this been rolling around in my head for a long time now but would it be easy to make a semi-artificial gravity with magnets.

where the magnets are like on a suit or pads on your person? with it pulling it down would it be like having an artificial gravity?

Defying Gravity

That was a sci-fi show that was badly marketed and weirdly good. But they did that. Artificial Gravity through electromagnets in the deck, and a metallic jumpsuit. Also, hairspray with tiny magnetic particles in.

I agree, I think it could work.

The problem might be calibrating the level of magnetism to be powerful enough to hold the suits down, but not so powerful that it affects everything else, even non-metallic things, on the flight deck. You'd have to make sure that any equipment doesn't have too much metal in, so it's only affected by the mag-grav field by the right amount.

Not impossible, just bloody difficult.

I have the same idea but you would need a strong magnetic field to help on deciding which way is down.

In the Expanse they use shoes with electromagnets in the soles when they are not accelerating. It's not gravity but it keeps them from floating.

Otherwise you are mostly stuck with either rotation (simulated Gravity gets weaker the higher - the closer to the central axis- you are) or inertia based gravity (you need to accelerate or decelerate your ship so you only get it when moving.

1. It'd only affect ferromagnetic objects, so while it could've helped to combat muscle atrophy (if you wear a metallic jumpsuit), other things like changes in blood/cerebral liquid pressure would still be affecting your crew. Potentially this would be even more confusing than weightlessness on its own.
2. Magnetic and gravity fields diminish by the law of inverse distance squared (get 2 times as far, and you are affected 4 times less). But if for Earth said distance is to the center of mass of the Earth (which is far enough for several hundreds of meters not to matter much), in case of a ship you'd get strong attraction near the floor and much weaker near the ceiling, unless you somehow managed to generate a uniform field. It'd be like walking through a swamp - all day, every day.
3. Ferromagnetic objects would develop magnetism of their own, requiring demagnetizing them often to avoid mechanical failures.
4. If you use a field that changes at high-frequency to avoid permanent magnetisation, or even if your crew moves around fast enough, electric currents will be induced in those metallic jumpsuits of theirs. Not sure how dangerous that'd be, however - it could be just enough to ensure the suit stays warm, or it could electrocute someone if insulation was breached.

Battlestar Galactica, when the pilots have to get in the flight pods.

No the amount of magnetic energy required would be fatal

7005953
Only if you're trying to hold down a non-magnetic human body with magnets. If you're trying to hold down a magnetic jumpsuit, it could work.

7005804
Expanse did it too? Did they also mention magnetic hairspray?

7005805
on the blood/cerebral liquid pressure problem could it be fix with inplants?

am just shooting in the dark rigfht now is all

7006120
No, they only use magnetic shoes. Ships normally use thrust to simulate gravity while stations have spinning sections. The shoes are only a stop gap measure when gravity is otherwise not available. There also no electromagnetic field generators. The shoes only use their magnets to connect themselves (and the wearer, of course) to the metal ground.

The hairspray is also a bit silly. It doesn't matter to the body whether the hair is pulled downwards or not.

7006723
The reason they did that on Defying Gravity was... well because having the hair float around would require a bigger budget than the show had, but also, if you have hair floating around the cabin, it could get into electronic components. It's why you also can't have crumbly foods on the ISS.

7006753
Short hair doesn't have that problem and long hair can be braided or otherwise tamed. Using metallic hairspray seems a bit excessive.

7007102
Long hair will still float around, even braided, and TV budgets aren't that big.

Artificial gravity already exists and can be used in real life. Take rooms that need gravity and have it on a ring that spins around the ship at just the right speed to create a force that moves objects away from the center thus creating Earth like artificial gravity. The floor of the rooms would be facing away from the ship and would be curved around the ring. The center of the ship will of course have no gravity. The torque created by creating artificial gravity from spinning the large rings would have to be cancelled out by another ring spinning in the opposite direction.

7009135
would that make problems for deep space tralver?