Would it still occur if we were to change the atmosphere of Venus in order to live there? That's neat as well.

It’s actually more effective at preventing atmosphere from escaping. Intrinsic field causes polar wind as the particles just escape through that hole. Does not happen in an induced field.

The atmosphere blocks all that radiation…

“Why should I have to change my name??? She’s the one that sucks!”

oh yes for sure; more than it is now. But it’s already getting less than half the amount of radiation / solar winds force than Earth is. BUT this is is still a non issue; if you can increase mars atmosphere to 3x Earths atmosphere for the same pressure than the loss rate even if it’s 30x what Earth loses is going to be a non issue. You already creating trillions of times of atmosphere than what you’re losing. So after atmo creation you just exude some 1/trillionth of the amount of atmo you already just created. SO ANY useful amount of atmosphere creation makes the magnetic shield a non issue of the goal is humans breathing.

Earth loses 90 tones a year. So if Mars loses 900 tones it’s still going to be a non issue because Earths atmo is like 5.5 quadrillion tones. And if you want 1 bar on earth you’ll need 3x that. And you want to worry about a 100 tones a year after we just made 16.5 quadrillion tones?

Hell if Mars loses 8100 tones a year it’ll be a nonissue.

I think the actual mass of Mars may have something to do with the lack of a magnetosphere. The core of the Earth is very likely radioactive which would keep it nice and warm liquifying the inner layers of the planet. The liquidation plays into the creation of the magnetosphere. I also think that the Earth is massive enough to put additional heat and pressure on the inner layers of our planet.

Mars has some radioactive processes keeping the core warm but not liquifying the core. It's hot enough for volcanoes but not hot enough for plate tectonics.

My idea is that if we could increase the mass of Mars we might be able to put enough pressure on the core to liquify the inside of Mars. Maybe using an orbital ring to drop chunks of asteroids or comets onto the surface would work. Do this correctly and we could spend up the spin of the planet. This way it's day would more closely match Earth's.

Would that much atmosphere being packed onto small Mars possibly create an issue where exponentially more of it is lost at x rate?

That’s a great point and I should have included that as follows:

If you want similar to Earth levels of atmospheric pressure on mars you’ll need much more atmosphere than you have on Earth. In other words, you’ll need a lot more physical barrier between you and the radiation. AGAIN, if you can make the atmosphere you need the magnetosphere is a non issue.

Yeh and I mean even if you didn’t need to make one you could theoretically use a naturally occurring sphere to just make the planet a giant solar panel

Really cool idea

Well there is also the radiation. Theoretically Mars with a magnetosphere would be able to support walking around in a t-shirt and jeans. Provided you have sufficient atmospheric pressure and composition. Otherwise we would have to live underground or in shielded habitats. It's not just the atmospheric loss, though if you did jumpstart the dynamo you would make atmospheric deterioration a non-issue for the next 2 billion years of inhabitants. Yeah, that doesn't really matter when it still takes 200 mil to deplete without one, but if civilized society were to collapse it would still be inhabitable.

We might want to start by figuring out how to terraform earth, let’s start with the easy stuff!

The magnetosphere is a non issue. Mars loses atmosphere slower than Earth does currently. If you can replenish atmosphere to terraform mars at any useful rate why would you invent another system to hold in less atmosphere than you can already make?

I think it is half the opposite because all you would need for heating the core is a BIG nuke unless you did it electrically. It is however likely that it would take less energy to just top up the atmosphere than to move Ceres to guarantee the core would be functional.

Without doing the math, I'm pretty sure you could run an artificial magnetic field or just keep topping up the atmospheres for millions of years using less energy than it would take to move Ceres or melt Mars's core.

Saying a very grateful ciao from Rome , Italy. Is it made out of marble? ;)

I think that's honestly a giant leap that we may never accomplish. FLT may also be an impossibility.

If we ever reach this status we might as well evolve into a level 3 species and create our own artificial planet or travel to one that fits our needs. We are harnessing power of entire solar systems and near by suns, we wouldn’t need the protection of a magnetic field or planetary warmth anymore.

Venus wouldn't be quite that simple. Water vapor is a greenhouse gas. Any attempt to add water to Venus would cause it's temperature to go up, not down. You'd have to cool Venus down first, then add water.

Uv rays don't give a shit about the magnetosphere, they are blocked by oxygen molecules in the atmosphere. That's where the ozone layer comes from.

Lol, I say if your at this technological level just also use it as like a radiation funnel to power the tech. I mean magnetosphere’s grab ionized radiation and to my knowledge pul the tword the poles so you probably could do it. Of course I’m no physicist so I could be completely wrong

a copy of a Greek Telescope

mom can we have magnetic field?

no honey, we have a magnetic field at home

magnetic field at home:

how do we know till start developing it?

are we condemned to live with refining 1950 designs forever?, is that the best we can do?

Venus already has a magnetosphere, created differently but still effective.