HDTenEightyP/NetNews huggingface dataset:
From: dunbar@boulder.colorado.edu (S Dunbar)
Subject: Inner Ear Bleed, ? Semi Circular Cannals??
Reply-To: dunbar@boulder.colorado.edu (S Dunbar)
Organization: University of Colorado, Boulder
Distribution: na
Date: Thu, 3 Sep 1992 15:51:42 GMT

I have a request for some information or advice, etc.  I will tell you
what happended, but not where, cuz I am in the middle of a report to post
of a great 2 week scuba trip.

I was on one of my last dives of the trip at 100 feet of SW. 

On the descent everything went fine, we followed the DM down the anchor line
and I cleared my ears as entering the water and on the way down without any
pain.  Got down to the bottom and started swimming and got very dizy and
just a little vertigo.  I thought to myself at the time what is this feeling
I first thought Narcosis, but after ascending a few feet nothing changed,
I still had the vertigo feeling and little dizy.  I told my DM
and buddy on my slate and I made a safe ascent to the surface and Boat.

On this dive, one of the other divers happended to be a ER Doctor from
California, He was travelling with his family and kids and had an OTO Scope
with him, so he looked in my ears and said that my ear drums looked fine and
my ear essentially looked fine.  So he seemed to deduce that I had an inner
ear bleed in one of the semi circular cannals.  I was dizzy for a couple of
days and still currently have episodes of vertigo.  As soon as I got back
from my trip, I went and saw my own doctor who is an internist, 
I also had problems with flying we took tons of little interisland 
flights and the changes in pressure really did a number on my ears.
The vertigo problem was unrelated to this, I think or it atleast
my dizzyness dive was before the fact that my ears and flying were hurting.

Anyways, my doc said that the dizzyness was probably an inner ear bleed and
he also said that I had developed an ear infection on one side.  So he
put me on antibiotics and thats cleared up.  But My real concern is the dizziness problem, it was really scary to be that deep and have the feeling that i did.
I now have an appointment with an ENT Doctor (ear, nose, and throat) who is
also a diver.  SO I will see what he says.

I was just curious if this is an experience that any of you have had out there
in rec.scuba land.

thanks

ps, use e mail, to save the bandwith.

Scott
 
Scott\      /\/\  /|email: dunbar@boulder.colorado.edu
  /***\  /\/*/**\/*|Department of Molecular, Cellular, and Developmental Biology
 /  /\ \/**\/    \ |University of Colorado at Boulder, Boulder, CO  80309-0347
From: pkap@panix.com (Peter Kapner)
Newsgroups: rec.scuba
Subject: Florida part II
Date: 28 Aug 92 02:29:59 GMT
Distribution: na
Organization: PANIX Public Access Unix & Internet, NYC



 
>I'm supposed to be going to the Keys a week from Thursday, and after
>the devastation I've heard about and seen on TV I just can't believe
>that things will be functioning even close to normally.  People's
>homes were utterly flattened and uprooted and the exodus of over a
>million people to the north can't be easily recovered from I'm sure.
 
Okay, I wrote this a couple of days ago and since then I've obviously
gotten
more information both from people on the net and the dive
stores/hotels themselves.
 
What I've been able to put together so far is that the Key Largo area
is not functioning.  The guy I talked to at Quiessence said that
there's no electricity north of Marathon and that it's going to be out
for the next several weeks at least, so they're all going on vacation
for a month.  The hotel I booked in Largo doesn't answer their phone
at all.  Okay, Key Largo's out.
 
The people at Hall's Dive Shop in Marathon say that the power is on
and off.  They're trying to run their dives normally, but it's
difficult.  Power is being "rationed" and those found to be wasting it
are having their power shut off.  The reason for rationing it, they
claim, is that the connection to the mainland has been severed and all
the power they have is currently being generated on the Keys.
 
The hotel I booked in Key West, the Marriott Casa Marina, claims that
life down there is just dandy and they think I ought to come on down
and have a grand old time.
 
So what I was thinking was that I'd have to bypass most of the Keys
and head straight for Key West but then I heard that they're not
letting people onto the highway for the Keys unless you can prove that
you're a resident of the Keys.
 
