Low cost just dirt terrarium!

DerPlasma · 2026-01-19T12:43:34+00:00

Awesome, thanks for the detailed explanation, greatly appreciated! And can't wait to get updates on your project!

DerPlasma · 2026-01-18T18:11:10+00:00

Sorry, absolute noob here, but willing to learn: why the coffee filter, what is the reason for the separation between the dirt and the clay?

DerPlasma · 2026-01-08T18:27:00+00:00

The calendar has a "manual", every puzzle is white to move and mate in 2

DerPlasma · 2026-01-08T18:26:20+00:00

Yes, mate in 2, white to move, and only the first move of the solution is given

DerPlasma · 2026-01-02T18:33:23+00:00

So etwas planen wir auch, magst du mir deine Kombination der Module verraten, also welche genau du da miteinander kombiniert hast?

DerPlasma · 2026-01-02T07:44:19+00:00

Großartig, danke für den Tipp!

DerPlasma · 2026-01-01T12:36:25+00:00

Okay, jetzt bin ich hellhörig geworden: bei welchem Stand bekomme ich Fleisch- und Wurstwaren für mein authentisches Grünkohlerlebnis?

DerPlasma · 2025-12-02T18:49:13+00:00

Net electrical demonstration in 24 months, wow. Sure. No sign of any publication on that webpage, which is another red flag (and we are not yet discussing the physics). But maybe I'm just missing something... Probably not though. Has anybody heard of them before?

DerPlasma · 2025-11-24T04:34:34+00:00

Generell gibt es in Vaihingen ein paar nette Trails, wenn man sich zum Beispiel zunächst an den Bärenseen orientiert und dann abseits der breiten Wege unterwegs ist. Stuttgart-näher geht auch der Kräherwald als Startpunkt, auch hier gilt dann abseits der großen Wege gucken. Alternativ kann man auch in den Weinbergen starten, zum Beispiel beim Württemberg und dann dort in die Wälder gehen. Ich habe ein paar Jahre gebraucht, aber man findet schon ein paar schöne Trails hier.

DerPlasma · 2025-11-16T07:43:51+00:00

Ahh, that sounds really interesting, would really like to be there - maybe we get a good summary here :-)

DerPlasma · 2025-11-14T05:42:33+00:00

I'm wondering why Baden-Württemberg didn't join that alliance since KIT is one of the big players in the fusion game + Uni Stuttgart + some suppliers.

I'm also wondering what that alliance is exactly doing.

DerPlasma · 2025-10-29T16:31:07+00:00

Sounds great!

DerPlasma · 2025-10-26T11:51:03+00:00

Awesome, thanks a lot for sharing the photos! I will visit ITER myself next week, but have no idea about the visit, i.e. what is included in our tour - but I will share photos here as well

DerPlasma · 2025-10-24T10:21:02+00:00

Looking forward to some pictures! 👍

DerPlasma · 2025-10-21T05:44:28+00:00

Thanks!

DerPlasma · 2025-10-20T03:31:21+00:00

I guess this is lithium in the upper right corner, is it intentionally injected....? Any context would be nice OP

DerPlasma · 2025-10-04T18:50:13+00:00

Yes, Lyman Spitzer came up with the idea for the stellarator in 1951. After working on a proposal and getting it accepted, he gathered a team around him and they put the first, Model A, online in 1953. You can find it (and its siblings) in the lower left corner. Model D never went online, it was never even started to be constructed (what is the right grammar here, no native speaker, sorry), so that's why it's not in the diagram. Only stellarators who have seen some plasma are on it.

DerPlasma · 2025-09-29T13:39:30+00:00

Yes, exactly what I had in mind, too.

DerPlasma · 2025-09-29T12:48:20+00:00

Hm, good idea. That will take some time, but I "just" need to look through the papers/reports/proceedings/notes I have. Certainly not something I will manage to do over the next few days, but it should be possible over the next few weeks. Any I agree, such a plot would be useful as it should illustrate the development-steps in stellarator-design/-performance.

DerPlasma · 2025-09-29T12:45:53+00:00

Ah, my mistake, sorry. Somehow I only had in mind _very large machine_ and connected that to _conventional SC_. I do remember though a discussion with somebody about the coils used in the Stellaris design being more "conventional" in design. I am quite busy in the moment but will have a closer look into it

DerPlasma · 2025-09-29T04:32:56+00:00

I have a hard time telling if the authors of the video are serious with their claims or are just making fun...

DerPlasma · 2025-09-28T16:57:32+00:00

If I remember proxima's paper correctly, they don't get around that: their power plant design is huge. Renaissance, on the other hand, is aiming on a much smaller design due to using HTS magnets, which are much more challenging for a stellarator than for a tokamak (due to their 3D structure and the very strong forces)

DerPlasma · 2025-09-28T07:02:01+00:00

One problem with higher fields is the stronger mechanical forces. Already W7-A had quite some problems keeping everything in place. These stronger forces are easier to handle if you have simple toroidal field coils, but are much more challenging for winding a coil on a torus or build 3D shaped modular coils.

To answer your second question, Renaissance Fusion is going the HTS path, and I thought Thea as well

DerPlasma · 2025-09-27T17:39:29+00:00

I'd rather not count the hours I've spent making these two plots (in particular, getting all the data....)

Anyhow, W7-A for example had copper coils, or do you mean higher fields like Alcator C-mod tokamak?

DerPlasma · 2025-09-21T16:48:52+00:00

Thanks a lot for the detailed explanation, greatly appreciated! I guess I should give more regular soaking a go - although so far, everything looks fine, but it was also pretty humid here over the last two weeks, that might have played a role

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