Talk-Polywell.org

new videos. includes electrons (thanks to the bug fix). thanks to a little parameter i put in for testing, we can see them start out w/an electrostatic differential: w/electrons dominant on the inside: http://www.youtube.com/watch?v=Tjt9A8leMzA w/electrons dominant on the outside: http://www.youtube...

those virtual results are wrong - there's an oddity in the original code i wasn't aware of (and apparently neither was nvidia). position is stored as a 4-vector so i just use the extra field to store the charge (the original used it to store mass). turns out thou that 4th field actually scales the p...

i was using this: http://cnx.org/content/m31103/latest/ to find the magnetic field on a point induced by a current in a finite straight wire, only to find out in the end that it only calculated magnitude, and not direction. so i calculated direction as the cross product of the current and the line p...

code hosted on sourceforge now.

https://sourceforge.net/projects/em-nbody/

svn co https://em-nbody.svn.sourceforge.net/svnroot/em-nbody em-nbody

yes i have. that's stage 3: particle cycling. and i've actualy thought a little into that already. there's going to be a "loss radius" coming off the wire segments, which is basically the radius of the wire. a particle in that radius is considered lost. also, as you said, too high x^2+y^2+z^2 and it...

i wrote some code to do mixed particle em-simulation on a GPU. you can see a run here: http://www.youtube.com/watch?v=x5zPjqashAc next step i'm working on adding a static field. it'll work off a list of 3-d line segments w/ relative current and voltage. so file input format would be like this: x1,y1...

Tada!

http://www.youtube.com/watch?v=x5zPjqashAc

i've made the protons a little darker blue since i recorded that video 'cause i noticed they were a little hard to differentiate from the borons.

now i can officially say i did something that was pretty cool and had something to show for it.

john, from your responses, as you say i don't mean to insult you, but it seems like it would be utterly hopeless to persue this topic further. i've stated everything that needs to be stated clearly and concisely but you're hell bent on confusing yourself to come to some pre-ordained conclusions that...

got it working now. i don't have any static electric or magnetic fields yet though, so all it does is expand. i got 1 part protons 1 part b-11 ions, and 6 parts electrons (to make net neutral). i start everything off with a velocity of zero and a random position, and the electrons just fly off right...

i've seem to run into a problem modeling the b-field of particle-particle interatction. when i turn it on all the particles disappear. i'm guessing they their positions become infinit. so why? well at first i was thinking a bug, but now i'm thinking that as a proton and electron get closer they attr...

"particle" is easy to define: a "particle" is a conceptual tool for reasoning about physical consequences. it has never been anything otherwise since the first philosophers first discussed it, and arguably well before that. more precisely, it must satisfies the following mathematical criteria: 1. it...

due to the difference in mass, the electron's radius of rotation is about 1,800 times that of a proton and thus so is its speed, and thus, by the biot-savart law for a moving charged particles, so is the strength of the magnetic field it produces. so it's not that the dipole moment is cancelled out,...

your "ill-informed" comment was regarding things i said about programming, etc. which were far off the mark. also, experience does not equate to information so even if it was on the relevant subject that still would not lend logical support to your statement. but enough about that. thanks for your s...

here's a video sample of the n-body code running on, i believe an 8800gtx. i believe the simulation shows 16k particles. http://www.youtube.com/watch?v=HUGjUvjtwS8 my kernel will take about 3 times as many FLOPS to do E and M field than just G field (and a lot more in relativistic mode) and the time...

happyjack: Ok, so let's say your are not presumptuous thus you can do what you said at the outset. A full 3-D mixed-particle validated simulation on your home computer (presumably using your own code that your are writing for some gee whiz GPU CUDA platform or some such). I'll be waiting for some c...