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hookem12387

macrumors 6502
Sep 30, 2007
428
0
Austin, Texas
2 things :)
 

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Schtumple

macrumors 601
Jun 13, 2007
4,905
131
benkadams.com
The coasters are awesome :D
 

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.JahJahwarrior.

macrumors 6502
Jan 1, 2007
438
0
you use oxygen for deco stops?:eek: did you mean compressed air?

Are you on tri-mix or nitrox or something?

Yep, using o2. 100% oxygen. Think about it: you decompress to get rid of the n2 in your body's tissues. If you breathe air or any concentration of nitrox less than 100% o2, you are still adding n2 to your body. If you are trying to get rid of all of your old PC stuff, would you buy 100% mac or would you buy 21% mac and 78% pc? It'd take forever to get rid of your PC stuff if you keep buying 78% pc. So you switch to 100% mac and fwham before you know it you don't have any more BSoD in your life ! :D So when I reach 20' I'll switch to o2, cutting my deco time significantly. For example, the other day, the switch cut my deco obligation by 2/3. Makes a big difference.

Trimix is not being used because I have no worries about the narcotic potential of the gas at only 20 feet--you use trimix to replace the nitrogen in the breathing gas to avoid nitrogen narcosis at extreme depths, generally you try to keep the "equivalent narcotic depth" to 100 feet or so. o2 has no worries with END because it has no nitrogen, but you cannot breathe o2 below 20 feet very safely, as a Po2 of 1.6 is considered the maximum limit for most divers. Pushing it further significantly increases the risk of an oxygen toxicity hit.

So yes I do breathe oxygen on my deco stop, but the doubles I use for my breathing gas on the working portion of my dive contain air (or sometimes EAN32 if I've got the money for the stuff :D ), not pure o2.
 

appledrone

macrumors regular
Jun 6, 2008
171
4
Devon, UK
Yep, using o2. 100% oxygen. Think about it: you decompress to get rid of the n2 in your body's tissues. If you breathe air or any concentration of nitrox less than 100% o2, you are still adding n2 to your body. If you are trying to get rid of all of your old PC stuff, would you buy 100% mac or would you buy 21% mac and 78% pc? It'd take forever to get rid of your PC stuff if you keep buying 78% pc. So you switch to 100% mac and fwham before you know it you don't have any more BSoD in your life ! :D So when I reach 20' I'll switch to o2, cutting my deco time significantly. For example, the other day, the switch cut my deco obligation by 2/3. Makes a big difference.

Trimix is not being used because I have no worries about the narcotic potential of the gas at only 20 feet--you use trimix to replace the nitrogen in the breathing gas to avoid nitrogen narcosis at extreme depths, generally you try to keep the "equivalent narcotic depth" to 100 feet or so. o2 has no worries with END because it has no nitrogen, but you cannot breathe o2 below 20 feet very safely, as a Po2 of 1.6 is considered the maximum limit for most divers. Pushing it further significantly increases the risk of an oxygen toxicity hit.

So yes I do breathe oxygen on my deco stop, but the doubles I use for my breathing gas on the working portion of my dive contain air (or sometimes EAN32 if I've got the money for the stuff :D ), not pure o2.

Ahhh, I was gonna say....as o2 becomes toxic at about 30 feet doesnt it?

Nitrogen narcosis is always fun to watch on students, we used to give them one of those kiddy toys where you have to push the shapes through the right holes at about 110ft, funny as hell watching the confusion when they cant push the star through the round hole!:D
 

tonie

macrumors 6502
Mar 29, 2008
487
0
just re-purchased the treo 755p. that was the first smartphone i had, then i sold, and now bought it back.
 

half.k

macrumors newbie
Jul 18, 2008
25
0
Well there were three of us sharing and they came back and replaced our coals, which is nothing really. I'd say we tapped it in 45 minutes and it was about $25. Good business if you ask me. As far as the actual device. I was told they can range but most who buy one for home spend about $100. I won't be buying one for home. I'm not that into it. :)


r u serious??? i live in uk, and here you buy one for ike 30 pounds, the big ones, small ones are around 15 pounds... and coals are something like 2 pounds for a set of 20!!!
 

MattG

macrumors 68040
May 27, 2003
3,869
568
Asheville, NC
A doggy! Though I don't consider her a "purchase" because it makes her sound like a 'thing' rather than a 'being'. Let's just say she's our latest "addition." :)
 

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Compile 'em all

macrumors 601
Apr 6, 2005
4,131
359
Nice call on the premium denim. I have a pair and they are very comfortable. Did you get them from the Nordstroms Anniversary Sale?

These jeans are not only ugly but they are have nothing to do with premium denim whatsoever. Premium denim = The Flat Head, Samurai, PBJ, Dior, Julien Red, Acne, Imperial.
 

pagansoul

macrumors 65816
Aug 10, 2006
1,040
43
Earth
I just got in the mail my Mac Aquarium from Jake Harms. He has a web site and sells recycled iMacs as Aquariums for those of us too lazy to make our own. Picture is a bit fuzzy (iphone in bad light) but I don't have any fishies yet so its just sitting on my desk looking cute.
 

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