Re: cheap lunar gear & base (spin-off of superhero flight)

Crown-Horned Snorkack <chornedsnorkack@[EMAIL PROTECTED]
> wrote:
>> CO2 is harder. But easily handled by bubbling air thru a calcium
>> hydroxide solution.
>>
> Still bad. Because then you will run out of oxygen. Breathing centre
> senses excess carbon dioxide, not lack of oxygen.

Your breathing is driven by the level of CO2 *in your blood*, which will 
still become appreciable even when breathing air which has none. As should

be fairly easy to see, otherwise anyone breathing pure oxygen would 
suffocate.

You still have the problem of detecting when O2 levels become too low, but

that's a separate problem. Starting from a reasonable pressure, you can 
lose a lot more O2 than you can gain in CO2 before it becomes dangerous, 
and if O2 is the only significant input into the system then you can 
regulate O2 levels simply by monitoring air pressure.

-- 
Michael Ash
Rogue Amoeba Software