The question now becomes, can I get through by car?  Are there flights
currently operating between Miami and Key West?
 
I think an alternate plan is a good thing to have and with that in
mind I pulled out the Florida map and targeted Longboat Key as a
potential alternate.  This is on the west coast, approximately 200
miles from Miami from what I can tell, and it would seem to be far
north enough from where Andrew hit to have been spared the storm's
wrath.  It would also seem that there are some nice resorts in the
area.
 
Has anyone been there and have anything to say about it?  How's the
diving on the west coast of Florida?  
 
Once again, any and all comments are welcome.
 
--Peter K.
-- 
-------------------------------------------------------------------------------
Peter Kapner
pkap@panix.com
-------------------------------------------------------------------------------
From: sdodd@OES.ORST.EDU (Stephen M Dodd)
Newsgroups: rec.scuba
Subject: Re: Information about advanced deep diving course wanted
Date: 2 Sep 92 20:56:34 GMT
Distribution: usa
Organization: Oregon Extension Service, Oregon State University, Corvallis, Or.

In article <1992Sep2.143537.10082@mailer.cc.fsu.edu> mayne@cs.fsu.edu writes:
>
>> If you get BENT once you can never dive again. That's
>>assuming you live the first time. Once you've been BENT your chances of 
>>getting bent again, even in shallow waters is greatly increased.
>
>Decompression sickness is seldom fatal, though it can be. One DCS hit
>does not mean that you can never dive again. It is not clearly established
>that getting bent once greatly increases your risk on future dives. It
>may increase your risk. It may just indicate that you are unusually
>susceptible. A minor hit may not have any long term consequences at all.
>This is not as clear cut as you make it out to be.

   I would like to add the observation that I know an NAUI Instructor
   who used to dive Hawaii who had his wife suffer three progressively
   worse hits terminating her diving experiences.  This in shallow water
   after both of them had consumed thousands of tanks together in deeper
   water over the previous few years.  They regard the first hits, occuring
   some time apart without problems, as most un-deserved.  The last one
   came much sooner.  She was OKed to dive by the doctor, who was well
   known for his understanding of DCS.  But now they don't dive.

   We are talking complete colapse of the individual, followed by
   blindness, paralysis, and other symptoms leading to lots of chamber
   time.  She did recover though.

   Steve

-- 
- Stephen M. Dodd, System Analyst, Oregon Extension Service
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sdodd@oes.orst.edu          Internet          Oregon State University
503-737-3550                                  Corvallis, OR 97331
From: leej@sgi.com (Lee Jones)
Newsgroups: rec.scuba
Subject: Re: depth in the US of A
Date: 3 Sep 92 20:14:36 GMT
Organization: Silicon Graphics, Inc.

In article <1992Sep3.101601.3886@desire.wright.edu> wall@hel4.brl.mil (Jeff Wall) writes:
>In article <pbp8i4s@fido.asd.sgi.com> leej@sgi.com (Lee Jones) writes:
>>
>>Bottom line, my student has to remember that it's 14.7 psi/ATM
>
>I think that is an excellent question.  A diver shouldn't be working on a Dive
>Master cert to understand this type of concept so crucial to all aspects of
>diving from using a lift bag to air embolisms.
>

Well, what I'm really wondering is it necessary for a student to know or care that 
14.7 psi = 1 ATM.  I think it's *really* important to know that at 66 ft. the pressure
is three times that at the surface.  That clearly has tons of effects.  But is it
important for them to know it in psi?  Except to perhaps relate that to the pressure
in their tank...  

It's not a *big* deal, but I am doing a rewrite of my exam and am trying to look at 
all the questions with a somewhat critical eye.  

Regards, Lee

P.S. The posts here are becoming almost recursive in their depth of referencing - 
     particularly the deep diving course thread.  I'm *really* interested in this,
     but am finding it hard to even find the new text within the post.  Please only
     leave in parts of the previous append(s) that are required for the context of
     your post.   Thank you and good evening.
  
