Electromagnetic waves can travel over long distances without interruption. But magnetism, the field that attracts or repels objects, only works at close range. Now a team of Spanish and German researchers proves otherwise: They have developed a "magnetic hose," capable of transferring a magnetic field across long distances in any direction they want.
The problem is that magnetic fields decay very quickly with increasing distance from the source. That's why papers fall off your refrigerator when you stack them too thickly. This new method would amplify those fields, allowing magnetic fields to still propagate far away from the magnetic dipole that generates them. It requires a metamaterial magnet-amplifier.
Carles Navau and his fellow researchers think of magnetic fields like any other electromagnetic wave, only with an infinite wavelength. So theoretically, these waves could be controlled like other electromagnetic waves, with amplifiers and transformers. A magnetic hose made of concentric rings of metamaterials could transmit, for lack of a better word, the magnetic field. A tube about 10 times longer than it is wide would transmit 90 percent of a magnetic field, they say.
In a small prototype, they tested a 7-centimeter superconducting tube with a coil at one end generating a field of 1.3 mTesla. The magnetic field was guided through the superconducting "hose" and out the other end. Their paper is posted on the arXiv preprint server.
This could be useful in quantum information systems, the authors explain. Magnetic hoses could be used in quantum processors or quantum repeaters, extending magnetic fields well beyond their normally tiny spheres of influence.
Interesting. Another use I can think of that might be possible, is improving the confining magnets in particle accelerators, MRI style machines, and fusion reactors.
One of the key limiters in those systems is how powerful you can make the magnetic field within. With this method, you could move the same magnets further away, cram in a couple more ( and improve the cooling for them ), and still have the field reach the source at a high strength.
Then, this whole thing could open up a new series of research, inventions, and innovations thanks to the manipulation of magnetic fields. It will be interesting to see what other changes could be done to a magnetic field.
Why am I given the "You might be a robot here is an illegible captcha for you" when this garbage gets through on nearly ever article?!
On the article, would it be possible to use incredibly strong and focused magnetic fields as a sort of enhanced sand bag in warfare? Sort of like all those futuristic force fields you can hide behind in video games.
You could set them up around high priority areas that need protection, it could suspend any metal shrapnel, bullets/projectiles in its field. Or maybe it just doesn't work that way?
if you could expand this to a much larger scale, the muzzle velocity of rail guns could be dramatically increased.
I wonder if this could have any implications for electricity generation.
Does this have applications for electric motors and maglev?
Is this a functional approximation of *Magnetic Monopoles*?!
Last time I read anything involving meta-materials and magnetism it concerned simplified modeling of magnetic monopoles (which are impossible.) Which was about all I understood of that article...
Now what little I think I know about monopoles comes from the fiction of Larry Niven. Mainly that such a beast is half a magnate (only an N or S pole) AND, interestingly the strength of it's field would scale directly with distance, not at the square like *real* magnetic fields do.
Naturally such a thing would have a big, huge, Massive effect on a lot of technologies.
So I'm still wondering if this might deliver on some of that promise. (Very cool.)
(Continued)...I mean you could increase the effective radius of effect for one pole but not the other. As in the image.
Even if you'd essentially be focusing it, almost like concentrating light, that would still leave a span of distance where charged particles and such would only feel *one* pole and not the other. Not even a tiny little bit.
That's been impossible. Fundamentally. This might stir up as much new science as discovering the neutron did.
I wonder what implications this could have on say magnetic force feilds for repelling cosmic radiation. They can sort of do that now but it takes tremendous amount of energy to create it. Perhaps the amount of energy required can be trimmed down significantly to generate it with this method.
I thought the exact same thing. Who needs rockets for space ships to reach lower earth orbit now? Just tether a tube of this stuff with the appropriate distance, and watch your shuttle hover up into space. I assume there are 10,000 reasons why this wouldn't work, but until this gets hashed out, it seems pretty astounding!
D13, I hope you realize how much power that would require. I think that before we even think about flying cars, we need to develop Cold Fusion Generators. Once we achieve those, we won't need to worry about the power aspects. Good thinking though, God knows I want a flying car...
Please check your science -- they are talking about static magnetic fields -- there are no 'waves'.
Only talking about your article -- the source at arXIV correctly describes the fields as static.
Spread-focus radio is just so yesterday. Put an emitter behind that puppy and cram some alpha particles through it.
Yeah. Throw a heavy alpha chunk followed by infrared pulse to really burn that sucker in. Hell, we might could get a lightsaber. A more elegant weapon, for a more civilized time.
As I see this, it could lead us fairly quickly to a tractor beam/repulsor going the Roddenberry way with a dish. One of those 50 Tesla jobs could be projected on an asteroid.
Separate metals from water. China's rare earths? Yeah, right.
