Search found 334 matches
- Tue Mar 09, 2010 10:31 pm
- Forum: News
- Topic: New Scientist mentions Fusion-Fission hybrids
- Replies: 20
- Views: 6592
The problem I have with Thorium reactors is that the U232 (?) is fissile bomb material. It can be separated chemically, ie relatively easily. But, it only lasts a few weeks, which is a show stopper for someone sane who only holds these things for deterrence and would like to keep them ready for deca...
- Tue Mar 09, 2010 12:17 am
- Forum: Design
- Topic: 2D WB-7 B-filed simulation
- Replies: 49
- Views: 35520
Slicing my B field in the plane being discussed shows a result much like Indrek's. You are looking at 7 layers of B field vectors. The pink shows the coils. The blue cones are B vectors. The wiffle ball center is in the lower left quadrant. http://i299.photobucket.com/albums/mm317/tombo1234/TrunCube...
- Mon Mar 08, 2010 6:46 pm
- Forum: News
- Topic: Thermopower waves
- Replies: 4
- Views: 2707
- Sat Mar 06, 2010 10:15 pm
- Forum: Design
- Topic: 2D WB-7 B-filed simulation
- Replies: 49
- Views: 35520
I believe the field lines close through the triangular truncated corner of the cube, which is out of the plane of the picture. I see two "stagnation points" where the fields seem to cancel (dark blue). Gyro radius will go very large in those areas. It would be interesting to see how far those region...
- Mon Mar 01, 2010 6:29 am
- Forum: Design
- Topic: Different polyhedra require different strength magnets
- Replies: 158
- Views: 74811
Nubs: I would sure like to know if nubs on the machine at EMC2 are evenly hot all the way around their circumferences or if they have hot spots. (say toward the north and south poles) If most of the heat load is on 2 opposite sides then they could be narrower facing that direction and longer the oth...
- Mon Mar 01, 2010 6:21 am
- Forum: Design
- Topic: Different polyhedra require different strength magnets
- Replies: 158
- Views: 74811
The 8" OD of the coil includes layers of cooling and insulation. The actual SC cross section is more like 3-4" IIRC from a previous discussion of coil sizing. They do not have just one SC wire. They have as many SC wires as you would have turns. It is similar to the MPG. advantages: 1 Feed lines hav...
- Mon Mar 01, 2010 3:17 am
- Forum: Design
- Topic: Different polyhedra require different strength magnets
- Replies: 158
- Views: 74811
http://i299.photobucket.com/albums/mm317/tombo1234/TrunDodec/TrunDodecB.jpg http://i299.photobucket.com/albums/mm317/tombo1234/TrunDodec/TrunDodecA.jpg http://i299.photobucket.com/albums/mm317/tombo1234/TrunDodec/TrunDodecC.jpg http://i299.photobucket.com/albums/mm317/tombo1234/TrunDodec/TrunDodecD...
- Mon Feb 22, 2010 12:37 am
- Forum: Design
- Topic: Different polyhedra require different strength magnets
- Replies: 158
- Views: 74811
All standoffs should have full current so they are magnetically shielded. It is not just Amps that count. It is Amp - Turns. Yes, of course. To be more precise, the standoffs should have enough current to create a high enough B field at their surfaces to magnetically shield them from the (hopefully...
- Mon Feb 22, 2010 12:22 am
- Forum: Design
- Topic: Different polyhedra require different strength magnets
- Replies: 158
- Views: 74811
The funny cusps are a result of the LOCAL current geometry. They reside between conductors with oppositely directed currents where those currents come closest together. Actually, this is the definition of the line-like cusp that the WB6 generates in lieu of the funny cusp of the patented design. I ...
- Sun Feb 21, 2010 11:27 pm
- Forum: Design
- Topic: Different polyhedra require different strength magnets
- Replies: 158
- Views: 74811
Ok, here is what I am thinking: dodecahedron topology 1 m toroid coils run at 10 T (20 - 25 cm coil thickness, 60 - 50 cm bore, which exceeds msimon's minimum bore of 10 radii from alpha radiation cooling point of view). inside dodecahedron diameter about 2 m (assumes 6 -8 radii gap between adjacen...
- Sun Feb 21, 2010 9:42 pm
- Forum: News
- Topic: Polywell FOIA
- Replies: 475
- Views: 188316
... But every mech, and quantifiable numbers reached counts, as long as it is "me" (The FOIA requestor) doing it. ... Do you have to personally do it? (every keystroke? and every mile of carying newspapers?) Can't you hire someone to do some of the work? No one can reach a large audience without hi...
- Tue Feb 16, 2010 5:12 am
- Forum: General
- Topic: laser shoots down scud?
- Replies: 14
- Views: 4067
- Tue Feb 16, 2010 4:47 am
- Forum: Design
- Topic: Different polyhedra require different strength magnets
- Replies: 158
- Views: 74811
The funny cusps are a result of the LOCAL current geometry. They reside between conductors with oppositely directed currents where those currents come closest together. Look at the point at the center of the equatorial segment (center of a set of 4 segments actually). Let's call than 45deg West. The...
- Mon Feb 15, 2010 8:02 pm
- Forum: Design
- Topic: Different polyhedra require different strength magnets
- Replies: 158
- Views: 74811
...if it weren't for that equatorial member that cuts right through the center of the three equatorial funny-cusps. I don't think they do. I think they go between pairs of funny cusps. Look at the current directions and field directions. They have to be there to separate the areas of alternating B ...
- Mon Feb 15, 2010 8:36 am
- Forum: Design
- Topic: Different polyhedra require different strength magnets
- Replies: 158
- Views: 74811
I drew something similar in a very long winded post on May 30 2008: http://www.talk-polywell.org/bb/viewtopic.php?t=289&postdays=0&postorder=asc&highlight=magrid+config&start=60 It is based on an octahedron. http://i299.photobucket.com/albums/mm317/tombo1234/PolywellC-8x4-hedron4Circuit-1.jpg Here i...