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Bedlam
crazyewok
Doubtfull.
As long as they have a supply of water they can create oxygen. You dont have to keep shiping oxygen out.
If you can guarantee a supply of water.
And if you have enough panel area. And if you get enough sun, year round.
And if you don't have any breakdowns.
Or fires.
Thus my comment, asphyxiation is the most likely end. I mean, if they land on the Big Rock Candy Mountain, they can grow food, too.
crazyewok
I find it common amongst the badly educated or those on the lower scale of intelligence.
Blue Shift
Yep. Ah'm just a dumb cluck. Don't know what ah'm talkin about. Fraid'a my own shadow.
crazyewok
reply to post by JadeStar
I knew they had found water, never knew it was to that extent. I really have fallen behind the last few years
Dark seasonal streaks on slopes near the Martian equator may be a sign of flowing salt water on Mars, liquid runoff that melts and evaporates during the planet's warmer months, scientists say.
Mock Mars Mission: Eating On The Red Planet
by Elizabeth Howell, SPACE.com Contributor | January 08, 2014 04:42pm ET
Agriculture at Utah Mars Desert Research Station
One task of crews at Utah's Mars Desert Research Station is to plant and maintain crops for other crews to eat. The Mars Society believes this is a task that crews on the Red Planet would do as well.
HANKSVILLE, UTAH – How do you whip up boxed macaroni and cheese without margarine or butter? That was a problem I faced early in my rotation at Utah's Mars Desert Research Station (MDRS) when another crewmember and I were put on food duty.
Since the role of MDRS is to simulate Mars exploration and make us feel like astronauts, we're encouraged to solve problems ourselves. Our commander, who has been here twice already, quietly worked on other tasks as I combed through cupboards trying to find a substitute.
It's possible there was shelf-stable butter there, but under limited time our solution was to add tuna to the mix. Other crewmates pronounced the concoction as delicious. Our decision to use tinned corn beef at lunch, however, did not go so well. There's a lot to learn as we keep ourselves fed at this facility, which is run by the nonprofit Mars Society.
Blue Shift
Yep. Ah'm just a dumb cluck. Don't know what ah'm talkin about. Fraid'a my own shadow.
schuyler
Blue Shift
Yep. Ah'm just a dumb cluck. Don't know what ah'm talkin about. Fraid'a my own shadow.
Well, you got two out of three correct. That's a pretty good percentage. First of all, you haven't proven your case. Your reasons for not going are extremely weak. If you seriously think that every single point you have brought up has somehow been missed by those who are promoting this, then you are calling THEM dumb clucks. The onus is upon you to prove your issues are actually serious ones, and you have not done that. Every single objection you have brought up has been anticipated, thought about, and will be solved by the time they leave.
The second issue you got right is that you are smart enough to assess yourself as not being of a pioneering spirit. You don't have to be, of course. We need people to stay home and till the fields. Regrettably, not everyone gets to go. Those who want to stay home will always be able to do so. If you don't want to cross the river because you might drown of you attempt it, by all means stay at home. It would be a mistake for anyone to force you to come along. You would be one helluva roomie, a constant Eeyore complaining about every bump in the road.
The real issue, though, is why you feel compelled to criticize those people who want to go on such an enterprising endeavor. Why, on Earth, would you want to do that? That turns you from a silent observer into an hindrance to be overcome. Given that you don't have a dog in this fight, why are you an obstructionist? Why can't you simply wave bon voyage, or even boycott the launch by sleeping in, and live the rest of your earth-bound life with a snide sneer of superiority knowing you didn't risk YOUR life for such a voyage. But them, you were never compelled to anyway.
JadeStar
Can. Water has even been seen in equatorial regions where it was once thought was totally dry. 20 percent of Martian Soil is water.
Want water? Dig. If you heat up a cubic foot of Mars soil, you can harvest around two pints (one liter) of water. We know that now thanks to the Curiosity rover.
Additionally, there may be even bigger reserves of water deeper down so if they bring along a drill they might just tap into a well.
Assuming they only plan on solar power they'd be fine, we know very well the solar flux for different times of the year at different places on Mars. That's part of what the previous missions were sent there to find. They will have planned for this.
Beyond solar, they could just as well bring along a small nuclear power plant (google SNAP generator).
They'll have tools to fix them. They'll also have redundant systems for key things like life support.
I guess you don't know as much as someone like Robert Zubrin who has studied Mars for years and who is now part of the Mars One team.
Buying one of his books wouldn't be the worse thing in the world to bring you up to speed on the realities of what living on Mars would be like.
crazyewok
Exactly.
