- #1
Mack7963
- 16
- 1
Hello PF people
i just joined the forum after many many months of being driven insane concerning Earnshaw's Theorem, i myself am not a scientist or physicist so i am limited in the amount of knowledge that i have, but my curiosity won't let me accept what everyone else seems to be in agreement with.
As far as i can understand it is stated that a permanent magnet cannot achieve stable equilibrium, which is why they always attract, as i have discovered on many occasions, my own sense of logic tells me that this is due to each magnet having a single axis, so after thinking about this for a while, i had one of those archimedes moments, although i wasn't in the bath at the time, what if the the single axis became a shared axis, between two permanent magnet, let's say one magnet at point east and one at point west, joined via a rigid connection, my logic tells me that each magnet would cancel the other out, which as far as i can see would create a third state, stability, the problem i foresaw was that the magnets would try and flip the other way, using the north south axis, so using the same process and adding two more magnets to cancel out the potential north south flip, and connecting them with a rigid body would mean the magnets have no where to go, so all they can do is sit there above a surface made of permanent magnets, possibly using a halbach array for the surface, i honestly believe that with a four magnet rig connected to a cross shape, stable levitation of permanent magnets can be achieved. i have already built a platform form for the magnets to be mounted to, but sadly i built it to big, not taking into account that magnetic fields are curved, i did manage to hold the whole thing in one place but its tendency to slide off the field was the only issue, the usual flipping characteristic was not present, the next one i build will be a lot smaller so i can build a surface that it won't slide off. i would seriously love some feedback on this concept. i don't know if youtube links are allowed on here but i put a video on there of me doing this experiment, as i said at the beginning i am not a physicist so please don't be too harsh in your replies.
Thank you
Michael
i just joined the forum after many many months of being driven insane concerning Earnshaw's Theorem, i myself am not a scientist or physicist so i am limited in the amount of knowledge that i have, but my curiosity won't let me accept what everyone else seems to be in agreement with.
As far as i can understand it is stated that a permanent magnet cannot achieve stable equilibrium, which is why they always attract, as i have discovered on many occasions, my own sense of logic tells me that this is due to each magnet having a single axis, so after thinking about this for a while, i had one of those archimedes moments, although i wasn't in the bath at the time, what if the the single axis became a shared axis, between two permanent magnet, let's say one magnet at point east and one at point west, joined via a rigid connection, my logic tells me that each magnet would cancel the other out, which as far as i can see would create a third state, stability, the problem i foresaw was that the magnets would try and flip the other way, using the north south axis, so using the same process and adding two more magnets to cancel out the potential north south flip, and connecting them with a rigid body would mean the magnets have no where to go, so all they can do is sit there above a surface made of permanent magnets, possibly using a halbach array for the surface, i honestly believe that with a four magnet rig connected to a cross shape, stable levitation of permanent magnets can be achieved. i have already built a platform form for the magnets to be mounted to, but sadly i built it to big, not taking into account that magnetic fields are curved, i did manage to hold the whole thing in one place but its tendency to slide off the field was the only issue, the usual flipping characteristic was not present, the next one i build will be a lot smaller so i can build a surface that it won't slide off. i would seriously love some feedback on this concept. i don't know if youtube links are allowed on here but i put a video on there of me doing this experiment, as i said at the beginning i am not a physicist so please don't be too harsh in your replies.
Thank you
Michael