     (Oh Nick - I accidentally said "Append" when I meant "Post".  Do I have to 
      go back to Purchase for de-briefing?)
From: Charlie_Gibbs@mindlink.bc.ca (Charlie Gibbs)
Newsgroups: rec.scuba
Subject: Re: How about the Oceanic Datamax?dir
Date: 26 Aug 92 21:15:35 GMT
Organization: MIND LINK! - British Columbia, Canada
Distribution: world

In article <1992Aug26.085705.682@ccsvax.sfasu.edu>
f_cnnghamjk@ccsvax.sfasu.edu writes:

>In article <14583@mindlink.bc.ca>, Charlie_Gibbs@mindlink.bc.ca (Charlie
Gibbs)
>writes:
>> In article <1992Aug25.160036.677@ccsvax.sfasu.edu>
>>
>rsoft!agate!slc3.ins.cwru.edu!magnus.acs.ohio-state.edu!zaphod.mps.ohio-state.
>> ed writes:
>>
>>>I was once concerned that the surface interval is not displayed.  I now see
>>>that it is essentially useless information when diving with a computer.
>>
>>      Ours display surface interval.
>
> In the dive log?

     Nope, you got me there.  But at least it's available between
dives.  I use it and the stored bottom time to work backwards from
the current time of day to log my time down and up.

Charlie_Gibbs@mindlink.bc.ca
"Woof!  Woof!  Woof!  Woof!  Hello, I'm Rags."  -- Sleeper

Newsgroups: rec.scuba
From: mac@crchh570.BNR.CA (Michael Campbell)
Subject: Flower Gardens Tragedy
Reply-To: mac@crchh570.BNR.CA (Michael Campbell)
Organization: Bell Northern Research, Richardson
Date: Mon, 31 Aug 1992 19:31:03 GMT

Let me try this again; my first submission got garbled...

I read with some dismay today of a SCUBA fatality involving a
diver at the Gulf of Mexico Flower Gardens Banks dive site. The
article was very brief, stating only that the diver encountered 
problems in roughly 60 ft of water, was pulled to the surface 
and airlifted to John Sealy Hospital in Galveston, but was 
dead on arrival.

Having just come back from a Flower Gardens dive trip two weeks
ago, and planning to return sometime in the next year, I am very
interested to learn more about this incident. This site is 
accessible only via live-aboard dive boats. If anyone on the net
knows which boat was involved, and has any particulars on the 
incident, I would appreciate it if they could post that to the 
group. Perhaps we can all learn from this tragedy.

========================================================================
Michael Campbell                  BNR Inc.               Richardson, Tx.
ESN   444-5595                   Dept 2Q35                 75082-4399
(214) 684-5595               "Dunnage Happens"

Newsgroups: rec.scuba
From: leej@sgi.com (Lee Jones)
Subject: Re: Boyancy control with drysuits
Organization: Silicon Graphics, Inc.
Date: Tue, 25 Aug 1992 18:24:27 GMT

In article <p0amsok@twilight.wpd.sgi.com> story@sgi.com (David (Duis) Story) writes:
>
>		Ave velocity 
>		during last 4fsw  <======  Key fact
>Device		of ascent (in fsw/min)
>--------	-------------
                 [HUMONGOUS NUMBERS DELETED]

Dave - 
I don't doubt that I have some pretty spectacular velocities in the last 
FOUR FEET of an ascent.  I'll admit it - at the end of a dive, I'm pretty
buoyant at 4' with an empty BC.  However, is this really a big concern?

* It seems that the danger of a barotrauma is essentially nil from 4'.
  Also, there seems to be some empirical evidence that most of us 
  almost unconciously exhale continuously during that last second or two.

* How much impact on the decompression schedule is taking place in the 
  change from 1.12 ATM to 1 ATM?   I mean, if you were just "beamed" from
  4' to 0', how much would you be affected?  (Honest question - I just don't
  know).

* My Monitor II doesn't beep in the last four feet.  Has it already turned
  off, or am I slower than I thought, or what?

