Talk-Polywell.org

How about this magrid design? Have it been something like this before?
Its a twisted circle, its have two gaps and the magnet lines are closed.
[img]http://farm9.staticflickr.com/8237/8516 ... _b.jpg[img]

Looks like it would have one hellaciously long line cusp. They tend to leak badly.

You can think of this as a descendent of the "baseball seam" devices from the 70s. See: http://www.flickr.com/photos/llnl/3085193876/

2 very long line cusps, but yes leaky.

Nice graphic, Torulf.
But, if it breaks, will it leak mercury? :)

Posting a historical link to other spherical magrids:
viewtopic.php?f=3&t=2649

Rjay goes crazy with spherical meanders starting around page 10.

Long line cusps but narrower. It is a partiial solution and I suspect is approaching what I have considered and what I suspect is the Skunk works design. A key point is forming a single central magnetic null that might lend itself to Wiffleball inflation.

Also, I'm uncertain what the B field is like where the magnet reverses direction. The discussion of the baseball lacing design deficiencies discussed in the EMC2 patent application may indeed apply.

Dan Tibbets

D Tibbets wrote:Long line cusps but narrower.

Why do you think these would be narrower? They are basically just the typical point cusps stretched all the way around the sphere several times.