we know that opposite magnetic poles will repel each other .... since our earth is a big magnet , isnt it possible for magnet to be repelled from the surface of earth and therefore float on the air ?
if we can control the strength of the magnet , arent we able to use it to float from the surface of earth ?
2007-12-27 16:31:14 · 11 answers · asked by karta s 2 in Science & Mathematics ➔ Physics
It's not as simple as that. No set of permanent magnets and ferromagnets can produce a *stable* levitating geometry. It's a theorem. Diamagnetic materials can, but they are usually too weak in practice.
As for just pushing off the earth's magnetic field, the net force on an isolated magnetic dipole is proportional to the *gradient* of the external magnetic field. The earth's magnetic field is weak and varies significantly only over thousands of kilometers, so no significant net force is achievable. A compass needle, by contrast, experiences a *torque*, which involves no net body force on the needle.
2007-12-27 16:37:38 · answer #1 · answered by Dr. R 7 · 2⤊ 0⤋
Maybe at the poles, but anywhere else, the magnetic field reaches you from the side so if you were able the get a strong enough magnet you would just end up being pushed to about the equator and somewhat underground.
But following the guy that answer right before me, i guess the electron build up would be different and take any possition due to some quantum laws, and the difference in air pressure, even just a small amount would tip the magnet.
2007-12-27 16:38:33 · answer #2 · answered by sumhow 2 · 0⤊ 0⤋
There have been some experiments with this, and they were able to levitate very small weights. The problem is this... because the magnetic force of the earth is so diffuse, in order to create that kind of magnetic field using a device, it would have to be really enormously strong. Even with our best rare earth and electronic magnets, this means a very very large device to float even something the size of a human being. Next thing is a magnetic field that large and strong is going to need a lot of power to generate it. Add to that the fact that it would disrupt all of the electrical power, communications power and so on for miles around and you can see the problems. There are even theories that it could start causing our atoms to pull apart in unexpected ways killing the subject. So right now, the technology just isn't there.
2007-12-27 16:36:51 · answer #3 · answered by CB 7 · 0⤊ 0⤋
There is a prototype train being developed that runs on the opposing poles of the magnet. If it were to be used, it would be in a totally contained track, with alternating positive and negative poles on the top of the tunnel, the bottom of the tunnel, and the top and bottom of the train. Electricity is used to turn on and off the poles as the train is pulled.
The earth spins in space, and produces the gravity and centrifugal forces. Magnetism is a very small part of it. Furthermore, it is in orbit around the sun, which pulls the earth in while the earth is trying to propel out.
What I think you need to be asking is, "What sort of a system can be created that will cause me to float in thin air?" And I don't personally think it is possible without jet propulsion, which is altogether different.
2007-12-27 16:47:57 · answer #4 · answered by Anonymous · 0⤊ 0⤋
No...
Look into magnets and magnetic fields.
But because of the shape of the magnetic field of the earth, its just is not possible.
To make a picture for you, think of the earth as a magnet, and then the equator would be on the line perpendicular to the magnet (no real magnetic field). So as you travel, not only does the magnetic field change in strength, but direction too, so the math just can not be possible.
2007-12-27 16:34:51 · answer #5 · answered by Patrick 3 · 0⤊ 0⤋
I think it is possible. But the gravitational force of the earth is much much greater than the magnetic field force of the poles that's why the magnet won't float.
Maybe you could increase and control the magnetic forces of the earth, not the magnet, and let's see what will happen. LOL!
2007-12-27 16:41:27 · answer #6 · answered by little_bigb0y 3 · 0⤊ 0⤋
well you can turn the iron into a magnet and then use opposite pole attarction to make it float. belive it or not if you go outside and take a steel hammer point the iron north and wake the hell out of it with the hammer it will become magnitized. my dad is a nasa engineir and he showed me that. it was pretty awsome.
2016-04-11 04:41:48 · answer #7 · answered by Anonymous · 0⤊ 0⤋
sort of but the magnetic poles balance as the earth rotates giving you the gravity nessecary to stay on ground but if you could stop the earth from spinning or give your magnetic creation the illusion of non polarity or as if their was no axis movement then everything would float easily....skipper
2007-12-27 16:35:59 · answer #8 · answered by captmimo22 2 · 0⤊ 1⤋
yes but not at this time. the weight of the magnet is still to heavy for the field to be able to lift anything of much size and much time with out drawing to much power, and without a cord that's battery powered and we just don't have good working batteries that don't weigh a ton yet.
good idea, keep working on it and my be you can solve the problem for us all.
2007-12-27 16:35:59 · answer #9 · answered by John M 6 · 1⤊ 0⤋
Haha youve been watching Mythbusters
2007-12-27 16:33:43 · answer #10 · answered by aaron r 3 · 0⤊ 0⤋