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@bourgwick@heads.social
2025-12-06 21:59:34

truly amazing: the sprawling serial novel by the late rick harris, aka thoughts on the dead, set in little aleppo, somewhere between springfield & macondo. literary fiction as text cartoon. wise & dark & so, so funny. sadly, only available from amazon print on demand: amazon.com/Book-No-…

a book titled "A Book With No Title: A Little Aleppo Novel" with illustration of movie palace called the Tahitian
@@arXiv_physicsatomph_bot@mastoxiv.page@mastoxiv.page
2026-01-08 08:21:35

Visualizing Mathieu-Type Dynamics in a Tabletop Magnetic Trap: A Coil-Driven Parametric Oscillator
William Ho, Anna Klales, Daniel Davis, Jieping Fan, Robert Hart, Ali Kurmus, Louis Deslauriers
arxiv.org/abs/2601.03409

@macandi@social.heise.de
2025-11-19 11:31:00

Apple druckt Apple-Watch-Gehäuse aus recyceltem Titan
Statt nur für das Prototyping verwendet Apple spezielle 3D-Printer nun für die Herstellung von Apple-Watch-Gehäusen. Das Material ist wiederaufbereitet.

@Mediagazer@mstdn.social
2025-12-17 13:20:44

BBC News hires Lindsay McIntosh, previously Head of News at The Sunday Times, as its Executive News Editor (BBC Press Office on LinkedIn)
linkedin.com/feed/update/urn:l

@buercher@tooting.ch
2025-12-12 13:56:50

Peu après 17 heures, Š la fin du premier débat sur le budget de fonctionnement du DSAS, la séance a été suspendue pour permettre aux chefs de groupe de se réunir afin de chercher des compromis. L’ensemble des conseillers d’Etat – Š l’exception de Valérie Dittli qui n’a pas de parlementaires centristes – se sont mêlés Š ces discussions censées rester confidentielles. letemps.ch/suisse/vaud/en-joua

@skington@glasgow.social
2026-01-22 23:52:47

(1) This was the original Macron meme (print / radio / web / TV journalist), and idea that it's four *stages* of Macron is, I think, a misunderstanding: there's no indication that they're somehow sequential in time. It predated his political career going to hell. x.com/NicolasQuenel/status/…

@arXiv_physicsoptics_bot@mastoxiv.page
2025-11-25 11:11:43

High-precision luminescence cryothermometry strategy by using hyperfine structure
Marina N. Popova, Mosab Diab, Boris Z. Malkin
arxiv.org/abs/2511.19088 arxiv.org/pdf/2511.19088 arxiv.org/html/2511.19088
arXiv:2511.19088v1 Announce Type: new
Abstract: A novel, to the best of our knowledge, ultralow-temperature luminescence thermometry strategy is proposed, based on a measurement of relative intensities of hyperfine components in the spectra of Ho$^{3 }$ ions doped into a crystal. A $^{7}$LiYF$_4$:Ho$^{3 }$ crystal is chosen as an example. First, we show that temperatures in the range 10-35 K can be measured using the Boltzmann behavior of the populations of crystal-field levels separated by an energy interval of 23 cm$^{-1}$. Then we select the 6089 cm$^{-1}$ line of the holmium $^5I_5 \rightarrow ^5I_7$ transition, which has a well-resolved hyperfine structure and falls within the transparency window of optical fibers (telecommunication S band), to demonstrate the possibility of measuring temperatures below 3 K. The temperature $T$ is determined by a least-squares fit to the measured intensities of all eight hyperfine components using the dependence $I(\nu) = I_1 \exp(-b\nu)$, where $I_1$ and $b = a\nu \frac{\nu}{kT}$ are fitting parameters and a accounts for intensity variations due to mixing of wave functions of different crystal-field levels by the hyperfine interaction. In this method, the absolute and relative thermal sensitivities grow at $T$ approaching zero as $\frac{1}{T^2}$.and $\frac{1}{T}$, respectively. We theoretically considered the intensity distributions within hyperfine manifolds and compared the results with experimental data. Application of the method to experimentally measured relative intensities of hyperfine components of the 6089 cm$^{-1}$ PL line yielded $T = 3.7 \pm 0.2$ K. For a temperature of 1 K, an order of magnitude better accuracy is expected.
toXiv_bot_toot

@buercher@tooting.ch
2025-12-12 13:52:55

A partir de février, les Suisses qui voyagent aux Etats-Unis devront fournir l’historique de leurs activités sur les réseaux sociaux depuis cinq ans et des informations sur les membres de leur famille.
letemps.ch/monde/en-plein-tour

@@arXiv_physicsatomph_bot@mastoxiv.page@mastoxiv.page
2025-11-21 08:18:50

Optimization of experimental parameters for laser-slowing and magneto-optical trapping of MgF molecules
Dongkyu Lim, Eunmi Chae
arxiv.org/abs/2511.16022 <…