Search found 819 matches
- Thu Dec 18, 2008 9:11 pm
- Forum: Theory
- Topic: Circumferential scattering and edge annealing.
- Replies: 19
- Views: 9557
The point is made, I think, no need to press it; instabilities should be expected chris: where was that point made quantitatively? You made the entirely unfounded leap of faith, "because tokamaks see instabilities at these fluxes, Polywell will see instabilities". The more I read of your posts the ...
- Wed Dec 17, 2008 10:05 pm
- Forum: Theory
- Topic: Helium exhaust. Sputtering contamination.
- Replies: 22
- Views: 12017
It's all proposals and ideas! 25 years down the road on tokamak, they were already researching neutron bombardment of selected materials. So Polywell is way way behind, then, it does not yet know what the actual problems are yet to even start developing the experiments that might find out what ques...
- Wed Dec 17, 2008 2:05 am
- Forum: News
- Topic: "The verdict is positive"
- Replies: 99
- Views: 56036
Joe: it was this paragraph that got me going. The idea is still way out of the mainstream, however. In his new book about the frustrating fusion quest, "Sun in a Bottle," Charles Seife says that WB-7 and similar contraptions, known generically as fusors, aren't good candidates for power-generating f...
- Wed Dec 17, 2008 12:37 am
- Forum: News
- Topic: "The verdict is positive"
- Replies: 99
- Views: 56036
I must object to the Polywell following being described as "cult-like". Bussard was a top class scientist and there are good legitimate reasons why this might work. Now Tokomak fusions pushers have blundered on with little but blind faith that they can stabilise their plasma trubulence for over 4 de...
- Tue Dec 16, 2008 1:06 pm
- Forum: Theory
- Topic: A few questions on Polywell facts and figures.
- Replies: 63
- Views: 33183
chrismb: your Uniwell!? idea, someone else has already suggested this idea on another thread here somewhere ... start trolling... probably call it a "Toriwell" or a "TokoWell" and you could get some funding from Princeton for it. What's to stop the plasma flowing around the toroidal axis and floppin...
- Tue Dec 16, 2008 12:48 pm
- Forum: News
- Topic: Potential Tokamak Breakthrough
- Replies: 11
- Views: 5903
Stabilising turbulence with temperature gradients seems like piling more complications onto an already complicated problem ...i.e. good luck with that. The number of work-arounds, variations, add-ons and permutations on Tokomak designs is a manifestation of one thing only ... it is fundamentally fla...
- Tue Dec 16, 2008 12:38 pm
- Forum: Theory
- Topic: A few questions on Polywell facts and figures.
- Replies: 63
- Views: 33183
Art, yes, the tokomak is so brilliant it has taken already 50 years to demonstrate that it might be possible to build one that might one day work, given many more billions. And, oh yeah, it is a globally unstable flow topology. For now, it has proven to be a blind alley of holy grail proportions, ho...
- Sat Dec 13, 2008 9:13 pm
- Forum: News
- Topic: Potential Tokamak Breakthrough
- Replies: 11
- Views: 5903
Stabilising turbulence is a non-trivial problem, even in a non-conducting fluid where there are no EM effects. Any toroidal flow is hydrodynamically unstable to the first order . In the same way that a flow along pipe and river bends causes a secondary flow that rotates the slower moving particles n...
- Wed Dec 10, 2008 10:10 pm
- Forum: News
- Topic: MIT Fusion
- Replies: 12
- Views: 8227
News is they have induced a "controlled" rotation in the plasma, thus demonstrating the possibility of stabilising a plasma via a momentum mechanism rather than magnetic. Fluid dynamic turbulence is THE big problem in plasmas, only secondarily complicated by EM effects. The EM plasma types don't do ...
- Wed Nov 19, 2008 8:46 pm
- Forum: News
- Topic: Radioactive Decay not a constant ?
- Replies: 49
- Views: 24322
gblaze: '"undulatory" character', it doesn't as we now know. This statement is incorrect. Scientifically speaking, you can only say that it has not yet been measured , not that it definitively "doesn't". I was merely replying to your statement of being ignorant about compression wave theories of gra...
- Tue Nov 18, 2008 11:59 am
- Forum: News
- Topic: Radioactive Decay not a constant ?
- Replies: 49
- Views: 24322
How would gravity ever be a compression wave? I've never heard of this. http://en.wikipedia.org/wiki/E._T._Whittaker "In the theory of partial differential equations, Whittaker developed a general solution of the Laplace equation in three dimensions and the solution of the wave equation. He develop...
- Fri Nov 14, 2008 11:42 am
- Forum: Theory
- Topic: Wiffle-Enhanced Inertial (Thermalized) Confinement?
- Replies: 7
- Views: 5374
- Wed Nov 12, 2008 6:01 am
- Forum: News
- Topic: Radioactive Decay not a constant ?
- Replies: 49
- Views: 24322
- Sat Nov 08, 2008 3:24 am
- Forum: Theory
- Topic: Hypermatter fusion reactor
- Replies: 32
- Views: 19598
I suppose anything goes in the "Theory" section. I can't see any valid predictions coming from all of this. Tell it to the judge? or the People's Liberation Army of the Chinese communists? Greens shouldn't be let anywhere near the levers of power. They will happily drive humanity back to the Dark Ag...
- Fri Nov 07, 2008 7:42 pm
- Forum: Theory
- Topic: Hypermatter fusion reactor
- Replies: 32
- Views: 19598
The material requirements for solar and wind generators are huge. Aluminium is needed in large quantities for wind turbine blades and towers having a 15-20 year design life. Low energy output per unit mass of installed material means a massive demand for aluminium will be digging up holes and suckin...