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Leon, or Nom de Plume or whatever you call yourself. Please forgive me in advance for suggesting this as there has never been a bona fide posting from Rocketmail in the history of this list. Still, some of the most humorous and outrageous scribblings have emanated from this dubious source. In much same way that North Korea, Iran , Libya and Cuba are associated with terrorism and shrill polemic denunciations Rocketmail is the usual venue chosen by those who would launch ad hominem attacks. Since the real agenda would appear to be attacking the messenger rather than the content of the message, in this case George Irvine, your remarks set off the bs alarm. If your work mail server has a "profanity" monitor be advised that the same busybody system administrator will take an interest in your use of RocketMail, which is not as anonymous as you think. Nevertheless, for the time being let us give your musings, however credible, a fair hearing. I dont think anyone on this list would argue that repeated and extended exposure to hyperbaric oxygen is good for you. Pulmonary and CNS toxicity are a real threat and that is the reason for considering theoretical concepts such as the CNS clock and taking air breaks. What we are talking about are short term exposures which are used to offset the potentially more dangerous consequences of leaving pressurized dissolved gas in your tissues. This is the techdiver and cavers list ....Remember? Discussion about decompression and the consequences of not adequately doing it take up a lot of bandwidth on this forum. There is a gigantic fear out there regarding decompression from extended extreme exposure dives. This is not an irrational fear. Perhaps, to be balanced, you should discuss the histology of explosive or inadequate decompression events. I think most everyone would agree (except the deep air aficionados) that high ppn2s are also not such a great thing when viewed in the light of what is now becoming known about erythrocyte rigidity and the adverse consequences this has on the hemodynamics of the microcirculation. You obfuscate the issue here by bringing up the subject of commercial divers who are subject to repeated hyperbaric exposures as a routine occupational hazard. Most of the people who traffic on this list only rarely perform dives involving lengthy decompressions and are more concerned with avoiding the symptoms of dcs rather than pulmonary irritation. In short order you get to your real agenda which is criticism of George Irvines conduct of dive operations. Like your other points you are completely vague in specifying just what is wrong with the way we run our operations other than to admit, in the same breath, that they are fairly safe. You state the obvious when you suggest that the operational specifics of one form of diving may not apply to another. It is true that the logistics of cave diving are different than those of diving an openwater wreck. So what? Unless your server blocks out these messages as well you would be advised to note that we are constantly discussing our procedures and methods for diving offshore. In fact 90% or more of our diving is offshore. We live in South Florida and dive two to three times weekly. George, Robert Carmichael and myself are constantly discussing offshore diving on this and other lists. Perhaps you also suffer from uncorrected myopia. This would account for your making such an ill informed statement. As for your patronizing "poor newbies" remark. What is unfortunate is the stream of misinformation and poorly reasoned nonsense that newcomers to socalled "technical" diving are subjected to. Place your face close enough to the screen so that you can read the text and count the number of "Gear for Sale" notices which show up on these lists. Then ask yourself the "Gospel" according to who were these people the victim of. Regards, Bill Mee Leon Elders wrote: > > George, > > The profane crap on this forum passing though my work mail server is > the reason I have been forced to use a free mail service. > > There is a big difference in alveoli damage in frequent users of high > ppO2 users. Autopsy data on non-smoking commercial divers is rather > disturbing. The real problem occurs in repeative day exposures and my > personal experience is there is a world of difference between 1.2 and > 1.5 or 1.6. I have heard many complaints of "finger tip neuritis" > which almost never occur below 1.2, even after daily 4 or 5 hour > exposures. > > George, my real objection to your posts is your self-centered view > that all dive operations should be run the way yours is run. I have no > doubt that you have fine tune it to a fairly safe operation. However > your operational specifics may be a poor choice for other types of > diving and I'm sure ocean wreck diving is one. As I said you are > myopic and a lot of poor newbies take your word for gospel. > > For most operations I have no doubt the 80% is much safer. > Stand up in font of the UHMS and ask which is safer. > You are a safety freak, aren't you? > > Leon > > ---"G. Irvine" <gmirvine@sa*.ne*> wrote: > > > > Leon, a "doctor" with a free email account, and a personal attack for > > his opening post to techdiver? Why don't you set us all straight, and > > tell us about the actual diving that was done to back up what you are > > saying ( which is nothing). I have presented to the UHMS on this > > subject, and I did not see anyone complaining. You are FOS, pal, and > an > > obvious phony. Maybe Frank Winter? Is there something here that is > > striking a point of sensitivity with you , "Doc"? > > > > _____________________________________________________________________ > Sent by RocketMail. Get your free e-mail at http://www.rocketmail.com > > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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