Regards, Lee Jones
From: FKK@SLACVM.SLAC.STANFORD.EDU
Newsgroups: rec.scuba
Subject: EMERGENCY GEAR FOLLOWUP
Date: 28 Aug 92 18:17:34 GMT
Organization: Stanford Linear Accelerator Center

Several people have asked about the smoke and signal flares I carry with me.
I get them at West Marine.  The problem remains of how to keep them
dry while diving..  THe 30 sec. orange smoke bombs are the trickiest since
they are not waterproof in themselves.  I recently got a waterproof container
from Ikelite which will hold 1 of them.  It cost $20 - it is item #3001.
Ikelite's # is:317-923-4523.  The flares come 3 in a package and won't fit
in the Ikelite container.  I bag them with a "seal-a-meal" type bagger and
store them on a camping water bottle.  This is not perfect - I am looking
for a better container but the flares themselves are sealed at the factory
so I believe they are ok.  I check them for water damage periodically.

If anyone has a suggestion as to other waterproof containers - let me know.
From: ngsw@hpsgm2.sgp.hp.com (Ng Soon Wei)
Date: Wed, 26 Aug 1992 08:16:52 GMT
Subject: Re: DIVING PENANG
Organization: HP Singapore Notes-Server
Newsgroups: rec.scuba

Hi Paul,

I lived in Penang for more than 10 years. However, I was not into Scuba
diving then, so, I'm not able to provide you with the info. However,
if you're interested in FOOD, I may be of some help. Pls Email me at
soonwei@hpsgsh.sgp.hp.com for info.


From: dave@hpdstma.ptp.hp.com (Dave Waller)
Date: Tue, 25 Aug 1992 16:58:24 GMT
Subject: Re: Delphi -> Phoenix Trade-Up Report
Organization: Hewlett Packard
Newsgroups: rec.scuba
Distribution: usa

In article <p0bbd4g@twilight.wpd.sgi.com>, story@sgi.com (David (Duis) Story) writes:
|> In article <Bt8rMK.8vu@scd.hp.com> dave@hpdstma.ptp.hp.com (Dave Waller) writes:
|> >In article <1992Aug18.193224.26012@cattnts.canada.ncr.com>, craig@cattnts.canada.ncr.com (Craig Campbell) writes:
|> >
|> >|> So what did the flashing light mean?  Almost not enough air to finish dive?
|> >
|> >Although the Delphi *is* a full decompression computer, it assumes that
|> >you never want to decompression dive, so going into decompression mode
|> >is a major emergency in the opinion of the computer, and it starts having
|> >fits when the NDL is exceeded. It tries to get your attention by flashing
|> >red lights at you and the words (in big letters), "go up", with a flashing
|> >up arrow. 
|> 
|> Sheesh, it's not that bad!  The computer doesn't say GO UP until it
|> thinks you're going to run out of air.  It just flashes the "ceiling
|> alert" light and tells you your ceiling instead of your NDL, and the
|> total ascent time instead of the temperature.

OK, OK, I exaggerated a little :-)

Call it dramatic effect. Yeah, that's the ticket. It was in the script...

-- 
Dave Waller
YMCA Instructor
From: Charlie_Gibbs@mindlink.bc.ca (Charlie Gibbs)
Newsgroups: rec.scuba
Subject: Re: Dive Computers
Date: 26 Aug 92 00:28:47 GMT
Organization: MIND LINK! - British Columbia, Canada
Distribution: world

In article <1992Aug25.170053.8699@morrow.stanford.edu>
mihai@sep.Stanford.EDU (Alexander Mihai Popovi) writes:

>I wonder what are your thoughts folks, on the price of todays
>Dive Computers.  It seems to me that with the software
>being quite straightforward and the hardware pretty simple,
>the manufacturing cost shouldn't exceed $40-$50.
>So what makes them so expensive?

     True, a computer probably isn't much more complicated
internally than a pocket calculator.  But you don't take your
calculator to 150 feet or bounce it around in your gear bag.
Building something that rugged costs a lot more.  You _don't_
want your computer to fail.

>If the manufacturers complain about low volume, why don't
>they sell them for under $100.  They'll probably sell millions...

