Talk-Polywell.org

Looking at the picture of the operating WB7 at http://www.emc2fusion.org/ It looks like the coils are extremely close to the chamber wall. I can't see much room for electrons to recirculate outside the WB. How far outside should we expect them to travel? Some threads say meters. Some say the recircu...

Cool.
How hard a vacuum are they good for?

MSimon- then a reactor 10 to 15 ft across (~3 to 4 m) should work for a 100 MW direct conversion machine. Good because one consideration is that standard wide load permits here in the west only go up to 14 ft. Anything wider than that is problematical even for railroads. Back east it is much worse....

Thank You All for your supportive response. :D :D :D As you can see I’ve been working on this for a while. 10 points to the first person who figures out what I’m procrastinating from. MSimon – Review your Maxwell. You cannot have all north poles facing in. You have to have some south poles on that c...

Good. Thank You. The shape of the virtual coils in any configuration with circular toroidal coils is a funny concave shape that I see as a problem. Now as I see it, the confinement of any individual mirror is independent of the field direction (in or out). So combine this with the MPG concept. I wou...

Impressive demonstration of the instability of concave fields.

After seeing that I can't imagine how can they possibly make a Tokamak work.

In a PW all those mass ejections become mass injections.

MgB2 has the advantage of ductility. These new ones being oxide based may have fabrication problems similar to CuO based materials. That would be a snag. I'm not sure how ductile it is in service. Their process first forms the wire (with the powdered MgB2 inside) into the coil then they sinter it a...

Has anyone here run the numbers on the heat flow through the copper and across the solid/liquid interface to the water/ln2 ? I expect there to be a maximum copper thickness we can use. i.e. a maximum distance we can expect to have the heat travel. Even a ballpark number for now would be useful in co...

I've kept a good job because I had the guts to tell the customer the truth when everyone else was afraid to. Yes, the truth is important. But arguing against anthropogenic CO2 heating is kind of like arguing against evolution. Sea level rise is measureable etc. etc. but you can't prove it one way or...

I would feel more confident if we moved at least as slowly and carefully with the planetary life support system as with high voltage electronics. Climate predicting codes do not inspire my confidence. As you point out we don’t even know the signs of some of the feedback terms and the lag times are d...

The Bitter design has a lot to recommend it in terms of mechanical ruggedness. The windings are held in place with bolts. The dead space is also useful as a header for coolant and for gas feed piping. I wonder. Would a Bitter coil work in a cone shape? Say with the cone's vertex at the reactor cent...

This was not intended as an actual configuration. Just a concept visualization. Yes AutoCAD does nice rendering. This is just its default mode. The flows actually do all line up nicely on all coils. I just double checked them. The coils are on the vertexes of a cube aligned with the center. I'm pret...

We know that humans can survive an ice age. We don't know that humans can survive a runaway greenhouse effect. I would rather try the experiment first on Mars not on my own life support system. If it turns out we need to reverse an ice age, well hey it might be good practice for Venus. An advanced e...

The magnets can't ALL point in because we don't have magnetic monopoles available. Half the flux through the polyhedral surface must be out and half must be in. (ref. Maxwell) Here is how I see Dr. Bussard's original thought process. He started with a 2 coil cusp machine. It has stability, but is ha...

Yes,Smooth is essential. The concentric tubes concept was intended to have the largest tube be the same od as your wedges. The oval can be rolled further to make the pie sections. The pie sections could also be made from copper strip (say 25mm wide by 2mm thick in 1000' rolls) Rolled into a U shape ...