/sci/ - Science & Math

Arnold just needs to start the reactor.

Unfortunately, you'd need to reheat the interior of Mars to the point where its core became molten again, thus creating the dynamo effects that produces magnetic fields around planets. If we just plopped an atmosphere on Mars right now, as it is, yes, the solar wind would gradually cause it to disappear. Terraforming ain't easy. You'd need a ridiculous amount of energy to essentially melt the interior of a whole planet.

>>5083625

>>5083629
That's a shame.

>>5083629
Enjoy your pony ban ;-)

It's not. It's just a delusional dream of people who have no imaginings of the future outside of science fiction.

>>5083623
Doesnt Mars already have an admittedly thin atmosphere?

>>5083659
Despite posting pony, he gave an insightful answer. You're just being an irritable asshat.

>>5083675
Reported for samefagging and pony shit.

>>5083675
ponies are banned on all boards except /mlp/. i hope you read the rules next time :)

>>5083680
Not samefagging, if you don't believe me you can suck my sweaty neckbeard dick.
>>5083685
So are all reaction images, and no one said anything about this one: >>5083631

It's also against the rules to announce that you reported someone, yet no one said anything about >>5083659

Slob on my knob.

>>5083659
>>5083685
>using emoticons on 4chan

>>5083700
>posting infantile cartoons on /sci/
Looks like someone will be enjoying a ban soon ;)
>>5083699
>It's also against the rules to announce that you reported someone, yet no one said anything about
That post never announced a report. Are you retarded?

Hey...

Would it be possible, maybe, to simply dig an absurdly-deep mohole SO DEEP that the pressure is actually livable at the bottom of it?

>>5083709
There's absolutely no rule against that...

>>5083709
>HURR DUR ENJOY UR BAN XD
That's blatantly announcing a report and you're autistic if you think it's subtle in the slightest.
Gtfo and keep your asinine emoticon bullshit on your childish girly ass text messages.

>>5083708
Wut. Elaborate.

>>5083717
New here huh? Welcome, but I'm afraid you'll have to enjoy a ban soon :(
>>5083718
What? No report was announced or even made. People who post ponies are banned. That post was just telling him he'd soon have to enjoy a ban. Is this your first day here?

Good lord, even /sci/ is filled with this ridiculousness...

>>5083708
You have my attention, go on...

Really guys? even /b/ doesn't get so mad when ponies arise.

I thought sci was better than this

>>5083723
Oh I'm sorry. Please, enlighten me. Show me this rule that you're referring to. Give me a direct quote from the 4chan rules page. Be as specific as possible so that I never commit this grave offense ever again.

>>5083723
wow u r so smart ;) <3 XD
>>5083708
What is this even

>>5083717
>>5083718
Lurk before posting retards.

>>5083623
The scale of the depletion is at thousand of years.
For all purposes, once we terraformed it, it's a second Terra.
Just need some maintenance.

>>5083732
Thanks :) I'm glad you learned something new today! Maybe you aren't a complete retard :p

>>5083734
How fucking new are you?

>>5083734
No board on 4chan is better than "this". Ever.

>>5083668
Yes of mainly Carbon Dioxide. Its very thin though, the average atmospheric pressure is about 500 Pascals I believe.

Compared to Earth's (Sea level) pressure of 101325 Pascals.
Even at the top of Everest the pressure 33 700 Pascals (~1/3 of the Sea Level Pressure)

>>5083751
Oh, so what >>5083708 is trying to say is, "what if we dig deep enough to a point where the atmospheric pressure is heavier and breathable?"

I don't think it works that way.

Biodomes.

>>5083744
You haven't even bothered to answer OP's question. It's obvious because none of the answers so far have emoticons in them. Please get out of the thread.

>>5083763
Sure you could try, but you'd be breathing in 95% Carbon Dioxide and be living in a hole.

I bet even if you go to the lowest point on Mars (Hellas Planitia), which ~7km below "Surface level" you probably would still find a pressure under 1000 Pa,

>>5083732
>>5083728
Well, just like on Earth, atmospheric pressure on Mars increases with decreasing altitude. With as highly-varied as the terrain on Mars is, I already know that the peak of Olympus Mons is significantly more rarified than the lowest valleys (based on what I've learned trying to fly airplanes on Mars in X-plane), but I do not have exact figures.

Gimme a few minutes, and I'll look up the pressure scale-height of Mars' atmosphere, and then I should be able to estimate just how deep this hole would have to be to achieve equivalent pressure to Earth's atmosphere.

>>5083780
I stand corrected I just looked it up and the Atmospheric Pressure at the bottom is 1,155Pa, still very low.

>>5083780
>Sure you could try, but you'd be breathing in 95% Carbon Dioxide and be living in a hole.
Wearing an oxygen mask is a lot easier than wearing a full pressure suit.

Anyways, based on my figures, by drilling 55 km down from the bottom of Hellas Planitia, you could reach an altitude where the ambient pressure was 6.36 PSI - plenty to survive with just an oxygen mask. At about 70 km down, you would be right around normal Earth atmospheric pressure, and could breathe even an Earth-like gas mix with 20% oxygen.

what if we like blew up a nuke at the middle of mars

or used one of those dr. device things from ender's game, except it doesn't completely destroy the planet

>>5083852
>what if we like blew up a nuke at the middle of mars
How do you suggest we get it there?

Yes the atmosphere would be stripped away by solar wind.

But it would take hundreds of thousands or millions of years.

>>5083905
Let's drill a borehole!

Which would be easier to terraform: Mars or Venus?

easy answer:

>we will find a way to travel to other star systems, find a earthlike planet and inhabit that in less time than it would take to figure out how to terraform mars, and terraform it

>>5083916
Depends on what degree of terraforming we're talking about.

