if what's going on in your lungs has no effect on tissues in the body then I completely misunderstand decompression theory.
Bubble formation is down to the difference between the ppN2 in your blood, vs the ambient pressure
Offgassing is about the difference between the ppN2 in your blood vs the ppN2 in yer lungs.
(Other inert gases are available)
So,switching to pure o2 at 6m does not affect the former, hence no additional risk of bubbles.
But switching to pure o2 at 6m dies affect the latter, increasing offgassing rates but with no additional risk of bubbling.
The physics of deco is about small volumes and what happens in them. Gas molecules rush about randomly but the mean flow is from high concentrations to lower concentrations.
We are talking about distances that are microscopic here.
What happens in your lungs causes flows and hence affects the tissue tensions over time, nothing more.
Bubble formation is about gas tensions and ambient pressure, nothing more.
Clasical theory is only interested in absolute pressure while bubble models factor in rate of change of absolute pressure.
Last edited by nigel hewitt; 08-02-2018 at 09:56 AM.
Kinetic Theory is all about molecules banging into one another, the more molecules the closer they are packed and the greater the force of collisions, whether they are in solution in a liquid (water) or in a gas in equilibrium, this rate of collisions explains ambient pressure it does not matter what the gas species is it is the change in rate of collisions (because at the bottom of the gravity well they are more closely packed) that causes an excess of pressure in solution when pressure is released and at a certain point (in biological systems dependent on a whole load of other variables) bubble formation occurs, depending on circumstances in a tissue bubble growth then occurs, and after a certain amount of bubble expansion DCI may present clinically.
Hope that helps it's the best I can do.
Evolution is great at solving problems. It's the methods that concern me.