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@usul@piaille.fr
2026-02-10 08:19:42

Allez on a passé les 50% petitions.assemblee-nationale. on continue de partager et faise signer

@Techmeme@techhub.social
2026-01-08 12:01:59

Lego says its Smart Brick is "here to stay" but "does not mean that we're leaving our core proposition behind", after criticism of abandoning non-digital play (Tom Phillips/IGN)
ign.com/articles…

@elduvelle@neuromatch.social
2026-02-07 15:13:30

"Contre les « lois Duplomb » visant Š réintroduire des pesticides, des rassemblements annoncés partout en France ce week-end"
lemonde.fr/planete/article/202

@lightweight@mastodon.nzoss.nz
2026-01-06 23:07:29

The solar PV story is pretty incredible. China's long term strategic plan (with all the negative things that went with it) is bearing amazing fruit that's changing the economic proposition around the world, especially in the poorer (colonised) global South: youtube.com/watch?v=Z8JFCJP70rg

@rainerzufall_le@mastodon.social
2026-02-07 18:57:34

"Bitcoin is crashing hard, reaching historic lows of well below the $70,000 mark. At the time of writing, the token is hovering just above $63,000, levels we haven’t seen since October 2024."
"According to Coindesk, the average cost to mine one Bitcoin is currently around $87,000 — far higher than its current going rate, making it an extremely unprofitable proposition."
🥳🥳🥳

@jlpiraux@wallonie-bruxelles.social
2026-01-04 08:43:20

Un score pour noter les produits ménagers en fonction de leur impact sur la santé et l’environnement : excellente proposition !
theconversation.com/un-score-p

Proposition 36, approved by voters last year, gave prosecutors the ability to charge people convicted of various third-time drug offenses with a so-called
treatment-mandated felony
– a choice between behavioral health treatment or up to three years in jail or prison.
bit.ly/3NiBX0r
📸 J.…

@buercher@tooting.ch
2025-12-05 09:45:33

Ce qui est grave avec Nantermod c’est que sa proposition implique qu’il y a des vraies et des fausses maladies et que la santé psychique n’est pas essentielle. Si on est dans le tri, pourquoi pas aussi renoncer au traitement de la grippe (passagère), myopie (on peut se rapprocher du sujet qu’on regarde), accidents de ski (y a qu’Š)?

@arXiv_physicsgenph_bot@mastoxiv.page
2025-11-12 09:10:59

Einstein and Debye temperatures, electron-phonon coupling constant and a probable mechanism for ambient-pressure room-temperature superconductivity in intercalated graphite
E. F. Talantsev
arxiv.org/abs/2511.07460 arxiv.org/pdf/2511.07460 arxiv.org/html/2511.07460
arXiv:2511.07460v1 Announce Type: new
Abstract: Recently, Ksenofontov et al (arXiv:2510.03256) observed ambient pressure room-temperature superconductivity in graphite intercalated with lithium-based alloys with transition temperature (according to magnetization measurements) $T_c=330$ $K$. Here, I analyzed the reported temperature dependent resistivity data $\rho(T)$ in these graphite-intercalated samples and found that $\rho(T)$ is well described by the model of two series resistors, where each resistor is described as either an Einstein conductor or a Bloch-Gr\"uneisen conductor. Deduced Einstein and Debye temperatures are $\Theta_{E,1} \approx 250$ $K$ and $\Theta_{E,2} \approx 1,600$ $K$, and $\Theta_{D,1} \approx 300$ $K$ and $\Theta_{D,2} \approx 2,200$ $K$, respectively. Following the McMillan formalism, from the deduced $\Theta_{E,2}$ and $\Theta_{D,2}$, the electron-phonon coupling constant $\lambda_{e-ph} = 2.2 - 2.6$ was obtained. This value of $\lambda_{e-ph}$ is approximately equal to the value of $\lambda_{e-ph}$ in highly compressed superconducting hydrides. Based on this, I can propose that the observed room-temperature superconductivity in intercalated graphite is localized in nanoscale Sr-Ca-Li metallic flakes/particles, which adopt the phonon spectrum from the surrounding bulk graphite matrix, and as a result, conventional electron-phonon superconductivity arises in these nano-flakes/particles at room temperature. Experimental data reported by Ksenofontov et al (arXiv:2510.03256) on trapped magnetic flux decay in intercalated graphite samples supports the proposition.
toXiv_bot_toot