[Spridgets] Fwd: 7 MRI's

[Dave KK7SS]

Ferrous content is only meeded to induce a magnetic field in the material.

It's not a case of the air becoming magnetic. It's that magnetic fields affect molecular behaviour...

Check up on Plasma bottles...

Dave G  KK7SS
DN06ig

'65 Sprite - in process
'76 Midget - driver

----- Original Message -----


> Electricity does move air, so why not magnets??

'cause the air does not (hopefully) contain iron, the key ingredient to magnetism. The sound is likely the magnets resonating, or more simply the coils vibrating as they are pulsed.