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/sci/ - Science & Math

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9924509 No.9924509 [Reply] [Original] [archived.moe]

Why are people so dumb when it comes to colonizing Mars? They all seem to forget that the magnetic filed is weak as fuck, meaning you can't have a working atmosphere on Mars. Unless of course you find the way to "restart" the planets core or create artificial magnetic field somehow.

>> No.9924519

It's the eternally powerful lemernaty, man, they're milking the sheeple with the pentagon.

>> No.9924556

People like to dream about things like dysonspheres and Neil cylinders so we dont have to face the cruel future where wars are fought for water

>> No.9924561


atmosphere loss occurs on geological timescales, it is not an issue on human timescales

that said I doubt Mars will ever be terraformed, just build a colony underground and be done with it

>> No.9924595

if we can create good radiation sheilding we wont have to worry about that

>> No.9924759

Mars has local magnetic fields, and atmospheric losses take millennia. It's possible that we could develop a means of blunting the incoming solar wind before that would become a problem.

>> No.9924771
File: 50 KB, 634x469, 3DE37EFF00000578-4276210-image-m-10_1488483170493.jpg [View same] [iqdb] [saucenao] [google] [report]

There are proposals to build a magnetic shield for Mars, that could be stuck in the Martian L1 orbit. Would be quite an undertaking, but seems a lot more feasible than many other teraforming ideas.

>> No.9924777

I've been wondering this recently with all the Mars talk as well. It doesn't matter what we introduce to the atmosphere of Mars; it'll never be protected enough to have a greenhouse effect, and even if it did it would take tens of millions of years to have any effect.

I honestly don't know why people bother with this nonsense. It's pure fiction. The best thing we could use Mars for is mining, given it was cost efficient and there was resources there worth harvesting.

>> No.9924799

I remember reading a NASA(?) paper about how running few electrified wires around mars powered only by few nuclear plants could create a sufficient magnetic field to hold atmosphere good enough.

>> No.9924806
File: 92 KB, 1346x565, How to terraform Mars.png [View same] [iqdb] [saucenao] [google] [report]

Jello Babies BTFO.

>> No.9924810

Then someone blows it up thinking it is the enemy's spy satellite, because after 3 Mars world wars, no one really knows what it is anymore and all of humanity on Mas is destroyed as a result.

>> No.9924814

You missed the part about it taking at least thousands of years to strip the atmosphere off of a planet, it's a really slow process.

>> No.9924819 [DELETED] 

Not sure how the magnetic field is supposed to impact how much atmosphere you have. Were you trying to point out that the lack of a magnetic field means you are vulnerable to solar radiation?

>> No.9924822 [DELETED] 

Disregard, I was not thinking clearly, it is very early in the morning here.

>> No.9924837

Could you dig a huge hole and use a massive space laser to heat the core up again?

>> No.9925745

Yeah I mean, you only need about 40 micro teslas

>> No.9925814

Colonizing Mars isn't terraforming Mars.
We all recognize that colonists will be living in a structure so they can breath and be protected from radiation.

>> No.9925824

I don't see how that changes anything that was said.

>> No.9925992

Why don't we just make cloud cities on Venus? Who /HAVOC/ here?

>> No.9925998


>It has to be either Venus or Mars

Why not both? I imagine that we will have at least one station (with populations of somewhere between 1-10 people) on each and every terrestrial planet of the solar system by the end of the 21st century.

>> No.9926023

The idea of floating cities or even small colonies on Venus is ridiculously impractical.
Furthermore, what would their purpose be? You might as well just build a space station.

>> No.9926028
File: 23 KB, 1024x768, Titan1.jpg [View same] [iqdb] [saucenao] [google] [report]

There's no point,

It's much easier to fix a fucked up Earth and create means to deter asteroids and other world wide catastrophes.

Fuck Mars - What we need to do is to create a vacation colony in TITAN so we can strap wings to our arms and fly around.

Imagine Titan Olympics with all sorts of flying sports.

>> No.9926517

Well I don't care too much about sports so I would probably just go back to doing math after I got there. Except I would be doing math flying around with wings strapped to my arms.

>> No.9926548

A space station has no gravity

>> No.9926594
File: 56 KB, 625x320, 52.jpg [View same] [iqdb] [saucenao] [google] [report]

The lack of magnetosphere isn't a huge deal... Foot of dirt, inches of steel, or a foot of water, and your rad problems are over, and if you are ambitious enough to try to make an open atmosphere, it likely evaporates slower than whatever method you're using to generate it, and yes, there's always the Lagrange point sat idea.