Neutron booster. A true bit plucker for my computer so I can be able to boot bums with assurance. New surgical instruments for cutting, microstitching-and mebbe even cell re/placement with speed and accuracy. Absolute computer network intake/output control.
Don't forget McFly's skateboard either, or I'll be pissed. If you want any more, let me know. You know, like high speed manufacturing at any scale, including plugging rivets right into hull metal. Welding using chemicals. 3-D printing. Vacuuming metals from natural gas or oil. Ring storage units for heavy water that cycle themselves.
Or if you wanna think real big, suck atmo from one place, aim, and shoot it to another in space. No storage necessary.
As it says, a field weakens with distance. But that is pretty moot if you just use the material and two fields, like using a planet field to your benefit. It can give you all the distance you need.
How's this? Fire a hunk of beryllium followed by a chunk of a heavy alpha emitter. Armor becomes a weakness rather than a strength. Neato. Rather than having to throw such a heavy electrical charge, just get your high eV from the air en route. Baaad bombin.
Accurate supercolliders. Fusor. Pneumatics, hydraulics, and sensors. Depending again on the right material, mebbe sustained plasma containment that can work in a latitude of environmental conditions. Maser--without the microwave emitter or anywhere near the power normally required.
Printing perfect crystals of any profile, configuration, or composition; natural or not. Dilithium, anyone?
Two shaped as half-rings, ruby in gap, and get a pumped laser-that can then be used in a photon torpedo or a mine would be cool.
On one side of wall, pool of water with used fuel rods. This on other. Turn on. Pull electrons out of the wall. Power the planet with just one. With energy to blow.
Ok, it ain't got all that much energy, but it certainly has a lot-and it ALL could be stripped now.
Of course, after thinking on this the other night I came up with a use for this that beats pretty much any of my listed ideas. We could be fixing a problem that's been kicking our collective world science butts for a long time now, but ain't no one paid me even 77 bucks an hour like lilian spampants up there. So I ain't tellin.
Ahh, screw it. So you take tour basic torus field and levitate it so it spins freely. Ramp up speed and then start injecting carbon-carbon chains. (nylon) Eventually we could get good enough at it to generate high density carbon cable or tube right off the bat out of the center of the torus and build the space elevator, but for now it's a high speed way to generate aligned carbon fiber-first gen. The nylon is a great material because it's both conductive as well as a natural insulator.
So you got your standard torus on a tube. But you need to of them for this one, field ends facing one another, turning in opposite directions as we'd expect. Make a high actinide steel ball with holes in ends for the tubes to stick out. Put a power lead on each end. Pour in what you want to generate power from. Free power is cool, but the best way is not to have to do anything, right? Throw a whole bunch of ring magnets with tubes just long enough to overcome stretchability. The leads would have to be attached at some inner layer. Then you just throw it in water and it pulls slow electrons from the water. Throw it in heavy water and it helps scatter radiation and neutrons as well.
Oh, better explain the second one there, which acts on energy density of each torus. As they gain electron mass, they will overcome their natural tendency to shy from the shielding, and the tube will touch, discharging.
What I like about this model is that it's DC.
This has a universal truth in it for physics, I believe. Really looks like an analog for galaxies and black holes, huh? We could generate a universe model with these. We THINK that we are expanding to some neutral point, then start collapsing back in. But we aren't accounting for velocity in that theory. We aren't taking into account that energy can arc. And we don't take into account that barrier layers have been found at every level, from subatomic on up. A boundary layer at the end of our universe is by nature going to be a highly negative charge-or we wouldn't be accelerating on the way there. So when we do get there, it's likely gonna sap our charge.
And yeah, militaries will hate this, but with a high enough field, we'll be able to draw and work high density metals. Pull radioactivity as the fuel source it is. And yes, scramjets too. We must have scramjets. Think launch from Earth, coast to Mars. Our capability to ramp specifically placed torii inside the necessary shell means a jet could easily be created that just uses atmo and the fields and rebound cycling. Turn on, instant compression and launch, ramp up to full burn underway. Moron this later.
So inside yer standard actinide-heavy containment ball ya have a problem element like mercury, and your torii have slightly vortised cones instead of tubes, and viola! Physical 6 dimensional xray grid for Sol system.
Holoemitters, fer sure.
Mechanical sensors. Precision lens grinding.
I'm having a harder time conceiving of things I couldn't make work with this, personally.
Why is people talking about levitation and flying cars. This material and hose can transmit the magnetic field further away from the actual magnetic source. But you still have the hose in between. The distance you have between a levitating object and the hose is still the same it would be between a magnet and the object with no hose.
The title of this article is misleading.
Maybe this is a solution to Mars' lack of magnetic field. I don't know anything about anything, really, but it seems like if they could scale it up, it might work.