#stellarator

[literallymechanical]

A section of NCSX, a fusion reactor so ambitious and advanced for its day that it was cancelled while half-built, in 2008. Each of those massive squiggly copper magnets — of which there were many — had to be held to sub-millimeter precision through many thermal cycles in liquid nitrogen. The vessel is solid inconel. What a beast!

Somebody remind me to write up a more thorough post about the history of stellarators at some point.

[johniac]

SciTech Chronicles. . . . . .May 10th, 2025

[philosophiesde]

Zoomposium with Prof. Dr. Thomas Klinger: "The sun on earth - nuclear fusion as an energy source"

Information about the person and his scientific research work

In another very exciting interview from our Zoomposium theme blog "Energy and Climate", this time we talk to the very well-known German physicist Thomas Klinger , who has been a "Scientific Member" of the Max Planck Society since 2001 and Director of the "#Stellarator Dynamics and Transport" department at the Max Planck Institute for #Plasma Physics in Greifswald. There he heads the very successful "Wendelstein 7-X" project.

Since December 13, 2022, the scientific breakthrough of a team of scientists at the National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory in California has been published in many media outlets:

"A fusion energy of 3.15 megajoules (MJ) was successfully released from a pellet filled with deuterium and tritium, equivalent to 154 percent of the 2.05 MJ of energy consumed by the laser pulse that triggered the explosion." (https://www.ilt.fraunhofer.de/de/presse/pressemitteilungen/2022/12-13-durchbruch-fusionsforschung.html)

In one of my previous essays, "The sun on earth - on nuclear fusion technology" (https://philosophies.de/index.php/2024/01/03/die-sonne-auf-erden/), I had already dealt with the advantages and disadvantages and the technological possibilities of nuclear fusion in general. So now it was time to get first-hand information from a proven expert in this field. I was therefore particularly pleased that Mr. Klinger agreed to take part in this interview to answer our questions about the current state of the art in nuclear fusion technology. The interview can already be seen on our YouTube channel "Zoomposium" under the following link: https://youtu.be/8bNqFmmXebk more at: https://philosophies.de/index.php/2024/04/06/kernfusion-als-energiequelle/

[emthimofnight]

Stellar's first day at school!!

[enterstellars]

honestly mad respect for pope francis cause he used his dying breath to pray for gaza and to shit on jd vance and that’s an inspiring way to go out

[montereybayaquarium]

Join us in celebrating Women's History Month with Ellen, our senior aquarist who does incredible work with sunflower stars at the Aquarium! 🌟

These once-abundant predators played a key role in keeping Monterey Bay kelp forests healthy, but Sea Star Wasting Disease brought them to the brink of extinction. 

We're partnering with amazing organizations like the California Academy of Sciences, Aquarium of the Pacific, Birch Aquarium at Scripps, San Diego Zoo Wildlife Alliance, and the Sunflower Sea Star Lab to bring them back. 

Learn more about our efforts and how we're growing sunflower stars from tiny babies to giant sea stars!

[rythyme]

dev patel really said "i support trans ppls rights....... trans ppls rights to kill bigots with guns and metal pipes and chairs and cool knives'' anyway watch monkey man

[itsthebeastpeddler]

on my bimonthly trip to Silent Hill to buy poly-fil

[cebozcom]

Breakthrough in Fusion Energy: Scientists Create Innovative Nuclear Fusion Device Using Household Magnets | www.ceboz.com

Scientists at the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) have achieved a groundbreaking milestone in fusion energy technology by constructing a novel fusion experiment called MUSE. This innovative device relies on permanent magnets, a departure from traditional electromagnets, potentially revolutionizing the cost-effectiveness of future fusion power plants.

[sevilai]

ƎNA wants YOU to PLAY DREAM BBQ ON STEAM FOR FREE ⚡️NOW⚡️

[elshe]

I’M GONNA EAT THEM ‼️

[literallymechanical]

Tokamaks and stellarators as fusion reactors

Another comparison of the two most promising varieties of fusion reactor, tokamaks and stellarators. I used to work on tokamaks and now I'm doing stellarators and let me tell you. It's been an adjustment.

[why-animals-do-the-thing]

hi, i wanted to ask what you think about those japanese zoo's training exercises were someone dresses up as an animal and pretends to have escaped and all that, are they effective? what do U.S zoo's do to train for things like that?

They look silly, but they're a real emergency drill! They force people to think through how they'd problem-solve in real time and in the physical space, which is a very different experience than just thinking about it.

There's no consistent requirement for emergency drills in the US federal regulations for zoos, but there is a contingency planning one. Facilities licensed by the USDA have to identify and create plans for addressing likely emergencies they may have to deal with, which is everything from like natural disasters to animal escapes. That's all done as paperwork and provided to the government to prove they've done it.

BUT. That doesn't mean that zoos and other animal facilities don't do more planning on their own. Some of the third-party accreditations (it might be all of them but I don't have the docs in front of me to confirm) require regular drills for all types of emergency scenarios.

Now there's a slight problem there - a real escape drill, run fully on grounds with real people and stand-in animal, interferes with the daily operations of the zoo. You might not have to physically shut all the guests into buildings during a practice leopard escape, but you do need them to not get in the way, and you don't want to scare people who think a drill is real, etc. So there's an alternate option.

US zoos frequently run emergency management drills as TTRGPs!

Like, they use a printed scale map of the zoo and roll dice to randomize the situation. This is absolutely recommended as a strategy by the Zoo and Aquariums All Hazard Partnership: there's a whole webpage about it, including instructions for the Drill Master.

There are in-person drills, of course, because you have to practice dealing with these problems in meatspace. But a lot of them are done tabletop! I cannot express the extent of my mirth when I first encountered this in the wild at a conference about a decade ago, when the idea was really taking off. It was Very Serious Zoo People on a Very Serious Topic about preventing Really Bad Things from happening... and then suddenly there was a d20 on the screen.

[caffichai]

It's Foxgirl Friday, so please enjoy Franka and her Liskarm!

[Bluesky]

[emthimofnight]

Omega finds out about Stellar! :)

Rouge did not elaborate past, "Did you hear that Shadow had a baby with Sonic?" and this is what happens LOL