I hear people say the Radiation is too high without giving any figures, well in counter people have said exactly how much and how at worst it will give only a 5% risk of cancer. Yet they still carry on saying the same crap without any concrete counter argument.
Bedlam
Sure...but you didn't say how MUCH you had to heat it, eh? It's not free water. It's bound to minerals. 800C ought to do it. What's the specific heat of Martian soil, I wonder. There's probably quite a bit of energy involved in heating a cubic foot of dirt to a dull red glow.
"may be" also involves the probability of "whoops".
Maybe they could, it would stretch their lives out a bit. If it's full of perchlorates, antimony or arsenic it'll need filtering or distillation,
they really ought to take something along in case they happen to find water.
I recall several missions where the solar panels weren't quite up to par. It's not the sort of thing you can fix if the panel itself breaks
Apollo 13.
I'm not emotionally committed to the issue, either.
I'm recalling Biosphere 2, it was a nice practice run encrusted with PhD's that swore they had the last decimal place calculated. It failed badly. They were able to open the windows.
JadeStar
One doesn't need to heat it to 800 c to extract water. The temperature at which water ice melts on Mars is not that much different from. In fact due to the lower atmospheric pressure its been shown to sublimate quite easily.
Just go through ArXiv and type "Mars Water" in the search.
I suggest you preruse those links I posted for crazyewok.
Samples from the Rocknest aeolian deposit were heated to ~835°C under helium flow and evolved gases analyzed by Curiosity’s Sample Analysis at Mars instrument suite. H2O, SO2, CO2, and O2 were the major gases released. Water abundance (1.5 to 3 weight percent) and release temperature suggest that H2O is bound within an amorphous component of the sample
No, it's going to characterize the site, probably take along some ground penetrating radar and gamma ray spectrometer to reduce the likelihood of whoops.
It's like the critics of this mission assume everyone involved is stupid or they haven't thought it out well. I've taken a look at the plan and like I said, it is fairly well thought out technically.
Where did I mention RTGs?
I am not talking about RTGs I am talking about a small nuclear reactor like this. SNAP reactors were developed for the space program for just this type of scenario, long duration spaceflight and colonies.
Survived. As did the people in the Mir fire (which was probably far more dangerous than Apollo 13 but you know, no big Hollywood movie was made about it dramatizing it.....)
Nor am I to be honest. I just like to inform the misinformed. Denying ignorance and all of that....
Equating Mars One to Biosphere 2 is like equating an actual space mission to space camp
Bedlam
Actually, I did. The "2 pints per cubic foot" number is for liberating bound water from minerals. 835C was the number given.
Samples from the Rocknest aeolian deposit were heated to ~835°C under helium flow and evolved gases analyzed by Curiosity’s Sample Analysis at Mars instrument suite. H2O, SO2, CO2, and O2 were the major gases released. Water abundance (1.5 to 3 weight percent) and release temperature suggest that H2O is bound within an amorphous component of the sample
It doesn't say "there's 2% of water in the form of ice". That little phrase "release temperature" means it's stuck to some sort of mineral, the way water ends up bound to gypsum, or they'd have said that the release temperature indicated it was in the form of water ice.
It's a plan with very little in the way of on-site testability before you pull the trigger. It's got lots of ways to screw up.
All the SNAPs except 2, 8 and 10 WERE RTGs. And how much power did SNAP-10 put out? 500W. That's half a kW. That's not a giant step. Not that you couldn't design something that would get the job done. Something like a SNAP-8 or SER would work, but you've got an entire design cycle doing that. And you've got to get past the greenies who will crap their pants at the thought of a uranium hydride reactor going into orbit.
And it was in a system they were sure was ok. It wasn't, though. Every problem they HAVE they think doesn't exist until it happens. It was an unrepairable catastrophic failure. If that happens on Mars, you're toast.
I'm not misinformed at all. I just don't agree with you it's going to be a cakewalk that's all planned out.
It was a problem people thought they had solved that actually applies here. Your Mars campers are going to have to grow food and have clean air and water. Big complex designs that are deployed without a lot of incremental systems testing tend to have surprising errors. It's not the sort of thing you'll just slap together with a few mouse clicks.
Look, I'm all for space travel. Trust me. I just don't agree that it's the sort of thing you can hum a couple of eggheads at and instantly have all the bugs worked out, and it becomes a walk in the park. The more complicated the endeavor, the more ways for it to screw up in ways you didn't anticipate.edit on 10-1-2014 by Bedlam because: (no reason given)