Diving Deeper

[Liquid]

lost-yoopers:

What you say is not exact.
I know I, for example, am very sensitive, and know myself and my behaviour in water so good, that I feel even the slightest beginning of a narcosis. as I said before, sometimes as shalow as 18 M. It dosent mean that I am too deep, it just means that I am extra carefull, and extra watchfull, both for my instruments (my first simptom is losing track of time) and for deterioration of my condition, that will couse an abort of the dive.

 

[Liquid]

syruss-
about you last 2 questions-

1-yes, simptoms are decreased, to the amount you would have had with the same partial pressure of niterogen you would have had with air.

2-Trimix will usualy reduce the narcosis even as it is a mixture of three gasses (usualy Oxygen, Niterogen and Helium) as the partial pressure of the niterogen will be reduced even more.

 

[Butch103]

I am extra careful......I maintain extra care when I hit 60 ft................although I don't feel any effects, as far as disorientation goes up to 90 fett. ( I haven't been any deeper)

 

[Butch103]

I have never seen a mermaid not naked....???

 

[Walter]

Everyone is narced at depth, most don't "feel" it.

Nitrox is just as narcotic as air. With nitrox you are replacing nitrogen with oxygen. Both gases are narcotic to approximately the same degree. Trimix and heliox are less narcotic because helium is not nearly as narcotic as nitrogen or oxygen.

Dived is gramatically correct, dove is also valid, but not preferred. Dived has been in the English language for a long time, dove (except when referring to a bird) slipped in around 1860 - 1880.

DSSW,

WWW™

 

[Liquid]

Walter-
I belive what you said is not true. Niterox is less narcotic than air by a direct relation to the relative amount of niterogen in it. It might be becouse niterogen is way more narcotic than oxigen or becouse the results are not cumulative, but still, from knowledge and experiance, when diving nitrox you are less "narced".

 

[The Chairman]

Oxygen has similer narcotic effects... however you metabolise oxygen and not nitrogen. Hence Oxygen does not "stay" in the system like nitrogen. This is what increases your total bottom time. Oxygen at higher partial pressures than 1.4 ata is not reccomended and could be fatal if it exceeds 1.6ata. NitrOx is NOT for deep diving, just for safer diving at normal depths.

 

[Green_Manelishi]

Hey Walter,

Others might "have dived",
some "have dove" ...

but I "have diven".

As for narcosis, try a shot of Argon. Way narcotic. As is krypton
(or is it Neon?)

Which brings up a question: if you fill your drysuit with Neon and
then apply a slight electrical charge to the inflator nippple will
you glow like a firefly or flicker like a deranged light bulb?

 

[100days-a-year]

Liquid,Walter..I'd defer to one of the docs on this but as far as dive planning goes;I consider 02 narcotic.In real life I have yet to dive a mix dive back to back with the same ppN but greater 02 to determine if I feel narced by it.It would bode well tho to consider that almost all deco programs either consider 02 narcotic or give you the option of considering it so.

 

[Lost Yooper]

I've often wondered about "dived" vs. "dove".

Liquid, what you're basically saying is that you can "handle it". There's a lot of dead people who have said the same thing. Look, I've been there too, and I've "handled it" and luckily nothing ever went dramitically wrong.

The bottom line about narcosis is if you're narced (which you are even if you don't know it), then you are at a huge disadvantage if things get out of hand.

Helium mixes fix all that -- as does nitrox.

Mike