Search found 17 matches
- Wed Aug 29, 2012 5:54 pm
- Forum: News
- Topic: Scientific Irrationalism: Origins of a post-modern cult
- Replies: 117
- Views: 48700
Engineering, repeatable experiments, and the philosophy of s
"The cure to all this is engineering. Can you make an artifact from the knowledge base?" I have come to think this is very important to the "philosophy of science." It seems to me that every time something that has been engineered is used, that use is (besides being useful) a repeat of a repeatable ...
- Mon Nov 28, 2011 6:38 pm
- Forum: News
- Topic: Small update from Lawrenceville Plasma Physics
- Replies: 131
- Views: 66240
Boy would I like to have these problems...
It would be great if both FF and polywell work out so well that we really have to worry about the comparative economics of building and using focus fusion devices and polywells. Tis a consumation devoutly to be wished.
- Thu Nov 24, 2011 12:35 am
- Forum: Theory
- Topic: simulation: SC 2011, Gyrokinetic Toroidal Code (GTC)
- Replies: 0
- Views: 5654
simulation: SC 2011, Gyrokinetic Toroidal Code (GTC)
Last week I attended the 2011 SC conference. There were (at least) two papers that dealt with a 'production' supercomputer fusion simulation code known as GTC. my quick web serach (googling 'Gyrokinetic Toroidal Code'): http://www.nersc.gov/research-and-development/benchmarking-and-workload-characte...
- Tue May 10, 2011 4:10 pm
- Forum: Design
- Topic: tokamak-polywell hybrid fusor
- Replies: 20
- Views: 19541
- Tue May 10, 2011 4:08 pm
- Forum: Design
- Topic: tokamak-polywell hybrid fusor
- Replies: 20
- Views: 19541
"...but due to the Lorentz force, the particles will tend to turn at right angles to the magnetic field, so some linear motion along the toroid length will tend to form and this will establish a direction which will cascade till most of the plasma has this behavior. It would be difficult and probabl...
- Mon May 09, 2011 5:52 pm
- Forum: Design
- Topic: tokamak-polywell hybrid fusor
- Replies: 20
- Views: 19541
Ah! Somebody else describes the idea better!
This description gives a much better quick understanding of an idea I posted a while back which didn't seem to attract any attention. I was trying to describe, I think, this same idea in a message I posted in February of 2008. http://www.talk-polywell.org/bb/viewtopic.php?t=584&postdays=0&postorder=...
- Tue Dec 07, 2010 7:15 pm
- Forum: Theory
- Topic: thread for segments files and parameters for simulation runs
- Replies: 370
- Views: 335914
Propagation time for electric and magnetic fields?
I have been thinking about this type of simulation, and I am mentally stuck on one thing: Are you accounting for the propagation of the magentic fields generated by the moving charges (and the electric fields associated with the moving charges) or are you assuming the propagation speed to be infinit...
- Wed Sep 15, 2010 9:24 pm
- Forum: Design
- Topic: Storage of Experimental Data
- Replies: 2
- Views: 12222
couch DB
some people at my work are experimenting with couch DB for dealing with datasets, results of algorithms run on datasets, etc. It's a RESTful database, and it provides reasonable structure with url access. It doesn't have the rigidity of a relational database and it gives more structure and ease of a...
- Mon Aug 23, 2010 10:41 pm
- Forum: Theory
- Topic: Measurable Polywell Fusion at low Voltages
- Replies: 22
- Views: 11631
Plasma vs. cloud of particles?
I'm going to reveal my ignorance here. When I think of the polywell, I think mostly in terms of particles, not plasma. I think of the magnetically shielded grid as a fairly constant environmental entity (a simplification which I realize can lead to trouble). I then visualize electrons moving around ...
- Mon Jul 26, 2010 6:09 pm
- Forum: Design
- Topic: Simulation Barriers
- Replies: 16
- Views: 15078
Possible supercomputer access, best software starting point
Due to recent (not entirely desired) career jumps, I have landed at an excellent spot in Sandia National Labs in Albuquerque. I'm a computer scientist (master's UNC-CH) with an EE/Math/CS Degree from Duke. Most of my career has been in data visualization, including a fair amount of supercomputer sim...
- Mon Jul 19, 2010 5:16 pm
- Forum: News
- Topic: Possible higgs discovery.
- Replies: 34
- Views: 14530
...and other revolution candidates.
I should also throw "modified gravity" theories into the contender list for future scientifc revolutions. There are probably others, but, as I implied in the last post, I'm just trying to throw this out there.
- Mon Jul 19, 2010 5:09 pm
- Forum: News
- Topic: Possible higgs discovery.
- Replies: 34
- Views: 14530
Scientific Revolutions
Last week I was reading some interesting stuff (likely familiar to many here) about Kuhn and his book about scientific revolutions. here's one line about it (a course outline from a professor at Emory) http://www.des.emory.edu/mfp/Kuhn.html Some key points related to this discussion seem to be: 1) N...
- Mon Jul 19, 2010 4:41 pm
- Forum: News
- Topic: Room-temperature superconductivity?
- Replies: 1893
- Views: 812457
Wired article is old...
That Wired article is from 2003. I haven't noticed diamond prices dipping noticeably in the past 7 years.
- Wed Mar 25, 2009 5:06 pm
- Forum: Theory
- Topic: Magnetic Monopoles
- Replies: 10
- Views: 6900
Using attractors to control chaotic systems...
Perhaps turbulence is a chaotic system, in the mathematical sense of "chaos." If so, it might be possible to "control" a turbulent system by finding an attractor which is beneficial, i.e. a situation where flow is smooth, and then figuring out how to supply inputs to keep the system in that attracto...
- Mon Jan 26, 2009 8:56 pm
- Forum: News
- Topic: Cold Fusion
- Replies: 21
- Views: 12919
Cold fusion real?
In Analog magazine, where I and I suspect others first came to know about IEC fusion through Tom Ligon's articles, Jeffrey Koostra penned an "Alternate View" column which basically took the position that cold fusion is now established as a phenomenon beyond all reasonable doubt, and also that it's d...