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I had an idea and some very smart people follow me, so I want someone to tell me why this won’t work:

N body gravitational simulation is hard because of the scaling problem.

So, whenever I’ve built gravity simulation in the past, I’ve used a quadtree and only had bodies in a small search window affect one another. This is, as I understand it, a very common implementation.

But…

What if you used graph theory to establish a more coarse-grained quadtree based on local cliques? Every body could then apply the (theoretically much smaller number of) forces from all of the cliques scaled by their clique’s distance.

Does that work? Is there some obvious overhead I’m not thinking of?

I know it wouldn’t be _perfectly_ accurate… but it _feels_ like it’d be close, at least if you look at the system in aggregate?

in reply to b4ux1t3 #1️⃣

I have half formed ideas of maybe ignoring positional distance and keeping track of “classes” of objects, where objects are disproportionately affected by objects in a larger class and completely unaffected by something that’s two or three classes smaller, but that feels like it’d be a memory hog nightmare.
in reply to b4ux1t3 #1️⃣

And like, even comparing the classes of two objects in a large system would end up being really compute intensive. Even without the positional changes.
Questa voce è stata modificata (1 settimana fa)



TL;DR: Spellbook has launched an Academic Partnership Program, providing law students and faculty in North America free access to its AI-driven contracting software, enhancing legal education with technology. artificiallawyer.com/2025/09/0… #law #tech #legaltech ⚖️ 🤖 #autosum

Technology Channel reshared this.




openSUSE is extending support [1] for Leap 15.6 (a release which, three years ago, was not even planned to happen [2]):

1. distrowatch.com/dwres.php?reso…

2. distrowatch.com/dwres.php?reso…



The Abnormal Returns from Canadian Asset Allocation ETFs

Sensitive content



Meet us at the IFA: Day 1: Say hi to our comms team Veronika & Katharina and our partners SHIFT.

🤫 Curious about the result of our collaboration with SHIFT?

👉 ifa-berlin.com

#IFA25

in reply to Murena - choose freedom!

I am concerned about the current state of CalyxOS and about rumors that Google starts to leverage market entry barriers for CustomRom and App developers. I would love to hear your opinion regarding the future of /e/os and its sustainability
in reply to Murena - choose freedom!

Today I testet e/OS with Shiftphone 8.1... second time ... ahe same lot of bugs. Partners?
I


Amiga PSU Fixes: Two Dead Bricks Restored with Smart Troubleshooting
#Amiga #RetroRepair #PSU #Commodore #Electronics #A600 #GadgetUK #SMPS
theoasisbbs.com/amiga-psu-fixe…


Plexus, our Android compatibility app, just dropped an update!

- Android 16 support
- New list view customization options
- Search results now sort properly
- See when ratings were actually submitted
- More languages thanks to you all!

Plexus is making it easy for people to migrate away from Google, allowing you all to contribute which apps do/don't work on custom operating systems. Get it for free and start contributing to help people move away from Google: plexus.techlore.tech



all justices of mexico’s supreme court now aligned with ruling morena party, as was the intention of president amlo’s/sheinbaum’s judicial reform.

one less check and balance in a major democracy.





so there's the fedi bias in action ;p

interesting results and responses! Fun to see the wide range of ways that folks find out about the project

how do you think we could improve when it comes to outreach and attracting new people to the community?
social.treehouse.systems/@post…


How did you learn about postmarketOS?

#LinuxMobile


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Les occidentaux en soutien militaire à l'Ukraine pour une paix encore hypothétique • FRANCE 24


Le président russe Vladimir Poutine a menacé vendredi les alliés de Kiev de cibler toute force occidentale déployée en Ukraine, au lendemain d'une réunion à Paris consacrée aux garanties de sécurité dans le cadre d'un hypothétique cessez-le-feu. Décryptage avec notre invité, Claude Blanchemaison, ancien ambassadeur de France en Russie entre 2000 et 2003.
#Ukraine #Russie #UE

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🌍 Retrouvez toute l’actualité internationale sur notre site : france24.com/fr/
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Rocket Fuel multi-effect plugin by Lunatic Audio on sale at 70% OFF rekkerd.org/rocket-fuel-multi-…

#AAX #AU #LunaticAudio #MultiFx #Sale #VST #VSTBuzz



Tag des offenen Rechenzentrums am 7. November 2025

Wer ein Rechenzentrum von innen sehen will, sollte sich den 7.11.2025 vormerken. 2024 waren 26 Rechenzentren in 16 deutschen Städten dabei.

heise.de/news/Tag-des-offenen-…

#IT #Rechenzentrum #Server #news

in reply to c't Magazin

Dass in den Rechenzentren allerdings, wie als Titelbild für den Heise-Artikel verwendet, eine #Zuse Z22 oder Z23 steht, ist eher nicht zu erwarten... die sieht mal eher z.B. am 25. Oktober bei der langen Nacht der Wissenschaften bei der ISER an der #FAU in #Erlangen (mit etwas Glück auch im Betrieb).

nacht-der-wissenschaften.de
iser.wisski.data.fau.de




Reminder that with the notable exception of covid, Donald Trump has never been president when the economy is bad. And it's a lot easier for voters to excuse his bigoted buffoonery when they feel okay about their material conditions.

