Search found 334 matches
- Wed Jun 24, 2009 8:48 pm
- Forum: Design
- Topic: Is There an Optimal Size for Magrid Casings?
- Replies: 339
- Views: 172818
Now that I have the model working here is some data analysis: Slice thru the middles of the 2 short sides Showing field nulls and weakening field as it gets further from (above) the nulls. http://i299.photobucket.com/albums/mm317/tombo1234/Offset%20Coil%20Fields/X-Cusp_B_Field_6_OffsetCoil_000_-6.pn...
- Wed Jun 24, 2009 8:10 pm
- Forum: Design
- Topic: Is There an Optimal Size for Magrid Casings?
- Replies: 339
- Views: 172818
I suppose it's theoretically possible. But, I don't know how to do it. It would have a time consuming learning curve and I have other things I want to do. Also the only approaches I can think of would increase processing time incredibly. My gut tells me the the 20 minute excel macro could stretch ou...
- Wed Jun 24, 2009 4:33 am
- Forum: Theory
- Topic: Virtual Polywell
- Replies: 468
- Views: 202678
Kiteman created an Excel spreadsheet to do a similar job for an arbitrary set of conductors using a numerical integration of the of the Biot-Savart equation. It was posted here In the thread "Is There an Optimal Size for Magrid Casings?": I'm sorry, slipped my mind. Here it is. http://taenia.homeste...
- Tue Jun 23, 2009 8:16 am
- Forum: Design
- Topic: Is There an Optimal Size for Magrid Casings?
- Replies: 339
- Views: 172818
Could you generate a slice thru the other side of the coil, the long side? slice thru centers of long sides on xz plane: http://i299.photobucket.com/albums/mm317/tombo1234/XCuspVectors_XZ_Plane.png same with current turned down to make vectors more clear. http://i299.photobucket.com/albums/mm317/to...
- Mon Jun 22, 2009 7:25 pm
- Forum: Design
- Topic: Is There an Optimal Size for Magrid Casings?
- Replies: 339
- Views: 172818
One of the things I'm seeing is that the crescent shaped null connects two 3-sided vertexes making them in a sense 4 sided vertexes which agrees with the requirement for all vertexes to have an even number of faces. The null is not actually a current however it is a separation between domains of opp...
- Mon Jun 22, 2009 5:25 pm
- Forum: General
- Topic: I know i'm gonna regret this, but I just can't help myself.
- Replies: 133
- Views: 44549
Please explain the rationale of illegal shovels. OK - Profit The dealers and traffickers profit from the black market's high profit margin. The politicians profit from having a whipping boy to distract people from other issues. And, if you believe they are not saints then by direct and indirect bri...
- Sun Jun 21, 2009 3:28 pm
- Forum: Design
- Topic: Is There an Optimal Size for Magrid Casings?
- Replies: 339
- Views: 172818
Me too. I feel a bit like Van Leeuwenhoek looking through his first microscope. (Kiteman on 3/29/09 this thread) So you see that whatever the field nulls at the magnet's midplane are, the electrons will never get to them except in the very short slot in the center. And at that point there is NO META...
- Sun Jun 21, 2009 3:11 pm
- Forum: Design
- Topic: A question about higher order polyhedra.
- Replies: 153
- Views: 64785
- Sun Jun 21, 2009 9:35 am
- Forum: Design
- Topic: Is There an Optimal Size for Magrid Casings?
- Replies: 339
- Views: 172818
http://i299.photobucket.com/albums/mm317/tombo1234/X-Cusp_B_Field_5_Saddle.png ^^^---Cross section through the crescent cusp on the center plane.---^^^ The cusp is at the lower end of the red curve. It is a minimum. The center line of the rectangular opening far from the opening is at the top end o...
- Sun Jun 21, 2009 1:08 am
- Forum: General
- Topic: I know i'm gonna regret this, but I just can't help myself.
- Replies: 133
- Views: 44549
- Sat Jun 20, 2009 3:51 pm
- Forum: General
- Topic: I know i'm gonna regret this, but I just can't help myself.
- Replies: 133
- Views: 44549
When I was in Victoria (not Vancouver but pretty close) even in the worst parts of town I got the impression that even if I were mugged they would say please and thank you. eh? I don't think you realize how easy you've got it from the larger perspective. I have always been impressed by the civility ...
- Sat Jun 20, 2009 3:42 am
- Forum: Design
- Topic: Is There an Optimal Size for Magrid Casings?
- Replies: 339
- Views: 172818
Here is the top view of the crescent shaped filed null that we predicted. Notice that it is inside the magrid casing. I'm not sure whether this is a problem or an opportunity. http://i299.photobucket.com/albums/mm317/tombo1234/X-Cusp_B_Field_5_Top_Cusp_detail.png ^^^---many layers of vectors shown 1...
- Fri Jun 19, 2009 6:42 pm
- Forum: Design
- Topic: A question about higher order polyhedra.
- Replies: 153
- Views: 64785
Apology accepted. No problem. I get in a hurry sometimes too. Much of the cross section is required for cooling and insulating and mechanical structure. So doubling the number of wires does not anywhere near double the cross section of the Magrid's can. Let alone the diameter. That drawing was not i...
- Tue Jun 16, 2009 7:42 am
- Forum: Design
- Topic: Is There an Optimal Size for Magrid Casings?
- Replies: 339
- Views: 172818
It is a gradual degradation over several steps: the CAD rendered bmp is fuzzier than the drawing, then the picture in photobucket is fuzzier than viewing it directly locally. Talk-polywell is about the same resolution as photobucket and jpg is about the same as bmp. I should take some time to unders...
- Tue Jun 16, 2009 3:37 am
- Forum: Design
- Topic: Is There an Optimal Size for Magrid Casings?
- Replies: 339
- Views: 172818
Modeling just the hole (with at .01 by .03 resolution) I see the vectors behaving reasonably well near the long crossovers. Those long, close-together crossovers dominate the fields in the area even more thoroughly than I had thought they would. But, near the short crossovers they dive nearly straig...