0.7 Tesla permanent magnet

[Skipjack]

Another interesting article on Next Big Future
http://nextbigfuture.com/2010/06/07-tes ... .html#more

This is pretty interesting, I wonder what happens once these magnets reach the strength needed for a polywell?
Could they be used then? I mean this could make polywells a lot, a whole lot cheaper to build and operate.

I had to lol at the name Federico Casanova. If this was not on NBF, I would call it a hoax

[TallDave]

Unfortunately, permanent magnets have field lines going into the magnet, so they aren't suitable.

Interesting, though. That thing is so small!

[D Tibbets]

Permanent magnets can be stronger than this.

http://en.wikipedia.org/wiki/Rare-earth_magnet

The significance of this magnet may be it's uniform field with small sizes.

In any case the magnetic fields in permanent magnets are not oriented properly for a Pollywell. The North and South poles always enter the magnet at some point.

Dan Tibbets

[Skipjack]

Thanks for the clarification. Would have been to good to be true, hu?

[IntLibber]

Permanent magnets can be stronger than this.

http://en.wikipedia.org/wiki/Rare-earth_magnet

The significance of this magnet may be it's uniform field with small sizes.

In any case the magnetic fields in permanent magnets are not oriented properly for a Pollywell. The North and South poles always enter the magnet at some point.

Dan Tibbets

Can't you just bend one around in a circle?

[chrismb]

FYI this looks like a cylindrical halbach arrangement, and would not, at all, be suitable for a Polywell or any other magnetic confinement system that requires anything other than a unidirectional field.