a model
that has dM=0.

>The theory
>of decompression stops is that you can tolerate more nitrogen at
>depth, and must wait at a given stop until you off gas enough so that
>it is safe to ascend to the next stop or the surface. Without delta-M
>greater than zero this just won't work.

Correct, but see above.  This still works with dM=0.

Cheers,

David Story                        NAUI AI Z9588, PADI DM 43922, EMT
story@bent.wpd.sgi.com		  Every dive is a decompression dive.
Newsgroups: rec.scuba
From: gordon@meiko.com (Gordon Henderson)
Subject: Re: DPV info wanted
Organization: Meiko Scientific Corp.
Date: Mon, 5 Oct 1992 10:51:29 GMT

There is an interesting incident reported in the BS-AC incident report of
a diver running out of air while using an DPV of some kind .. Apparently
the jet of water caused his octopus to freeflow, draining his tank
without him noticing! I'll dig it out & post the actual report if anyones
interested, but I think it was only a few lines.

-- Gordon Henderson
Newsgroups: rec.scuba
From: robw@tfs.com (Rob Woerner)
Subject: Air-integrated computers
Organization: TRW Financial Systems
Date: Mon, 28 Sep 1992 06:54:50 GMT

	Everyone talks about how terrible air-integrated computers are:
"Jeez, if you lose power at depth, you'll die."  Has anyone had a
recent model, well maintained, that has failed in a serious way in the
middle of a dive?  It seems to me that if they were that treacherous, 
they would have disappeared from the market long ago.

Of course, failures caused by ignoring the low battery indicator don't
count.
Newsgroups: rec.scuba
From: craig@cattnts.canada.ncr.com (Craig Campbell)
Subject: Re: Bechaut Alladen
Organization: AT&T / NCR Canada Ltd., Toronto, Canada
Distribution: na,local
Date: Fri, 2 Oct 1992 14:34:13 GMT

In article <qic4k28@twilight.wpd.sgi.com> story@sgi.com (David (Duis) Story) writes:

>But I think knowing the actual ceiling (to the nearest foot) can
>provide an approximation of that same information, and give you an
>idea of where to hang in the column based on your actual ceiling.

>I'm not arguing against the Uwatek computer, just against 10'
>increments on the ceilings.  I think the Uwatek computer is quite a
>fine computer.

>Cheers,

>David Story                        NAUI AI Z9588, PADI DM 43922, EMT

Well, given the effect of waves, and the ability of your "generic" diver
to maintain his/her depth, I'd have to suggest that a ceiling displayed 
in anything short of 10' increments would be a waste of time.  A 1' 
granularity of display might be interesting for deco stops, but its usefulness
escapes me.  Would you then offgass at 22ft for 1.5 min, 21 ft for 1.75 min,
20 ft for 1.99 min, etc?

craig

-- 
Craig Campbell		|	These opinions are entirely the result of a 
Systems Engineer	|	small butterfly crashing into the far side
NCR Canada,		|	of the planet.  Chaos Rules.
an AT&T Company		|	I speak for no one, except, possibly, myself.
Newsgroups: rec.scuba
From: drc@coelho.COM (david r coelho)
Subject: o-ring tool?
Organization: Coelho Publications, Fremont, CA USA
Date: Sat, 26 Sep 1992 03:49:49 GMT

A while ago I recall mention of a tool for removing O-rings from
camera's, etc. I just recently bought a video case and am in need
of just such a tool. Could someone in the know please tell me where
I can purchase this tool. Ideally, with a phone number. Thanks much!!!

-- 
david r. coelho                        email: drc@coelho.COM
coelho publications                           drc%coelho@uunet.uu.net
43000 christy street                   voice: (510) 770-0875
fremont, ca 94538-3198                 fax:   (510) 770-0728