JonChevreau reshared this.



Survival (t)

Zach lived off berries during the Winter. He had enough foresight to know he wasn't going to get out of the mountains any time soon because of two broken legs. No one was looking for him. It wasn't unusual for him to hike for several months at a time and eat off what he found growing wild. This Winter had been mild and there were a lot of animals out that normally wouldn't be mobile...

Alder Creek Grove, Tulare County, California 2012
#photography
flic.kr/p/23bAN3q




In 2007 success kid become viral. Every forum, social media and proper meme user saw it on multiple occasions in a day. With the easier access to internet the viral memes became more and more common.



My new book of cartoons is out soon. I am bringing it to SPX/BETHESDA TORONTO, NEW YORK, CHICAGO, MONTREAL and QUEBEC CITY in the next two weeks. Visit www.tomgauld.com for more details and preorder links!

v_i_o_l_a reshared this.




theguardian.com/commentisfree/…. Free speech under a "Labour" #Government - this cartoon needs no further comment from me. (Save us from #freespeech under the #Tories or #ReformUK, too!)


»Huawei launches MatePad Mini with calling capability, thinner than Apple’s iPad mini« technode.com/2025/09/05/huawei… #China #Tech #ChinaTech #Technews


Un robot litière ?! #ifa #tech #litiere #chat #shorts


À DÉCOUVRIR AUSSI :
• Notre émission tech “Unlock” : youtube.com/@unlocktalk
• Notre chaîne dédiée à la voiture électrique : youtube.com/@Survolt%C3%A9s
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TRANSPARENCE :
✅ VIDÉO NON SPONSORISÉE
Nous ne sommes pas rémunérés ou sponsorisés par les constructeurs pour vous présenter ces produits. Nos choix de tests et nos avis reposent uniquement sur des critères éditoriaux et journalistiques.
Nous remercions toutefois les marques qui nous fournissent, sans contrepartie financière, certains appareils afin de réaliser nos tests dans les meilleures conditions. Cela nous permet de couvrir plus largement l’actualité et de vous proposer des analyses complètes et fiables. 🙏

👍 Un like si cette vidéo vous a aidé
📝 Vos questions en commentaire
🔔 Abonnez-vous pour ne rien manquer de l’actu tech



Kindly explaining to a coworker, who's complaining about another coworker who's out sick again:

Some people have chronic illnesses.
Yes, young people too.
It's not fun for them either.

Oblomov reshared this.

in reply to dillyd

I don't want to wish harm on people, but some healthy people will never understand until it finally hits them.

reshared this

in reply to dillyd

@DrSuzanne The real fun is all the people who try to find that quick fix for you, using that dreaded preface "But if you just . . ."

I've been told that all I need to do is "just" consume more antioxidants, go vegan, avoid nightshade veggies, try gin-soaked raisins, go macrobiotic, etc. etc. People seem very uncomfortable with the chronic part, and especially the fact that it only gets worse, not better, for most of us. We must be doing something wrong, in their eyes. It's nothing I did or did not do that led me here. Autoimmune disease and chronic illnesses run in my family, and have done so for generations. All it needed to kick off was a spark, a virus in my case: severely reactivated Epstein Barr.

I hope that people who are perfectly healthy have some idea of how golden that is.

in reply to dillyd

@kimlockhartga @DrSuzanne

Plus one for me. Completely agree. I’m sorry you have to experience that in addition to your health challenges.

