A_A

joined 2 years ago
[–] [email protected] 2 points 18 hours ago (1 children)

(...) quenching supercurrents in a superconducting YBa₂Cu₃O₇ thin disc exposed to an external magnetic field. Supercurrents naturally form to expel magnetic fields from superconductors. "By abruptly disrupting these currents using ultrashort laser pulses, we could generate ultrafast magnetic field steps with rise times of approximately one picosecond (...)

Such a magnetic field (change) will propagate (at the speed of light in vacuum) during that time (10^-12^ s) to a distance of about 0.3 millimeter. So, don't go too far away if you want to see that change happened this fast !

[–] [email protected] 7 points 19 hours ago

inept demagogue has delusion that crashing the economy makes it better ... go figure.

[–] [email protected] 1 points 1 day ago* (last edited 1 day ago)


... depending on which experts' opinions and which definitions : anything between 1 year and 20 years from now.

[–] [email protected] 8 points 2 days ago* (last edited 2 days ago)

Original source:
2025 Mar 07
https://united24media.com/war-in-ukraine/120-fighter-jets-could-patrol-ukraines-skies-under-european-led-plan-6500
The European Sky Shield initiative brings together a coalition of willing nations to deploy 120 European fighter jets over Ukraine, offering real, tangible security guarantees. The plan would establish an Integrated Air Protection Zone (IAPZ) that employs combat air patrols across western Ukraine, shielding critical infrastructure and civilians from Russian missile and drone strikes.

[–] [email protected] 4 points 2 days ago

🐠 😋 🐟

[–] [email protected] 3 points 2 days ago (1 children)

This is to say, russia continues to make territorial gains in Ukraine, but each passing months those gains are smaller and smaller.

[–] [email protected] 3 points 2 days ago* (last edited 2 days ago)

Yes i remember. This is a clear case of propaganda, so, for me, it is easily dismissed.

On top of that, the post is about a video on YouTube ... and i never go on YouTube to watch videos ... and most often, don't watch any videos or television at all.

Thanks anyway for guarding this side of the border, for me and for other Lemmy users.

P.S. : it's nice to see they have a lot of downvotes and no upvotes.

[–] [email protected] 3 points 2 days ago (1 children)

Un poisson d'avril ?

“There is currently no satisfactory alternative equivalent to Starlink technology that can meet the needs of the Circuit Court while also providing sufficient performance,” Quebec Justice Department spokesperson Cathy Chenard said in an email response Monday.

Est-ce que ce supposé courriel était adressé au journal ? ... et pourquoi pas une déclaration publique ? ... et pourquoi pas avoir une référence ? Tout ceci paraît un peu louche.

[–] [email protected] 1 points 3 days ago (2 children)

Carburetor has couch too much high octane russian gasoline.

Thanks for taking the time to write this comment.
Please note that i also have trouble reading and writing in English. For instance, some journal titles i have to read 10 times before, maybe, i am starting to guess their meaning. So i hope my wildest guesses about the meaning of your comment was not too far from your intent 🤣.

[–] [email protected] 2 points 3 days ago

Bravo ! Bien pensé, bien expliqué : j'approuve.

[–] [email protected] 2 points 3 days ago (1 children)

Oui bon, on se comprend, même si nos opinions divergent, on a discuté, bientôt nous allons voter, passe une bonne soirée.

 

cross-posted from: https://lemmy.world/post/26978000

What is "Toastify is awesome”?
https://lemmy.world/post/17198003/10978272


... to fix the problem i simply logged out and logged in again

 

nortvolt ... depends on Chinese suppliers for cathode active material

 

Publié le 5 mars 2025
https://youtu.be/CZmPMA8pyGA
j'en ai transcrit quelques mots ici :

"(...) La menace revient à l'est ... ... Notre génération ne touchera plus les dividendes de la paix : il ne tient qu'à nous que nous enfants récoltent demain les dividendes de nos engagements. Alors nous ferons face.

 

... par exemple, les positions récentes de Macron ou de Bayrou sur des sujets d'actualités internationales
... et présentées sur un site officiel gouvernemental ?

