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> If the volume of a liquid is 250 times that of a gas (at sea level I
> assume) then 300 bar tanks should not be possible because at 250 bar
> the gas will be compressed to a liquid form and thus no longer compressable.

I think his figures were for liquid oxygen and not air. Maybe this is the
difference?

I've always wondered how much energy is required to break up CO2 back into
C and O2. You'd then essentially be converting some other form of energy
directly to "human" energy. Your gas is then just a transfer medium. No
need for a tank! Does anyone have the numbers for this handy? Once we get
cold fusion working everyone could dive with a little reactor on their
back... until then we can just dive during lightning storms. ;-)

Devon

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