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Pellisworth posted:Ah ok, yeah that makes a lot more sense, thanks! Now the science nerd gears in my head are spinning, something like that might work pretty well. Especially if you found a CA from a thermophilic organism, CaCO3 is more insoluble at higher temps. Still doesn't solve your problem of getting from bicarb to carbonate, though. You might look into the biochemistry of shell-forming marine critters. You wouldn't necessarily have to maintain reaction conditions at low enough pH that all your bicarb converts to carbonate. In fact that might be a bad idea, low pH is no good for calcite formation. You just want your rate of calcite precipitation to equal your rate of CO2 conversion to bicarb. How you do that, don't ask me Jesus. Now I actually know how it feels to be a moron, but I feel slightly better listening to the two of you hash this out.
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Dec 7, 2011 07:28
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I don't usually think much about practical applications of these things :P
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Death Himself posted:By the time we really fully understood what we were doing to the planet and how far we already screwed up it was to the point where we needed to slash 80% of our global industry in order to start dealing with it. It's not even that sinister....human nature being what it is, there is no way whatsoever that you would ever get global cooperation. Some government, somewhere, would hold out for the technological advantage. It's no less unrealistic to believe that every country would dial back it's technological advantages during a time of peace than it is to believe that the same country would do so during a time of, say, global war. It's a global version of the monkey trap...and, at the end of the day, we're still monkeys. I cant even imagine what the actual "WAKE THE gently caress UP" event would be that would finally clear the air on this, but it wouldn't be soon enough to change. I hope I'm wrong and steeped in ignorance, but I fear that we've passed the tipping point.
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Dec 8, 2011 04:57
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The biggest barrier to space/Moon colonization is the lack of gravity and the effect on the human body, specifically calcium loss. Humans simply cannot survive in a low-gravity environment for very long and still return to a gravity environment. If and when we ever develop an artificial gravity (or stick to centrifugal force to recreate 1G), we can revisit long-term space exploration. As it stands now, we can't even send a return manned mission to Mars.
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Dec 8, 2011 05:12
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