Search found 3066 matches
Re: EM Drive
Well, 45 mN/W is not huge, is totally insane if true. It's 3 orders of magnitude better than an ion thruster and without fuel. I mean, there is no word to describe the changes this will bring IF true. I am quite skeptical due to lack of any real information and the excessive use of the word "quantum...
- Sat Mar 11, 2023 7:50 am
- Forum: News
- Topic: Lawaranceville E-Newsletter
- Replies: 880
- Views: 538093
Re: Lawaranceville E-Newsletter
In truth I have the impression that they lost the experimental drive that they had in the start few years ago.
Maybe they need to bring into the team some new minds with fresher ideas and someone solely focused on solving all those smaller issues that are bogging them down.....
Maybe they need to bring into the team some new minds with fresher ideas and someone solely focused on solving all those smaller issues that are bogging them down.....
- Thu Mar 09, 2023 12:33 pm
- Forum: News
- Topic: Superconductivity at low temperature and low pressure
- Replies: 2
- Views: 1574
Re: Superconductivity at low temperature and low pressure
Impressive.
Lately there are so many interconnected technological singularities that are finally inching closer and closer to success that is hard to keep pace with all of them.
Lately there are so many interconnected technological singularities that are finally inching closer and closer to success that is hard to keep pace with all of them.
- Wed Mar 08, 2023 4:42 pm
- Forum: News
- Topic: TAE completes first tests of hydrogen-boron fuel cycle
- Replies: 11
- Views: 2088
Re: TAE completes first tests of hydrogen-boron fuel cycle
FWIW isn’t their power plant design enormous? Like O(~100m)? 1 Mw/m^3 might be Ok. Though in any case I don’t see that having much to do with the paper’s modelling assumptions. Well, considering the importance of the finding it will probably be anyhow a good time to revise also their planned plant ...
- Wed Mar 08, 2023 4:39 pm
- Forum: News
- Topic: TAE completes first tests of hydrogen-boron fuel cycle
- Replies: 11
- Views: 2088
Re: TAE completes first tests of hydrogen-boron fuel cycle
Has anyone access to that Nature article ? A rough idea of the main points would be appreciated. The paper is public, you can see it HERE . By the way, if TAE think they can reach 200 MeV in steady state, wouldn't it be easier with pulsed machines, like Helion's. Helion is using a different approac...
- Tue Mar 07, 2023 11:57 am
- Forum: News
- Topic: TAE completes first tests of hydrogen-boron fuel cycle
- Replies: 11
- Views: 2088
Re: TAE completes first tests of hydrogen-boron fuel cycle
Any clue how much hotter you might make p11b in the same trap as DT? Interesting paper. I am wondering what densities TAE is going to use. We need to consider that this paper was just a theoretical one that served as the framework for the actual experimental set up, and the cited "Shot number" in t...
- Mon Mar 06, 2023 3:45 pm
- Forum: News
- Topic: TAE completes first tests of hydrogen-boron fuel cycle
- Replies: 11
- Views: 2088
Re: TAE completes first tests of hydrogen-boron fuel cycle
Here is a link to the article on raised p11B fusion rates (from 2019) - up 30%. 'Fraid I don't have access to the full text to know what that really means. https://iopscience.iop.org/article/10.1088/1741-4326/ab1a60 This paper is available on TAE website just click HERE . The summary of the article...
- Sat Mar 04, 2023 7:45 pm
- Forum: News
- Topic: TAE completes first tests of hydrogen-boron fuel cycle
- Replies: 11
- Views: 2088
Re: TAE completes first tests of hydrogen-boron fuel cycle
It is worth noting that the result was achieved on the "Large Helical Device" (LHD) which is a Stellarator type of machine like the W7-X! The LHD has been developed to reduce plasma vortex turbulence diffusion, while the W7-X has been developed to reduce ions-electrons collisional diffusion, and the...
- Mon Feb 27, 2023 12:02 pm
- Forum: Theory
- Topic: Stellarators with Permanent Magnets
- Replies: 21
- Views: 11389
Re: Stellarators with Permanent Magnets
--- permanent magnets have a reactive behavior so their response to reach a new equilibrium position is slower than a coiled superconductor --- I wonder if different permanent magnetic materials have different response times ? I might also wonder if different material superconductors also have diff...
- Mon Feb 27, 2023 11:55 am
- Forum: Theory
- Topic: Stellarators with Permanent Magnets
- Replies: 21
- Views: 11389
Re: Stellarators with Permanent Magnets
Which begs a question, due to my interest in permanent magnetic gearing, how much flux energy will a permanent magnet lose over time ? That depends on the use (and abuse) you do of the magnet. While there is no general formula to calculate it, you might consider that a modern magnet in isolated env...
- Fri Feb 24, 2023 7:09 am
- Forum: News
- Topic: Wendelstein 7-X
- Replies: 56
- Views: 80693
Re: Wendelstein 7-X
There is still lot of road ahead before it can express its full potential, but the results so far are way better than expected. It's a beautiful piece of engineering art. Well it is German. So were the Tiger 2 and the V 2. Both were useless. From a practical point of view you are right, WX-7 will i...
- Thu Feb 23, 2023 8:51 pm
- Forum: News
- Topic: Wendelstein 7-X
- Replies: 56
- Views: 80693
Re: Wendelstein 7-X
There is still lot of road ahead before it can express its full potential, but the results so far are way better than expected.
It's a beautiful piece of engineering art.
It's a beautiful piece of engineering art.
- Fri Feb 03, 2023 9:28 pm
- Forum: News
- Topic: NT-Tao (Israeli fusion company)
- Replies: 4
- Views: 1930
Re: NT-Tao (Israeli fusion company)
Without giving away all of its secrets, NT-Tao said it is taking the best of Tokamak technology and the best of stellarator technology and are refining those technologies to make a new design that will operate at significantly higher plasma density. The machine can heat up the plasma to huge temper...
- Fri Feb 03, 2023 9:06 pm
- Forum: News
- Topic: World-first "impossible" rotating detonation engine fires up
- Replies: 15
- Views: 10094
Re: World-first "impossible" rotating detonation engine fires up
If you can ship it there from the moon in a 5T craft, and return the craft to the moon, it costs 171 T of fuel. Much more interestingly, the same SSTO can now take 40T to LEO instead of 10 with little more total fuel cost. The fuel per tonne to LEO drops 72%. In honor of truth, with the increasing ...
- Wed Feb 01, 2023 12:59 pm
- Forum: News
- Topic: World-first "impossible" rotating detonation engine fires up
- Replies: 15
- Views: 10094
Re: World-first "impossible" rotating detonation engine fires up
That's true and they explain it clearly in the introduction paragraph to their paper.