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Comment Kitty litter (Score 2) 20

Kitty litter is not such an odd choice as the article makes it out to be. The mineral variety is typically made out of sodium bentonite. This is well known for its ability to absorb more than its own weight in water, which also causes it to swell and therefore seal cracks, enhanced by its self-sticking capability. Kitty litter has a well-defined grain size and would be fine to use so long as one didn't switch brands. Wikipedia even lists a method for determining whether kitty litter has bentonite or not.

Comment Re:Some interesting information on that topic (Score 1) 166

Incidentally, I've read (although I can't remember where, but I'll have to put the effort into finding it sometime) that if you use ice core proxy data for the last 150 years, this spike is completely gone. Meaning, of course, these kind of "unprecedented, rapid" fluctuations could have been happening the entire time, and we'd never know, because we don't have anything other than low resolution proxy data for that time period.

That's a great argument style - blatantly lie and claim you'll look up the source of the lie later. Oh look, a graph with proxy data extending into the most recent 150 years, and showing a spike. https://www.ipcc.ch/publicatio...

Comment Re:Sure. (Score 2) 343

No, you won't reduce the weight. The flapping wings will decrease the pressure above them and increase the pressure below them. These pressure differences, when integrated over the surface area of the enclosed air space and averaged over the entire time the pigeon is flying, will exactly equal the weight of the pigeon.

Comment Re:Worse than the space station? No. (Score 1) 684

"And once there, water and soil could be extracted"

Don't confuse what's on the surface of Mars with soil. Soil has a huge organic content that helps it hold on to water and that acts as a pH buffer, amongst other things. The stuff on Mars is just dirt, and toxic dirt at that, contaminated with perchlorates and other salts. Once that stuff is washed out, you are still stuck with dirt. Then again, I suppose you'll have a lot of human poo to mix in, so there's your organic content.

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