Mailing List Archive Mailing List Archive
Chemically? He is indeed a true inert gas (OK won't go into electrons & orbitals) :-> Hint ammonia is a N2 compound. Physiologically - hope U bone up on this important area, as N2 is not inert at higher partial pressures & U don't even have to go to that high ppN2 to feel it. He - well for all intents & purposes is physiologically inert in the sense of He narcosis. Now when it comes to HPNS, we have a different kettle of fish, but still the statemnet N2 is less inert than He is valid, in particular if chem reactivity or narcosis potential R the issues. Safe bubbles Esat ATikkan --- "David E. Smith" <dsmith218@ho*.co*> wrote: > Trey, > In what manner is nitrogen not inert as compared to > helium? I think this is the first I have heard > that. > > Also, do you not subscribe to the notion that other > gases' presence in an O2 environment makes you less > susceptible to a CNS 02 tox? (e.g. 50/50 at 1.6ata > is more forgiving than 100% at 1.6ata) I won't tell > you where I learned that <g>, but I don't believe > the reason why (IF it is even true) was understood. > So I can't argue one way or the other with any > credibility. > > David E. Smith > > God Bless America! > Hunt and Punish! Dead or Alive! > We are coming for you! > > > -----Original Message----- > From: Trey [mailto:trey@ne*.co*] > Sent: Tuesday, December 11, 2001 7:34 AM > To: Ferry Ouwerkerk; Techdiver@Aquanaut.Com; > Quest@Gu*. Com > Subject: RE: Oxygen Clock > > > > Helium has no effect as to the offgassing part of > deco it and of itself. > The sum of the inert gases is merely the opposite of > the oxygen window. All > that matters in this sense is the window applied > with the toggling effect I > described. > > What is key with helium and why in real life it > does shorten deco is that > 1) you do not get the damage with helium that you > get with nitrogen, 2) it > is far easier to breathe and causes you to develop > less co2, 3) it is truly > inert unlike nitrogen, 4) it lowers the narcotic > effect and makes you more > alert, 5) it does not precipitate the immune > reaction that high partial > pressures of nitrogen do and forms smaller bubbles, > 6) it comes out of > tissues more easily. > > -----Original Message----- > From: Ferry Ouwerkerk > [mailto:f.ouwerkerk@qu*.nl*] > Sent: Sunday, December 09, 2001 4:50 PM > To: Trey > Subject: Re: Oxygen Clock > > > George, > > Do helium based deco mixtures affect the > deco-profile in any way, or can you > us the software generated profile based on nitrox > based deco gasses and jus > do the breaks when nesscary? > > thanks, > Ferry > > ----- Original Message ----- > From: "Trey" <trey@ne*.co*> > To: "Charles Roth" <divr555@ho*.co*>; > <techdiver@aquanaut.com>; > "Quest@Gu*. Com" <quest@gu*.co*> > Sent: Sunday, December 09, 2001 2:52 PM > Subject: RE: Oxygen Clock > > > > > > The short version of the answer is that we came > up with this ( 12 on , 6 > > off )by trying everything and arriving at that. We > knew from any of our > > diving that long exposures to higher ppo2s left us > feeling like we had a > > chest cold. We started out with the usual crap > that is taught out there > 20 > > on then break ) and found that to be useless. We > found loss of vital > > capacity with these regimens. Now we have no such > negative results. > > > > The oxygen takes less than 12 minutes to reach as > high an effective > > saturation level as is useful. Beyond that the > body reacts by constricting > > blood vessels everywhere which limits off gassing, > by trying to protect > the > > lining of the lungs and hence thickens the > transfer area by adding cells > and > > excreting mucous which impedes gas transfer, and > by causing swelling of > the > > lung tissue which further reduces gas exchange > capability, not to mention > > scarring and long term damage that in my opinion > will come back to haunt > the > > agencies who teach the baloney. > > > > Returning to a more normoxic ppo2 will reverse > these effects. However, > if > > you do not return soon enough, the effects take a > lot longer to reverse. > The > > big and important thing here is not to depend on > reversing this action, > but > > to preempt it and keep it from fully developing > and thus make what does > > occur easier to reverse and at the same time > actually improve your off > > gassing by opening the capillaries back up and > allowing gas to escape from > > the tissues into the blood. This "toggling" back > and forth has proven to > be > > the absolute best method of gas use in > decompression. DIR deco. > > > > If you fail to do this at any point in the deco > using high ppo2s you > will > > merely be holding gas in tissues which may expand > before it can be removed > > as you move up - another massive flaw in all of > the existing deco > programs. > > > > As you get higher in the water column, off > gassing is more safely and > > effectively achieved by the moving the gradient > and letting gas bubble > into > > the bloodstream and be caught and removed by the > lungs, but lower down > this > > will not work - one more huge flaw in deco > programs. > > > > You really should look on the WKPP site and read > some of my profiles and > > decompressions on the longer dives to see all the > massive deviations from > > what is thought to be correct by the agencies. > > > > In fact, I will tell you right now that this is > just like deep air - the > > same idiots who fought for their precious deep air > are the ones who teach > > the most incorrect deco and theories of deco. The > same people - give them > a > > wide berth in all areas of diving since you can > NOT teach pigs to sing. > > > > If want real information, come to the proven > sources. > > > > > > > > > > > > -----Original Message----- > > From: Charles Roth [mailto:divr555@ho*.co*] > > Sent: Sunday, December 09, 2001 2:53 AM > > To: trey@ne*.co*; techdiver@aquanaut.com > > Subject: RE: Oxygen Clock > > > > > > Trey, > > In fear of sounding stupid, yes, I would really > like to know how you all > > came up with this. Or at least point me in the > right direction to find the > > resources about this. Thanks. > > > > Chuck R > > > > > > >From: trey@ne*.co* (Trey) > > >To: "Isaac Callicrate" <icallicrate@ho*.co*>, > <mjblackmd@ya*.co*>, > > ><techdiver@aquanaut.com> > > >Subject: RE: Oxygen Clock > === message truncated === __________________________________________________ Do You Yahoo!? Check out Yahoo! Shopping and Yahoo! Auctions for all of your unique holiday gifts! Buy at http://shopping.yahoo.com or bid at http://auctions.yahoo.com -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]