>>5083629
>>5083700
>tfw infantile cartoons deleted

Yes, it takes thousands of years for solar wind to have a noticeable effect. If we're able to make an atmosphere then there is nothing stopping us from maintaining an atmosphere

>Dismiss solar wind depletion due to the long timescale it works over
>Ignore that terraforming itself will likely take place over similarly long timescales
Stay delusional, /sci/.

>>5083997
It wouldnt take hundreds of thousands of years to terraform mars

>>5083973
>>implying you yourself aren't posting infantile cartoons


>>implying we couldn't just wrap Mars in a superconducting cable to give it a magnetic field.

>>5083629
Reposting what this guy said because it was a good bit of info pertaining to the thread.

>Unfortunately, you'd need to reheat the interior of Mars to the point where its core became molten again, thus creating the dynamo effects that produces magnetic fields around planets. If we just plopped an atmosphere on Mars right now, as it is, yes, the solar wind would gradually cause it to disappear. Terraforming ain't easy. You'd need a ridiculous amount of energy to essentially melt the interior of a whole planet.

autists.

>remembering when i got warned for bloxing on /r9k

half of the posts were bloxed. and my reply was a paragraph but the robot was having a seizure.

>>5083997

Do you know a convenient way to calculate the Martian rate of atmospheric depletion due to solar wind? If it does take only a hundred thousand years to deplete the Martian atmosphere, then we are in somewhat of a pickle because we would need to pump over three million kilograms of nitrogen (i.e. 300x100x100 meters at terrestrial pressures) to Mars every second in order to break even.

>>5084007
>you'd need to reheat the interior of Mars to the point where its core became molten again
Or you could, you know...
Regenerate atmosphere at an equal rate that it's blown away while you figure out a non-core-melting method for establishing a magnetic field. Such as building a coil around the equator and using the whole planet as an electromagnet.

Melting the core is the dumbest fucking idea ever.

>>5083664
[citation needed]

Oh ye of little rationality.

>>5084007
>You'd need a ridiculous amount of energy to essentially melt the interior of a whole planet.

Make a moon. It will become molten on it's own due to gravity. Just take Phobos and Demos and a mess of Kuiper belt objects bring them together at the right orbit and the tugging mass of the moon will cause the core to go molten. It'll take a while but we're talking about a project that is going to span generations in the first place.

Well I always figured that we would never terraform Mars but strip mine it to a husk over time. We can use the raw materials from asteroids for the same reason though, but long term colonisation of space is more likely to be in the form of orbital colonies, likely around Earth for the sake of communications.

See Gundam for this model.

>>5083623
why bother just bioform man, much easier

Im no geologist but wouldnt it be feasable to drill to the core and pack in billions of tonnes of thermite and set it off to melt the core?

>>5084262
Pretty sure a moon would be torn apart before it melted the interior of the planet.

>>5084313

If it didnt work it would soften it enough to allow nuclear bombs to melt it.

>>5084326

>yeeeehaaw let's nuke the basterrrd!

>>5084320
And what makes you say that? It could be latticed together and serve double duty as a space station during the terraforming process.

>>5084350

Nuclear weapons are the the most effective weapon we have against planets. Typical yuropoor unable to come up with a better

Mars lost its atmosphere to the INTENSE early solar winds. Anny new atmosphere would have no problem staying on the planet and would last for billions of years unmaintained. Atmospheric sputter is not a issue.

People who makes these stupid threads should be banned.

>>5084411
Fucking idiot. The core of mars is not solid. You would not be able to drill into it. Also IF the core was solid the explosion would have to be within the multiple teraton rang. Stop watching bad movies and popsci bullshit.

>>5084443
>"The core, like Earth’s, has a major iron component. That is where the similarities stop. The core here on Earth is molten and in constant motion. The inner core rotates in a different direction than the outer core and the interaction of the two creates our magnetic field, which protects the surface from solar radiation. The Martian core is solid and does not move."

http://www.universetoday.com/14702/what-is-mars-made-of/

Remembr that film 'the core' where they detonated several nuclear warheads to create a shockwave and restart earths core?

Why dont we just do that on mars then terraform it?

>>5084506
>remember that film
>that film
>film

captcha: Galileo

>>5084438

>gives a interesting/useful answer
>then calls OP stupid for asking the question

I don't even... Jimmie status: rustled

Why make a full scale planetary atmosphere? Much simpler to make contained, local atmosphere.

>>5084594
That's human nature for you.

People are assholes and jerks and ignoramuses even when they know something.

If you don't automatically know everything and then some more than some of the arrogant ivory tower types here, you're an idiot. At least, that's how they see it.

>>5084438
Not considered an infantile cartoon?

wut

>>5084754
We get this thread EVERY DAY.

>>5083743
a thousand years or thousands of years? BIG difference...

Hey....
Hey guys...

What if...
Listen to this...

What if we sent a nuke to the core of mars to kickstart the core again?

>>5084836
See what Hollywood did to education

>>5084836
http://terraform-mars.kickstarter.com

>>5083623
The gravity on Mars is so low, that it wouldn't be able to hold oxygen to it's surface.

>>5084946
that link leads to nothing

>>5084949
Astute. Good.

>>5084956
i see what you did there

>>5084948
Wrong. Try again.

>>5085026
it seems no one can agree on any of this. maybe we should leave it to the best and brightest scientists to figure it out.

>>5084482
http://www.geotimes.org/may03/NN_mars.html

>" “One of the possible explanations suggested decades ago for that absence was that Mars has a solid core; if you have a solid core, you cannot generate a magnetic field because it’s not enough to have an electrical conductor — you have to have a dynamo process,” Stevenson says.

>Yoder and others’ research rules out that possibility, he says, but further complicates the puzzle as to why Mars has no magnetic field."