/sci/ - Science & Math

(PS: I realize that it's not even remotely feasible, I'm just curious as to what sort of energy it would require to sustain one).

We'd need a huge ass magnet.

superconducting cables around the equator
not infeasible especially if you want to terraform

But how would the magnet work?

>>5913655
>>5913657
>>5913662
Or another bombardment period - heat up the silica surrounding the core and restore the natural magnetic field. All it would take is a few well-chorepgraphed nuclear strikes at the border of the mantle and outer-core. After a few hundred years of an established magnetic field, the atmosphere should begin to return due to retained heat melting the dry-ice caps and releasing the frozen CO2.

>>5913662
>superconducting cables around the equator

What will this achieve?

>>5913671
>All it would take is a few well-chorepgraphed nuclear strikes at the border of the mantle and outer-core

You have a flawed concept of large bodies.

>>5913655
>You have a flawed concept of large bodies.

No, I have plenty of experience with your mom.

>>5914189
>You have a flawed concept of large bodies.

No, I have plenty of experience with your mom.

>>5914185
Mars will have a magnetic field. In addition, due to dust storms ferromagnetic soil particles will accumulate around the martian equator.

Perhaps we can call it the 'rust belt'

>>5913671
>nuclear strikes

>>5914381

>>5914399
I don't think that plan is feasible, there would be too much infrastructure to build and maintain. We could use maths to figure out how much material you would need, however.

>>5914381

isn't there an asteroid belt right past mars? lets just smash a bunch of those fuckers into the surface and see what happens.

>>5914423
>see what happens
We miss... and send them right to earth.

>>5913655
I can think of three ways each fairly outlandish.
#1. Bombard to planet till it is liquified then wait for things to cool down. (nukes or large asteroids or something else)
#2. Drill down and nuke the core till it melts and some how impart spin to it
#3. Make a massive solar pipe to shine concentrated solar energy into the core to melt it. While this is less feasible I like it because it can keep pumping energy into the core so it will not cool down, basically making the cores magnetic field solar powered for as long as the sun keeps it viable.

>>5914434
Funny thing is that I think creating a fuckhuge artificial magnetic field is far more viable than kickstarting mars.

>>5914399
Do you know how weak the magnetic attraction of rust is compared to iron?

>>5914442
Yes, but I see it as worth the investment as one is active and the other is passive. When it comes to maintaining active systems we have a terrible track record. I could see some politicians cutting funding to it leading to it to slowly fall apart till it ends up going down years later and we panic and argue about how to fix it till we die.

>>5914442
>>5914461

OP here, that's the sort of thing I was initially thinking about.

Politics/cost aside, what would be needed to generate a planetary-sized magnetic field comparable in strength to Earth's?

>>5914463
5 watts

>>5914463
If you really what to terraform someplace nice look to Venus. Although it is somewhat more difficult to terraform it already has many other things which makes it very better overall depending on how you measure things. In fact if you look back into history Venus there is lots of data about how to terraform it.

The best idea I saw was to make high altitude balloon platforms that use solar power (maybe even leech off that high magnetic field) to scrub the carbon for the air compress it into graphite then launch it out a rail gun to help change the planets rotation speed to what we want while creating a high oxygen ratio in the local atmosphere and reducing the greenhouse levels cooling it to a more liveable level. The nice thing is each of these platforms would be relatively cheap so we could keep adding more one by one so there is less of a financial pressure as it can be distributed over a longer time frame.
We could get more bang for our buck if we aim those graphite blocks to impact on mars to heat things up.

>>5914452
Well, we're talking a superconducting magnet strong enough to give Mars a magnetic field, even weakly attracted materials will eventually accumulate.

Rust is also not a well defined material that include ferromagnetic iron oxides.

>>5913655

mercury + magnetohydrodynamics

>>5914496
I thought Venus didn't have a magnetic field because of it's slow rotation.

>>5914496

somebody's been watching too much anime

>>5914546
Yes, sorry I was doing this from memory and got it mixed up. It has a very slow rotation with a molten core. By ejecting stuff from the planet (in this case carbon) at high speeds we increase the rotation speed which creates a speed difference in the core which makes a magnetic field. This does require a mind boggling amount of energy, but it can be gathered over long time frames with solar cells making it a cheap waiting game.
>>5914548
Yes I watch a lot of anime, but none of the ones I can think of involved Venus. How does this relate? The few that mention planets other then Earth cover Mars, Pluto, Mercury, Jupiter, and Saturn but not the other ones.
I try to make a clear line between real physics, plausible physics, far-out physics and fiction physics.
One example of fiction physics is in one anime Mars is where they have a teleporter device that works by saving a copy of reality then destroying everything except you then pasting it back with a slightly different coordinate set so you can teleport where you want without having to move, what is more convent is that you do not have to be on mars to active it. I was a little disappointed by how no one freaked out when they learned how it worked and then start using it even more for the smallest of things.

>>5914596
>One example of fiction physics is in one anime Mars is where they have a teleporter device that works by saving a copy of reality then destroying everything except you then pasting it back with a slightly different coordinate set so you can teleport where you want without having to move

pretty sure you are thinking of Old Mans War

>>5914596

cowboy bebop?

waltz for venus

>>5914596
I remember something about that in the mars trilogy. They embedded magnetic rails in the crust and "Spun" the planet faster to get a better Day/night cycle and magnetic field.

What would be the taste of a magnetic field in mars?

>>5914634
salty milk and coins.

Why not build the settlements underground,and use the soil as a radiation shield?

It will be cheaper,and far more practical than building a massive magnetic field

There are things such as atomic tunnel borers,which melt the walls of tunnels into glass.

>>5913655
u make shielded domes or u put satellites with superconducting magnets that make small magnetic bulbs that add up with the other satellites to form a magnetic network

>>5914596
>>5914619 never heard of it, now I have to find it
>>5914626 ?? needs details.
Sorry I did not say what anime it was for spoiler reasons, but the anime I was talking about was
spoiler spoiler spoiler spoiler spoiler
Martian Successor Nadesico
spoiler spoiler spoiler spoiler spoiler end

How do I black it out to hide spoilers? Not that it really makes it less enjoyable to watch.

>>5914622
I suppose that I am wrong as I have seen all of Cowboy Bebop, though it has been so long I don't remember it well, but I can assure you it or any anime had nothing to do with this until >>5914548 mentioned it.

>>5914678
Not that guy, but in Old Man's War the stardrive works more like sending you to another timeline.

Then another you from another timeline might arrive where you were sent in the original timeline, or might not.

The characters tend to not wax rhetoric over whether that means the people sent somewhere are dead or whether their timeline just didn't receive a new copy to replace the one sent to another timeline.

1/x^2

Good luck with that magnetic field.