Can Rotating Magnets Create a Stronger Magnetic Field?

[lovicodo]

hello, i have a doubt

i bought some small neodimium magnets 8x3mm
and now i would like to try some experiments with them

i have a doubt:
if i rotate one of these magnet around one of its parallel axis, very fast , near 1000000 rpm,
what happens to the magnetic field produced by the magnet?
if i bring another identical magnet near this rotating magnet, the magnet will be attracted or repelled?

if instead i mount two magnets on two opposite sides of a 1000000 rpm rotating wheel, what kind of 'resulting magnetic field' i will get?

does the magnetic field have 'a spatial persistence', i.e. does it change immediately as soon as the object is moved, or not? does this depend on the distance from the object?

sorry for the many questions, :)
thank you!

 

[davenn]

does the magnetic field have 'a spatial persistence', i.e. does it change immediately as soon as the object is moved, or not? does this depend on the distance from the object?

so what do you think ?
what reading have you done so far?

 

[Dale]

near 1000000 rpm,

Will the magnet material stay intact at those speeds? This sounds dangerous. I don’t think that you should worry about the magnetic fields as much as the material stress and strain and strength.

 

[CWatters]

I think 1 million rpm was a world record only 10 years ago.

 

[berkeman]

I think 1 million rpm was a world record only 10 years ago.

Link? It must have been a pretty small magnet!

I'm reminded of YIG oscillators... https://en.wikipedia.org/wiki/YIG_sphere

 

[CWatters]

https://www.livescience.com/3075-spin-record-set-1-million-rpm.html