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@kexpmusicbot@mastodonapp.uk
2026-06-19 09:13:10

🇺🇦 #NowPlaying on KEXP's #VarietyMix
Tanukichan feat Enumclaw:
🎵 Thin Air
#TanukichanfeatEnumclaw
tanukichan.bandcamp.com/track/
open.spotify.com/track/2mNejMH

@Techmeme@techhub.social
2026-06-19 12:30:48

John Edwards, UK Information Commissioner and chair of the ICO, the country's data and AI regulator, resigned following a workplace investigation (Liv McMahon/BBC)
bbc.com/news/articles/c0eyq7rn

@heiseonline@social.heise.de
2026-05-19 06:06:00

Meta: Vor Massenentlassung auch noch tausende Stellenwechsel angekündigt
Meta will am Mittwoch zehn Prozent der Belegschaft über ihre Entlassung informieren. Noch einmal fast genau so viele sollen in neue KI-Abteilungen wechseln.

@primonatura@mstdn.social
2026-07-19 11:50:10

"Sadiq Khan backs calls for maximum workplace temperature in UK"
#UK #UnitedKingdom #Heatwave

@memeorandum@universeodon.com
2026-05-19 13:30:41

After Sharon McMahon controversy, Utah colleges must now vote on commencement speakers (Courtney Tanner/Salt Lake Tribune)
sltrib.com/news/education/2026
memeorandum.com/260519/p28#a26

In all, 57 Trump officials are worth at least $100 million,
including 17 ambassadors
and the remaining 40 in senior posts across the executive branch.
Look no further than Trump’s Cabinet.
Eight of its 23 members fit the category,
notably Commerce Secretary Howard Lutnick and Education Secretary Linda McMahon, both billionaires.

@arXiv_physicsfludyn_bot@mastoxiv.page
2026-05-19 07:57:20

Rarefaction-induced inflation and similarity breakdown of hypersonic bow shocks over a circular cylinder
Ehsan Roohi, Ahmad Shoja-Sani
arxiv.org/abs/2605.17099 arxiv.org/pdf/2605.17099 arxiv.org/html/2605.17099
arXiv:2605.17099v1 Announce Type: new
Abstract: Rarefied hypersonic bow shocks over blunt bodies inflate as the Knudsen number increases, but it remains unclear whether this inflation is a simple shift and broadening of one common shock layer or a multi-scale change of the macroscopic and internal-energy fields. We address this question using direct simulation Monte Carlo (DSMC) data for Mach-10 flow over a circular cylinder in argon and nitrogen over \(Kn_\infty \approx 0.01\)--\(1\), together with a Mach-number sweep at \(Kn_\infty=0.01\). At low rarefaction, a ray-based density-gradient ridge gives a reproducible bow-shock location and agrees with an independent schlieren-based shock-wave-detection method. As \(Kn_\infty\) increases, this ridge is replaced by a broad kinetic compression layer, so the high-Knudsen cases are analysed using profile-based standoff and thickness metrics rather than by imposing a visual shock line. The Knudsen- and Mach-number sweeps separate two mechanisms. At fixed \(M_\infty\), the continuum normal-shock density ratio provides a useful low-rarefaction reference compression scale, whereas the measured standoff growth is governed primarily by the kinetic mean free path; the effective density thickness shows an intermediate minimum before increasing in the diffuse regime. At fixed low \(Kn_\infty\), changing \(M_\infty\) mainly changes compression strength and curvature, preserving a coherent attached-layer structure. Density-registered profiles and shock-attached proper orthogonal decomposition (POD) show that, within the present maximum-density-gradient registration, density becomes nearly rank one, whereas Mach number and thermal variables retain independent modal content. Rarefied bow-shock inflation is therefore a coupled compression--relaxation process, not a single-scale rescaling of a continuum-like shock.
toXiv_bot_toot

@peter_mcmahan@mas.to
2026-06-18 00:50:18

RE: wandering.shop/@xgranade/11676
The GenAI / oldschool telephone switching analogy (and it's caveats) is spot on.

@romix@mastodon.green
2026-08-18 20:22:18

Was wir gegen die Klimakatastrophe tun ist oft nicht das, was am meisten bringt:
bernerzeitung.ch/klimaschutz-w

Wirkungsvoll ist: Auf's Fliegen verzichten, Auf E-Auto wechseln oder ganz ohne leben, mit Wärmepumpe heizen.
@arXiv_physicsfludyn_bot@mastoxiv.page
2026-05-19 08:13:44

Solutocapillary instability in slipping falling films
Sanghasri Mukhopadhyay, S\'everine Millet, Bastien Di Pierro, Asim Mukhopadhyay
arxiv.org/abs/2605.17519 arxiv.org/pdf/2605.17519 arxiv.org/html/2605.17519
arXiv:2605.17519v1 Announce Type: new
Abstract: We present a comprehensive framework for gravity-driven, surfactant-laden thin films flowing over slippery substrates, elucidating how wall slip modifies the coupled hydrodynamics and interfacial transport. A long-wave model is formulated with a conservative bulk-surface mass balance and a Navier slip condition. The Orr-Sommerfeld eigenvalue problem governs the linear regime, while a weighted-residual model captures the nonlinear evolution over a range of equilibrium surfactant coverages, Marangoni strengths, and adsorption kinetics. The analysis predicts a non-monotonic variation of the critical Reynolds number with equilibrium coverage, exhibiting a maximum at intermediate $\Gamma_e$, and a slip-induced transition from single- to double-hump solitary structures with increasing Marangoni number, accompanied by attenuated capillary ripples. Under fast adsorption kinetics, the surface field homogenizes, preserving the mean film shape and flux while flattening both the surface concentration $\Gamma$ and the bulk inventory $\chi h\phi$. A spurious interfacial mass growth reported by Pascal et al.(PRF, 2019) and D'Alessio et al.(JFM, 2020) is resolved through a revised surface balance ensuring strict conservation. Wall slip thus emerges as a key control parameter, reducing viscous resistance and mitigating Marangoni back-stress. The slip parameter $\beta$ is a useful control knob for surfactant-laden films. Slip prevents fragile multi-hump bound states, promoting a single broad crest or an almost flat, uniform sheet by carefully bonding $\beta$ to wave selection, ripple damping, and the bulk-surface surfactant balance.
toXiv_bot_toot