Search found 145 matches

by TheRadicalModerate
Thu Mar 22, 2012 6:13 am
Forum: General
Topic: Graphine Electrodes for SuperCaps the Easy Way.
Replies: 9
Views: 6358

Another article on this here.

I don't see why this method can't be adapted to deposit graphene directly onto integrated circuits, which ought to be a big fat hairy deal.
by TheRadicalModerate
Thu Mar 22, 2012 6:05 am
Forum: News
Topic: Nuclear fusion simulation shows high-gain energy output
Replies: 4
Views: 4786

I think this article is reporting the same results as this.
by TheRadicalModerate
Fri Feb 10, 2012 5:45 am
Forum: News
Topic: Higher Gain MTF By Monkeying with Pellet Composition
Replies: 6
Views: 4609

Higher Gain MTF By Monkeying with Pellet Composition

Anybody know about this?

http://arstechnica.com/science/news/201 ... icient.ars

http://prl.aps.org/abstract/PRL/v108/i2/e025003

Sure sounds like a lot simpler geometry, and one that could be tested relatively easily.
by TheRadicalModerate
Wed Dec 14, 2011 9:04 pm
Forum: News
Topic: Stratolaunch, a new and affordable space launch system.
Replies: 23
Views: 11106

The other thing they're doing is leveraging a lot of other proven or semi-proven components. Scaled Composites is doing the aircraft (presumably leveraging some of the White Knight tech), they're using off-the-shelf turbofans, and they're buying SpaceX motors, if not boosters. Frankly, the thing tha...
by TheRadicalModerate
Wed Dec 14, 2011 7:20 pm
Forum: News
Topic: This Ought to Be Useful for Plasma Diagnostics
Replies: 1
Views: 2415

This Ought to Be Useful for Plasma Diagnostics

http://www.technologyreview.com/computing/39329/?p1=A2

I don't know about the limitations of streak cameras in high-energy environments, but this looks like an interesting diagnostic tool for a whole bunch of things, including plasmas.
by TheRadicalModerate
Wed Dec 14, 2011 7:09 pm
Forum: News
Topic: Stratolaunch, a new and affordable space launch system.
Replies: 23
Views: 11106

I do not know. It looks cool, but I remember reading cost analysis by SpaceX stating that these combined "air breathing winged first stage then rocket" are not really very effective. Their argument seems to be that airstrip ops are a lot faster and cheaper to turn around than launch pad ops. They'r...
by TheRadicalModerate
Wed Mar 16, 2011 3:59 pm
Forum: General
Topic: Nuclear Reactors Hit By Earthquake In Japan
Replies: 293
Views: 129458

Just read that the story about diesel back-ups getting innundated was cover story to give some hope that cooling circuits could be got back on line ... yes the back-ups were innundated but that wasn't the reason cooling circuits weren't ever coming back online. The real reason was that when the tsu...
by TheRadicalModerate
Mon Mar 14, 2011 6:42 pm
Forum: General
Topic: Nuclear Reactors Hit By Earthquake In Japan
Replies: 293
Views: 129458

Now they've had an LOC at reactor unit 2 as well: http://www.world-nuclear-news.org/RS_Loss_of_coolant_at_Fukushima_Daiichi_2_1403113.html Serious damage to the reactor core of Fukushima Daiichi 2 seems likely after coolant was apparently lost for a period. Tokyo Electric Power Company announced ear...
by TheRadicalModerate
Tue Jan 18, 2011 5:53 pm
Forum: News
Topic: Critique of small fusion projects.
Replies: 2
Views: 2814

Interesting thread. However, it would be nice for somebody to disentangle the interesting science from the aspects that make for good policy. It seems like there has been a recent acceleration in the production of interesting results in magnetically confined plasmas, and it's certainly possible that...
by TheRadicalModerate
Sun Sep 05, 2010 4:38 am
Forum: News
Topic: NASA Planning Mission to Visit the Sun
Replies: 15
Views: 6161

Re: NASA Planning Mission to Visit the Sun

Since NASA has never sent any vehicle this close to Earth's Sun, the craft will have to be outfitted with a special shield designed to withstand radiation and temperatures exceeding 2550 degrees Fahrenheit. A spokesman for NASA said scientists will depend on simulations to guarantee that the probe ...
by TheRadicalModerate
Wed Aug 25, 2010 6:57 pm
Forum: News
Topic: Tri Alpha Gets $50 million
Replies: 45
Views: 14073

Ah, got it. I was thinking that the B-field was a sheath, but it's not. It's diamagnetically rejected from the center of the machine, but the mostly transverse B-field gets stronger and stronger the closer it gets to the magrid coils. So the real question is what the condition is to avoid the fusion...
by TheRadicalModerate
Tue Aug 24, 2010 4:28 pm
Forum: News
Topic: Tri Alpha Gets $50 million
Replies: 45
Views: 14073

I don't have a link either. But my memory is tolerably good: alphas . Think about it: Polywell needs about 100,000 passes of electrons (probably a similar number for ions) to make the device deliver net energy. So from that alone the odds that "1,000" passes is about fuel is rather low. This doesn'...
by TheRadicalModerate
Mon Mar 08, 2010 9:03 pm
Forum: News
Topic: Breeding
Replies: 4
Views: 1888

The Dittmar paper you cited in this thread had a pretty good overview of the H3 breeding problem.
by TheRadicalModerate
Tue Nov 24, 2009 9:04 pm
Forum: News
Topic: Fusion Will Never Work
Replies: 83
Views: 30616

Shouldn't fusion products have enough energy that, even if they hit the B-field perfectly perpendicularly, that they have an effectively infinite gyroradius and punch right through? And, if they hit a cusp, won't the particle simply go through the cusp and break free as the field lines bend back beh...