1
Ant mill (en.wikipedia.org)
 

Collective behavior leads to both collective intelligence and collective stupidity. This also applies to artificial intelligence (artificial neurons) and biological neurons (in my opinion).
cross-posted from: https://lemmy.world/post/26059204

An ant mill is an observed phenomenon in which a group of army ants, separated from the main foraging party, lose the pheromone track and begin to follow one another, forming a continuously rotating circle.

 

Best for user experience :User want material that is :

  • newly published, and
  • classified using a hierarchy of methods.

Lemmy has :

  • communities
  • post
  • comments and
  • votes

which constitutes such a hierarchy of classification and engagement tools.

.
Design Flaws + Solutions

Notwithstanding the following :
Despicable//illegal posts should absolutely be deleted. Same from likely comments. But aside from that ...

Features creating user disengagement and disinterest :

Arbitrary deletions :
Since not following communities rules results in posts being deleted. Since this includes active conversation inside such posts. Since such community rules are quite arbitrary and difficult to judge by moderators. ... There has to be a better way than deleting such posts in such circumstances.

Design proposal :

Post unlinking // relinking :
A better design would allow moderator's action (or even bad enough vote totals) to unlink an off-topic-post from a community without deleting it from the instance (site).

Multi-linking of posts :
Better yet, a single post could be simultaneously linked to many communities even across many instances while maintaining one single global space of conversations.

Automatic anti-duplication
Creating duplicates of a post should be prevented automatically ... what should be prevented is the creation of new post linking to the same web page (same URL) as an already existing post does ... unless maybe with special permissions or if made after a long enough elapsed time.

New design's benefits :
This should result in a better user experience by grouping all discussions from one topic inside a unique post ... not dividing into multiple concurrent discussions, almost simultaneously, inside different (( posts // communities // instances )) what is in fact a single topic.
This would also provide peace of mind against arbitrary deletions.

Benefits for moderators
This would also decrease some drama (user to moderator feuds) and simplify moderator's work.

 

cross-posted from:
originally posted by :
@[email protected]
in community :
[email protected]
deleted post in politics :
https://lemmy.world/post/25880650
Also deleted at : https://fedia.io/m/[email protected]/t/1827324
.

The Budapest Memorandum on Security Assurances comprises three substantially identical political agreements signed at the OSCE conference in Budapest, Hungary, on 5 December 1994, to provide security assurances by its signatories relating to the accession of Belarus, Kazakhstan and Ukraine to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). The three memoranda were originally signed by three nuclear powers: Russia, the United States and the United Kingdom. China and France gave somewhat weaker individual assurances in separate documents. The memoranda, signed in Patria Hall at the Budapest Convention Center with U.S. Ambassador Donald M. Blinken amongst others in attendance, prohibited Russia, the United States and the United Kingdom from threatening or using military force or economic coercion against Ukraine, Belarus, and Kazakhstan, "except in self-defence or otherwise in accordance with the Charter of the United Nations."...

 

This community really needs moderation 🤣

 

Anticipation story : in 2025 in the USA, the military has to decide whether to side with the people or with a growing tyrannical government.

 

Danish campaigners are proposing to buy California from the United States and turn it into a territory of Denmark in response to Donald Trump's bid to acquire Greenland. The 'Denmarkification' campaign says it seeks to crowdfund $1 trillion to purchase the US state, after which it plans to instill it with Danish values and make the most of its sunny weather and resources. (...)
(...) Bosses from Danish toy giant Lego would run talks between the US and Denmark, Dutoit told Politico, because 'dealing with children throwing tantrums over missing bricks has made them experts in negotiation.' (...)

 

i cannot add more blocked users so i went one by one through that list ... starting from the first one i blocked. Not surprisingly, looking at each account, they are either Banned or have No Activity Since ~1 year.

Eventually there could be some site maintenance for [ Banned + Empty ] accounts so to clean our block lists accordingly ...

Some other optimization of this type could be made ... i believe it would free the server from useless work since the server have to compute removing according to Long Block Lists ... this task could be heavy in server work ...

What do you think ?

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