Excellent. That is all I asked. Too many people (and I am not aiming at Norm) tend to shoot from the mouth with no facts.
I tried in my limited little brain to figure this out but to no avail. So I am glad that someone proved proof. BTW, I have always enjoyed Norm's posts and have never found reason to question anything he said before this. I don't want anyone, especially Norm, to think I was picking on him. And I am glad that the proof was produced. (Even tho I can't understand it) I could continue whining and claim that perhaps he took what was said the wrong way, but I think this topic should die a natural death. (Now is that death due to lack of O2 or an over abundance of CO2 and would that be considered a natural death?) Craig, you must be a diver of some sort as you covered several points that are discussed in normal rec diving and covered in rebreather diving. Rob > Assuming he was talking of liquid water, > > Density of air, 0 > C: 1.2920 kg·m^−3 > Density of water 4 C: 1000 kg·m^−3 > > density of > granite 2.75 g/cm^3 > density of > basalt 3.0 g/cm^3 > > Norm is correct. > > By the way Norm, the technology for extended diving time uses > the divers breath circulated through a CO2 scrubber and the > cleansed air, now about 16% oxygen, still enough to breathe, is > recirculated to the diver with a little bit of make up air from > the high-pressure cylinder to keep the pressure right. > There is enough oxygen remaining in an exhaled breath to support > life, hence mouth-to-mouth resucitation works. CO2 is the > main drive for inhaling and exhaling air. When one > hyperventilates, the normal CO2 in the blood is blown off, and > one can hold one's breath long enough to pass out before the > urge to breathe reasserts itself.
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