     "Yes, we're losing money, but we'll make it up on volume..."  :-)
Seriously, how large a market is there?  A cheap Timex watch might
withstand the depth, pressure, and rough handling that a computer
has to endure.  But a single production run on that watch probably
outnumbers all the divers in North America - or at least all
those who are into it enough to want computers.  With multiple
manufacturers competing for this specialized market, the available
share for each is too small for the economies of scale that Timex
enjoys.

>Is it the liability?

     Maybe a bit, but I think the reasons above are enough.

Charlie_Gibbs@mindlink.bc.ca
I can't be overdrawn, I still have cheques!
From: cmac@anthrax.EBay.Sun.COM (Chris MacDonald)
Newsgroups: rec.scuba
Subject: Uncontrolled ascent w/o weightbelt
Date: 28 Aug 1992 21:42:07 GMT
Organization: Sun Microsystems Federal, Milpitas, CA.
NNTP-Posting-Host: anthrax.ebay.sun.com

I once had my weightbelt fall off while I was at about fifty feet, and the 
bottom was about eight feet below me.  By the time I realized what had 
happened, the bottom was about fifteen feet below, and I was on my way up.

Well, the prospect of an uncontrolled ascent didn't really appeal to me, 
and I was on a 3 day boat trip, so I just kicked hard to the bottom and 
recovered it.  It wasn't as difficult as I had imagined.

My belt weighed 28 pounds.  I weigh 195, and was wearing a full 7mm wetsuit.

Chris
Newsgroups: rec.scuba
From: pyron@skndiv.dseg.ti.com (Dillon Pyron)
Subject: Re: Dive Computers
Reply-To: pyron@skndiv.dseg.ti.com
Organization: TI/DSEG VAX Support
Date: Wed, 26 Aug 1992 15:20:32 GMT


In article <BtKBJ2.4o3@scd.hp.com>, dave@hpdstma.ptp.hp.com (Dave Waller) writes:
>In article <1992Aug25.210351.15758@mksol.dseg.ti.com>, pyron@skndiv.dseg.ti.com (Dillon Pyron) writes:
>
>|> Remeber the Edge, milled titanium was one
>|> solution.
>
>I believe it is aluminum, not titanium.

I remember reading that it was titanium in an old _Skin Diver_.  Now that we
have established the unimpeachability of my source  :-).  The main thing was
that, at the time, Orca felt that a one piece milled housing was the only way
to go.

If anyone has an Edge, I have a simple test to perform.  Of course, if it is
aluminum, your machine may have future strength problems.  (Golly, he's witty
today after being in the pool with a class until this morning).

>
>-- 
>Dave Waller
>YMCA Instructor
>
--
Dillon Pyron                      | The opinions expressed are those of the
TI/DSEG Lewisville VAX Support    | sender unless otherwise stated.
(214)462-3556 (when I'm here)     |
(214)492-4656 (when I'm home)     |"Do something different, DISAPPEAR"
pyron@skndiv.dseg.ti.com          |  "DISAPPEAR"
                                     _A Day On Earth_
                                     Brave Combo
From: FKK@SLACVM.SLAC.STANFORD.EDU
Newsgroups: rec.scuba
Subject: Re: Boyancy control with drysuits
Date: 25 Aug 92 22:44:57 GMT
Organization: Stanford Linear Accelerator Center

This comment applies to wet as well as dry suit diving.  I use a neoprene
dry suit with ankle weights.  Instead of having all of my weight on my belt
I mounted 8 pounds on my BCD backpack.  This eases the strain on my back,
makes it easier to put by BC on in the water ( I have a 12 ' boat so its
easier to don the BCD in the water) and if I should lose my wt. belt. -
which has happened only once in 7 years in about 40 ft of water- I could
kick down to it and put it back on.  Other people I know have done the same.
I used clevis pins to hold the weights on the BCD so they could be
removed in a minute or two if necessary.
From: story@sgi.com (David (Duis) Story)
Newsgroups: rec.scuba
Subject: Re: Boyancy control with drysuits
Date: 26 Aug 92 23:05:21 GMT
Organization: Silicon Graphics, Inc.