I experience chronic migraines, and it’s amazing how many people seem to know more about migraine “cures” than the highly specialized care I’ve been receiving from my neurologist over the years. 🤷‍♀️

in reply to dillyd

@kimlockhartga @DrSuzanne
I was so horrified when my toddler was in my shopping cart and women would stop me in Whole Foods. (This was when there was only one Whole Foods... in Austin, Texas) .They would say your child is squinting. You should give him vitamin A pills. Little did I know that was just the beginning. He has a rare retinal disorder. AND vitamin is not always a good idea!
in reply to dillyd

@kimlockhartga @DrSuzanne
Exactly.... 10 years later, I was dealing with the well meaning saying weird things about children with fatal food allergies, sigh.
in reply to Kim Possible

@kimlockhartga @mtechman @DrSuzanne
I know this example is less serious than allergy-denying, but I once had a boss who said that mosquito bites are psychological.
in reply to dillyd

@kimlockhartga @DrSuzanne
Wait, you mean all this time? I could've had a boss who helped me get over my totally legit fear of tickborne diseases.??
in reply to Suzanne she/her

@DrSuzanne @kimlockhartga
Yes, that's exactly what a big name medical expert said in cover article for consumer reports a few years ago..... He said there's more information coming about ticks from the research and it's all bad but no worries. Just remember it's all imaginary.
in reply to Kim Possible

@kimlockhartga I can't stop thinking about someone ordering a martini with raisins now 😫
in reply to Mike

@sunumbral ha ha ha! This is the best response!

The oddest thing? Weird off-label stuff like the treatment for malaria, can actually help.

@Mike
in reply to dillyd

like many other privileges, good health is invisible to the people who have it.

dillyd reshared this.

in reply to dillyd

We are renting our healthy body for some period of time. We never own one outright.

dillyd reshared this.

in reply to dillyd

Some of them won’t understand it then either, see: my mother.

She has an autoimmune disorder which is currently in remission, but has absolutely no grace for my father, who’s dealing with the early stages of dementia and back issues or me, who has a different autoimmune disorder.

“I pushed through it and I’m fine.” For now.

in reply to dillyd

Thank you for doing this 🩷 We need more people out there who are understanding and willing to explain to those who don’t think beyond the superficial.
Also this is very nicely explained 🩷
Thank you 🩷


BirdLife Suomi | Auta turvaamaan luonnonsuojelu EU:ssa

Tämmönen pitäis allekirjoittaa, jos et ole vielä ehtinyt! Ei anneta pitkään rakennetun ympäristönsuojelulainsäädännön hävitä hiljaisuudessa.

#luonnonsuojelu #EU #luontokato #lainsäädäntö #kysely

birdlife.fi/ala-anna-eun-heike…

Questa voce è stata modificata (1 settimana fa)

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¡Bienvenid@s a l@s usuari@s nuev@s de rebel.ar !

Creo que la mayoría fueron atraíd@s por el spameo de @chiptecno



globalist.it/world/2025/09/05/…

Assassini



El sábado formó parte de la presentación de un libro de historia argentina hecha poema deforme >< invitados!



Has the British Press managed to force the Working Class Lady to resign yet?

If you're following American Politics, you'll see how Trump is using the same method to get rid of Black Women he doesn't want in power, claiming 'mortgage fraud' while letting his male colleagues get away with exactly the same thing.

Yes, the British Press would use the same tactics as Trump, are you new to his country?

#UKPOL #UKPOLITICS #AngelaRayner #Classism #Journalism #UKPress



Local barber promotes "return of the mullet" shock

It was only a matter of time after the unfortunate '70s-80s mustache revival

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Loguru is one of the popular logging libraries, many say it’s what Python’s default logging should have been. If you’d like to learn how to use it, check out this article by Ayooluwa Isaiah. He covered everything from Loguru’s philosophy to how you can bring your Python logs into an observability pipeline.

dash0.com/guides/python-loggin…

#python #Programming #PythonProgramming #ai #ml #MachineLearning #SoftwareDevelopment #WebDevelopment #TechNews #OpenSource #DataEngineering



Am satisfied by pac3..🔥🔥
Check out

youtu.be/RLX-nv4TpWE?si=96LsY9…

in reply to Itsdess

🤖 Tracking strings detected and removed!

🔗 Clean URL(s):
youtu.be/RLX-nv4TpWE

❌ Removed parts:
?si=96LsY9AktEo9v1sr



“In an election held in July and August, more than 97 percent of workers at Yosemite and Sequoia & Kings Canyon national parks voted in support of organizing a union, according to a statement from the National Federation of Federal Employees. The Federal Labor Relations Authority certified the results last week.” ✊

#Politics #USPolitics #Unionization #UnionizeNationalParks #WorkersRights #WorkingClassPolitics #LaborUnions #TradeUnions #UnionizeAmerica

motherjones.com/politics/2025/…

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BREAKING: Tesla dangles a $1 TRILLION pay package for @elonmusk — the biggest in corporate history. Targets: $8.5T valuation, robotaxis, AI dominance. Nail them all, and Musk could rewrite the billionaire playbook. 🚀
reuters.com/business/autos-tra… #press