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Originally Posted by Jarvamundo
ahh yes, tis why we experiment... Remember the DPF uses the *natural* instabilities of plasma... Princeton and the Tokamak boys are using mechanical and very un-natural ways of confining plasma. Lerner essentially dumps a capacitor bank into the plasma, and 'it' kinks up and does it's own thing, although recently adding an initial m-field to the process.
One fusion solution uses the natural instabilities (which match the morphology of celestial objects)
One does not... and is a very expensive metal doughnut.
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I should be a little clearer again from Wiki ..
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Thus if we have a peak current of 180 kA we require an anode radius of 10 mm with a deuterium fill pressure of 4 Torr (530 Pa). The length of the anode has then to be matched to the risetime of the capacitor current in order to allow an average axial transit speed of the current sheath of just over 50 mm/μs. Thus a capacitor risetime of 3 μs requires a matched anode length of 160 mm.
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My point is that in order to generate one of these plasmoids, the design of the DPF machine is
extremely specific. In order to generate one of these puppies, requires
very fine tolerances in the design of the equipment. How can this possibly occur in the centre of a galaxy ?
I agree with the last statement.
Moving on though ..
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On 26 February 2008, THEMIS probes were able to determine, for the first time, the triggering event for the onset of magnetospheric substorms. Two of the five probes, positioned approximately one third the distance to the Moon, measured events suggesting a magnetic reconnection event 96 seconds prior to Auroral intensification. Dr. Vassilis Angelopoulos of the University of California, Los Angeles, who is the principal investigator for the THEMIS mission, claimed, "Our data show clearly and for the first time that magnetic reconnection is the trigger."
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??
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Originally Posted by Jarvamundo
Do you have a solution for the Gaede fringes?
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I'm sorry 'brother' .. I couldn't stop laughing enough to take him seriously !
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Originally Posted by Jarvamundo
Close.. bit of a stretch tho... invoking alot of ifs... i'd like to see a magnetic reconnection event in the lab first... If they actually make a magnetic monopole, they will make a packet of cash... it would change our economy.... I aint holding my breath tho.
Re: corona... I'm still with the 14yr old... Hot on the outside, warm on the in... colder underneath... It illogical to have a sustained fusion-furnace underneath "powering the whole thing". I'm just hanging around here to see what other gold comes from this young oracle.
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Sorry Alex .. I haven't seen anyone claiming that 'this is what powers the whole thing'. Let it go, man .. (everyone else has).
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Originally Posted by Jarvamundo
Other than that, Craig thanks for posting this here, it's clear plasma physics will play a big role in future astronomy... This are great developments, and the radio telescope funding they are after has my support. Our aussie possum Gaensler is leading the charge.
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Yep. We need more solar research. Seems like Solar Probe Plus will be good. Gotta wait until 2015 for launch, though. I don't think anyone here has ever said that space bound plasmas don't have roles to play. The issue seems to be about where they do play and have an impact on things. There's no need to over-generalise here Alex.
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Originally Posted by Jarvamundo
I'll also now have your post to direct Carl and Bojan too when i get grilled about "wires in space".  i know i know, you're only a messenger. |
Gee .. steady on there. I wanted to examine what questions/approaches mainstream plasma physicists were up to, independently of your views (we've had plenty of this already).
You hijacked my nice, quiet thread (as predicted).
I'm not interested in joining your 'dark-side-of-the-force' perspective.
I do enjoy the conversation, however.
Cheers