In article <1992Aug26.200705.4799@hplabsz.hpl.hp.com> peterson@hpl.hp.com (Chris Peterson) writes:
>In article <CARL.92Aug26141137@atlantis.Cayman.COM> carl@Cayman.COM (Carl Heinzl) writes:
>>
>>>[...] it  only takes about 2psi overpressure to start
>>>tearing the alveoli of the human lung.  

This is not a complete answer.  The lung tearing is a result of
overEXPANSION, not strictly overPRESSURE.  As I stated, you get about
a 10% overfill capacity on (normal) lungs.  That is achieved in about
3.6fsw from 3.6fsw to 0fsw (gauge).  

>	You're right: *any* 4-5fsw ascent with a blocked airway could
>	cause rupture.

Not so.  The PSI change is not important, it's the VOLUME change that
counts.  So to get a 10% overfill from, say, 150fsw you need to ascend
FAR more than 3.6fsw.

>>I understand that the lung volume change in the last x feet is the
>>largest percentage change.  Are there two separate mechanisms at work
>>here?  The overpressure caused by 2 psi (every 5 feet of difference
>>coming up from the bottom) as well as the large volume percentage
>>change seen in the last x feet of ascent.

Carl's got it: it's the VOLUME change which counts.

Cheers,

Dave Story@bent.wpd.sgi.com           NAUI AI Z9588, PADI DM 43922, EMT
    Spearfishing on SCUBA is like hunting bears from a helicopter.
Organization: Senior, Civil Engineering, Carnegie Mellon, Pittsburgh, PA
Newsgroups: rec.scuba
Date: Thu, 27 Aug 1992 21:08:18 -0400 
From: "Peter A. Simon" <ps3p+@andrew.cmu.edu>
Subject: Re: BOUYANCY CONTROL WITH DRY SUITS
	<p3uiheg@twilight.wpd.sgi.com>

The problem of not being able to ditch all of your weight QUICKLY would
be if the unditchable, or difficult to ditch weight, would cause you to
take so long to get to the surface that you'd pass out before reaching
it.

I'd never thought about it before, but having some weight "in reserve"
seems like a good idea (to prevent uncontrolled ascents).  However, it's
gotta be ditchable for the reason in para. 1.

Peter Simon
NAUI Inst. #1434
a certified "Diving Dinosaur"
Newsgroups: rec.scuba
From: andyw@meaddata.com (Andy Welter)
Subject: Lake Huron Diving
Organization: Mead Data Central, Dayton OH
Date: Thu, 3 Sep 1992 15:14:33 GMT
Reply-To: andyw@meaddata.com
Distribution: na

I will be in the Thumb of Michigan this weekend (near Bay City).  Anyone know
of some diving in Lake Huron.  Since I am fairly inexperienced I would prefer a
depth of 60' or less.  Please respond via email since I was lazy and sent this 
posting out late.

---
|Andrew Welter	     |  All views are mine and not |      (513) 865-6822   
|Mead Data Central   |    that of my employer      |      pd&o-ps-ts-dsp       
|P.O. Box 933        |                             |     andyw@meaddata.com
|Dayton, Ohio  45401 |          	           | ...!uunet!meaddata!andyw

Newsgroups: rec.scuba
From: mac@bnr.ca (Michael Campbell)
Subject: Flower Gardens Banks Tragedy
Keywords: death fatality
Organization: Bell-Northern Research, Richardson, Tx.
Date: Sun, 30 Aug 1992 19:36:57 GMT

Having just come back from a Flower Gardens dive trip two weeks
ago, and planning to return sometime in the next year, I am very
interested to learn more about this incident. This site is 
accessible only via live-aboard dive boats. If anyone on the net
knows which boat was involved, and has any particulars on the 
incident, I would appreciate it if they could post that to the 
group. Perhaps we can all learn from this tragedy.

========================================================================
Michael Campbell                  BNR Inc.               Richardson, Tx.
ESN   444-5595                   Dept 2Q35                 75082-4399
(214) 684-5595               "Dunnage Happens"
Newsgroups: rec.scuba