Magnetic Shielding

[sulo-wilen]

As I am not really aware of this: just a silly question: as far as I understand that physical shape of magnet does not affect much about the shape of the magnetic field? else than smaller=weaker?


Just thinking about the directing of field. or perhaps using other magnets ot compromise it..  but I think that if this would be so easy this problem would be solved already..


On other hand I think that some magnetic motors should use some kind of cam drive mecanism to have "timing" on the attracting magnet.. and a decent flywheel.

[raburgeson]

Geometric shapes have a lot to do with it. Johnson's magnetic motor, is one example. I had a magnet from GE, it misteriously disappeared after it had been posted in here in the past. It had a Angle about 45 degrees on one end. I had a picture of it here long ago, maybe it can be dug up? All the magnets I had are gone. It might be here somewhere but, I have given up looking.

[teslaedison]

the perfect shielding are magnets that repels each other as in North to North and South to South as cushioning's to each other without any metal to metal frictions either !!!  I am putting two diagrams to show you this
Thomas C.

[teslaedison]

here is a link to help with pyrolytic graphite shields or repels magnetic fields too
http://en.wikipedia.org/wiki/Pyrolytic_carbon


http://en.wikipedia.org/wiki/Diamagnetism


I hope this helps you guys out
Tom

[teslaedison]

The best known magnetic shielding is magnets themselves with North repels North and South repels South right Hint Hint !!!
Thomas