~40% gravity is a bit more of a problem, and considerably harder to mitigate. It doesn't have the same long term health problems caused by microgravity, but birthing colonists might become a problem. However, it might actually be advantageous, in some ways.

Small mammals can conceive viable young in even micro gravity environs, with the only drawback being a lack of balance when returned to Earth, which they quickly acquire upon being exposed to normal gravity. However, humans, with their large bones, undergo constant micro-fractures during development, that you'd get ~60% less of on Mars. "Jello babies" is a bit of a meme, but young Martian born humans would have very brittle bones and be very weak. While their lungs shouldn't collapse on Earth, they likely couldn't walk and being in 1G for prolonged periods would be a huge health risk.

On the other hand, the caloric intake for muscle mass would be considerably lower on Mars, meaning you need less food to keep your Martian born colonists alive, and more of that excess caloric may go to brain development, so while your Martians would be weaker than your humans, they may be both more efficient, and possibly more intelligent, over generations.

Granted, by the time you have colonists being born on Mars, you probably have considerable genetic engineering and medical skills that may help mitigate this, or play on its strong points.

>> No.9926864
File: 15 KB, 445x263, mars-gravity-wheel-centrifugal-force.jpg [View same] [iqdb] [saucenao] [google] [report]

Building centrifuge habitats on Mars, and having pregnant women & children spend as much time as possible in them would be a fairly easy fix for the gravity issue. It is something we can do with existing tech easily enough, and would be a good interim solution if/until we can genetically engineer people for lower gravity.

>> No.9926911

Cringing a bit because of the resultant vector in that pic. Apparently they created an anti gravity wheel.

But yeah, this is something to consider.

>> No.9926917

It does if you spin it.

>> No.9926918


>There's no point

Is there any point in having a station populated by over a thousand people on Antarctica? Yes there is. Manned research. Scientists always find something to research. Mars provides opportunities for manned research. Getting to Mars may be more difficult than getting to Antarctica, but that won’t stop scientists from getting there this century.

>> No.9926925
File: 43 KB, 500x375, 5UkMOmf_CuY4MmLs4tgNptpTvHum9rlU70LGUZlRj_4.jpg [View same] [iqdb] [saucenao] [google] [report]


>> No.9926953

I have serious doubts as to they are naty lemurs considering they conspire so well.

>> No.9926967

Its all memes. The radiation there is thousand times higher than it is here despite all the exploded plants and nukes.

>> No.9926997

What are you retarded? We’ve though of that

The astronauts are going to jump on mars until it starts spinning increasing the magnetic field

>> No.9927003

Sorry, I meant to say there's no point terraforming Mars.

What you said is valid and I agree with you.

>> No.9927043

Gravity isn't that much of a factor in utero as the child is kinda suspended in liquid.

Bigger problem is development as the child ages and doesn't get as many microfractures to strengthen the bones. It'd probably still be functional in Mars gravity, just, not too good on Earth.

>> No.9927052

Bigger problem is having all the eggs in one basket when there's 50,000 different things that can end a biosphere, many without warning, and we seem to discover a few new ones every decade, and occasionally, invent a new one.

That, and you're somewhat limited with the sort of societies you can develop on Earth with all those other potentially hostile ones nearby, or even those not so hostile that just absorb you through influence. Mankind is in rather desperate need for a new frontier capable of being exonerated from the old.

>> No.9927295

they will look like shit.

>> No.9927413


> It is something we can do with existing tech easily enough

Building a rotating habitat big enough for people to live on is not easy at all. Something like that would complicate Mars colonization by an order of magnitude.

>> No.9927504

Research the idea of placing a ~1T magnetic at the L1 point of Mars' orbit with respect to the sun.

They say that could exactly mimic a magnetosphere when it comes to deflecting cosmic radiation.

>> No.9927505

*magnet even

>> No.9928437

Do you think colonize means people landing and jumping out to set the first martian track and field records? You are retarded.

>> No.9928447

Why do we need to terraform it?

Live underground, live in domes, live in tunnels. Three is no need to terraform.

It's much better that we learn to live on other planets as they are, this way we can live anywhere. Maybe as technology improves we can start to terraform it, but I think the first colonies will have to be enclosed in some way.

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