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Would it be possible to counteract the effects of high geforces on manned space flights, or even provide artificial gravity, using this?
http://www.hfml.ru.nl/froglev.html
Given that it takes 16 teslas to counter the weight of a small frog (in microgravity, surely this could also give it the same effective weight as if it were on earth?) it might consume quite a bit of juice doing the same with humans.
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I guess you'd have to be very careful not to have any metal from accidents or operations in your body.Originally Posted by Damburger
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Indeed. 16 Teslas + surgical steel bolted to your thigh bone = pain
It would probably best operate like the booth things they have in Event Horizon You go in them naked for the duration of the acceleration.
Order of Kilopi
Dampening? is this idea all wet?
What about the differences in properties among the body constituent parts and fluids? Wouldn't that cause internal separation? Not as extreme as surgical steel pins, sure, but we're talking large fields, right?
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Watch the video. Apparantly the frog didn't mind too much.Dampening? is this idea all wet?
What about the differences in properties among the body constituent parts and fluids? Wouldn't that cause internal separation? Not as extreme as surgical steel pins, sure, but we're talking large fields, right?
From what I understand, water is what is responding to the magnetic field, and all body tissues have water in common. Thus theres no problem.
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That must be one confused frog.
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The large 13 Telsa solenoid would be accelerated in the same frame-reference as the levitee inside, so I don't see how inertial dampening would be possible.
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It would have to be possible because it is possible to counteract gravity in this way.
The magnet would simply pull the occupant in the opposite direction to the geeforces they were experiencing. If it mattered that the magnet itself were being accelerated the same as the occupant, the thing wouldn't work on Earth either would it?
Order of Kilopi
And it would take Orion to launch the thing and the powerplant needed to run it.
Fine by me!
Order of Kilopi
Yes, this was done a few years ago, and I mentioned it in another thread yesterday. From here:
http://www.hfml.science.ru.nl/phystod.html
So it is tricky, and sounds like it requires a lot of room (the levitation area is relatively small). But:Just because an object can levitate does not mean that it will when placed in a strong enough magnetic field. The right conditions are surprisingly subtle; for instance, even an increase of only a few percent in magnetic field will normally destabilise levitation and cause the object to fall.
It does go on to say it isn't perfectly uniform. As for magnetic materials in the body:The most distinctive advantage of room-temperature diamagnetic levitation, however, is that - unlike any other known or feasible technique including superconducting levitation 9- the suspension is distributed uniformly over the bulk.
As for levitating people:Biological systems are astonishingly homogeneous with respect to diamagnetic levitation: Seemingly diverse components such as water, tissues, bones and blood differ in their values of c /r by only several percent,11 which implies that gravity is compensated to better than 0.1g throughout a complex living organism. Further, even if paramagnetic molecules and ions are present, as in blood, they contribute only to the average susceptibility; their strong response to the field is smeared out by temperature (mBB << kT), Brownian motion and a much stronger coupling to the surrounding diamagnetic molecules.11 Probably, the alignment of very long biomolecules along the field direction is the magnetic effect most likely to obscure true microgravity in complex systems.
In theory, yes, you could build a gravity compensator big enough for a person, but it would require powerful, huge magnets. So far they appear to be fairly benign on living creatures, but if you wanted to compensate for (say) 20 or 30 Gs, it might be a different story. Then again, we aren't going to have constant boost ships doing that until there are some fundamental advances, so there is no rush.According to magnet designers from the National High Magnetic Field Laboratory in Tallahassee, Florida, existing technology can accommodate objects up to about 15 cm. However, levitating a human would require a special racetrack magnet of almost 40 Tesla and about one GW of continuous power consumption.
If somehow it could be made compact, with low power requirements, you could imagine a compensator in a fighter jet. I see no chance of that happening, however.
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Sorry, but this whole idea is all wet, for many reasons.
1. Anyone with any metal would be exempt (fillings, even excessive abberations of iron in their blood over time as it would pull their hair out by it's roots).
2. The weight of the equipment far exceeds wet-couches, in which humans immerse themselves in D5W and endure the G's as one with the world. Up to 5, at least, long-duration. Want longer duration? Perfect a hydrocarbon breathing solution with a specific gravity equal to the human body, and you're in there! Up to 25 Gs.
I appears 2 reasons are enough!
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I agree, if you've the technology to go fast enough to need this, you've the technology to build it.
Thats not unreasonable - I'm guessing that bursts of very high magnetism are easier to produce than a constant field.If somehow it could be made compact, with low power requirements, you could imagine a compensator in a fighter jet. I see no chance of that happening, however.
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