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Reply #30: Actually, depending on how you look at it, the air IS kinda "pressurized"... [View All]

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MercutioATC Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Apr-21-08 11:13 AM
Response to Reply #28
30. Actually, depending on how you look at it, the air IS kinda "pressurized"...
...in that, when you're breathing it at depth, the ambient pressure is greater than on the surface...and, so, the air is also at greater pressure.

Marr said it well. As long as you don't take a breath at depth, there's no danger of an air embolism during a fast ascent (one could also just exhale all the way up if one had taken a breath at depth).

As far as the bends, that has to do with nitrogen loading in the blood. Recreational dive tables only go to 130' (the maximum approved depth for recreational diving), but I'd estimate that he'd have to be at 150' for 3-4 minutes to make nitrogen loading an issue...and recreational dive tables are very conservative.
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  -The Astie is gone! THE ASTIE IS GONE!!! KansDem  Apr-21-08 08:59 AM   #0 
  - Okay, I have to ask  raebrek   Apr-21-08 09:03 AM   #1 
  - and why no bends on the way back up in such a short time?  DS1   Apr-21-08 09:04 AM   #3 
  - Would you get the bends  MuseRider   Apr-21-08 09:13 AM   #9 
  - I don't know either. I don't know how long you have to be deep before it becomes an issue going back  DS1   Apr-21-08 09:17 AM   #13 
  - Obviously  MuseRider   Apr-21-08 10:47 AM   #29 
  - Divers don't breathe pressurized O2...they breathe air.  MercutioATC   Apr-21-08 09:21 AM   #15 
     - Yup I missed that one entirely!  MuseRider   Apr-21-08 10:44 AM   #28 
        - Actually, depending on how you look at it, the air IS kinda "pressurized"...  MercutioATC   Apr-21-08 11:13 AM   #30 
  - No bends because he wasn't down there long enough (I'm a diver)  MercutioATC   Apr-21-08 09:19 AM   #14 
  - There was a beautiful movie about those divers  Hardhead   Apr-21-08 12:49 PM   #32 
     - Haven't seen it...I'll have to pick it up. I was thinking more of Audrey Mestre.  MercutioATC   Apr-21-08 12:55 PM   #33 
  - Because the nitrogen inhaled was not under pressure...  hootinholler   Apr-21-08 09:32 AM   #19 
  - If you don't breathe at depth, you won't have pressure issues.  Marr   Apr-21-08 09:34 AM   #21 
  - My first thought when I read the article. If he was knocked unconscious, he should be  OmmmSweetOmmm   Apr-21-08 09:07 AM   #4 
     - 2 words...."icy water"  MercutioATC   Apr-21-08 09:22 AM   #16 
  - Something about this stinks. However, look how flimsy those barriers are.  DS1   Apr-21-08 09:03 AM   #2 
  - Look how it is crushed.  raebrek   Apr-21-08 09:09 AM   #5 
     - Indeed. This sounds like another fabricated car crash a la "Redline"  DS1   Apr-21-08 09:15 AM   #11 
  - I believe you're thinking of the old Aston Martin DB.  Sentinel Chicken   Apr-21-08 09:09 AM   #6 
  - Yes! Silver with black interior  KansDem   Apr-21-08 09:16 AM   #12 
  - Thanks for the clarification!  KansDem   Apr-21-08 09:29 AM   #18 
  - Shame. Beautiful car.  flvegan   Apr-21-08 09:11 AM   #7 
  - The driver was an Aston Martin engineer?  JustABozoOnThisBus   Apr-21-08 09:11 AM   #8 
  - Well all that means is that this hunk of junk will now be on the market  MadHound   Apr-21-08 09:15 AM   #10 
  - Another shot for GREAT perspective. Whoa.  flvegan   Apr-21-08 09:24 AM   #17 
  - Ok, even more BS. Quickly rescued by firemen?  DS1   Apr-21-08 09:33 AM   #20 
     - In frogmen outfits, I'm sure.  flvegan   Apr-21-08 09:36 AM   #22 
     - If they were shooting, they would've had a safety team on site. n/t  Marr   Apr-21-08 09:39 AM   #23 
     - It said they were simply driving it to the next shoot  DS1   Apr-21-08 09:41 AM   #24 
        - You'd think they'd trailer it in a semi.  flvegan   Apr-21-08 09:43 AM   #25 
           - according this article  DS1   Apr-21-08 09:47 AM   #26 
           - The other article said that it's one of five.  MercutioATC   Apr-21-08 09:47 AM   #27 
     - just to dispel the conspiracy theories  jammyboyjim   Apr-22-08 06:18 AM   #35 
        - Thanks for chiming in, and Welcome to DU.  flvegan   Apr-22-08 06:22 AM   #36 
           - Cheers..  jammyboyjim   Apr-22-08 06:34 AM   #37 
              - Why wouldn't they have trailered the car in?  jmowreader   Apr-22-08 09:25 PM   #38 
  - The whole thing was staged; they just wanted to use the line "shaken, not stirred."  dbaker41   Apr-21-08 11:20 AM   #31 
  - Imagine my surprise when they used that line  Canuckistanian   Apr-22-08 09:42 PM   #39 
  - One more picture, from the top. He was very lucky.  uppityperson   Apr-21-08 01:05 PM   #34 
 

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