Talk-Polywell.org

Imagine breakeven is achieved with a polywell. How energy is extracted from the fusion reactions occurring in the middle? I can't find in the literature how Bussard imagined to do it. I think no heat exchanger/steam turbine, more probably direct energy conversion. But how? Long channels with electro...

I have some questions, that maybe Dan Tibbets or Thomas Ligon could answer. The plasma inside the Polywell is said to be nonthermal, with T_e >> T_i It is also a magnetized plasma, with the electron gyrofrequency superior to the electron collision rate: ω_ce > ν_coll 1/ What is the magnetic Reynolds...

I don't find the event scheduled on UW Madison web site. Anyone?
BTW Dr. Park gave the same talk a few days ago at UC Irvine:
http://www.physics.uci.edu/seminar/spec ... -high-beta

Absolutely. For example this render was already there when Dr. White gave his talk at the SpaceVision 2013 conference back in November 2013:
http://youtu.be/9M8yht_ofHc?t=42m
Just scroll up to 42:00
The whole web suddenly awakens now for something that has been there for months. Weird.

I don't know however, whether the current design includes active cooling… I am pretty sure Jim never used active cooling. It's doable but a bit tricky since experiments are done in vacuum (if you use liquid nitrogen for example, it already boils at standard atmospheric pressure so I would expect it...

If you are talking about the "fusion driven rocket" is supposed to have a gain of up to 500. 500 would reduce the trip time to mars to 30 days. The "fusion engine" is actually the (maybe a bit confusing) name of their terrestrial fusion reactor for electricity generation. It has a lower gain, but i...

well, you know about John Slough propulsion scheme, I am not sure why you think Musk would then wait for development of land based commercial fusion reactors, instead of going directly to fusion techs specifically designed for space propulsion. Is John Slough fusion engine intended to achieve break...

Musk isn't even interested in fission rockets so I doubt he'd take a real look at any advanced propulsion. It's hard to make predictions though, especially of the future. :-) Musk is interested in colonizing Mars and the Solar System. I am sure he will be interested in anything that can help achiev...

Hi, I'm following this thread carefully. If I understood the mass fluctuation hypothesis, I'm not sure to properly get the fact that such a fluctuation could reach the point to which the mass would become negative. if mass m becomes negative mass m̄ then its energy E becomes negative energy Ē = m̄ c...

Hello, this is my first post on this board which I often read. I second hanelyp's question. Sandia's Z machine injected 18 million amps in its wire-array Z pinch, imploded into an ultra dense, ultra hot plasma on axis (about one-millimeter diameter). It successor ZR triggers 26 million amps, and sti...