Meanwhile, in the US of A :floofSad:
https://aflegal.org/press-release/america-first-legal-files-formal-complaints-with-the-tr…
NHL Productions plans to produce and distribute game telecasts for four teams when the season begins, since Main Street Sports shut down; more clubs might join (Joe Reedy/Associated Press)
https://apnews.com/article/nhl-tv-hurricanes-blue…
U.S. Ambassador to France,
Charles Kushner,
whose son Jared is married to Trump’s daughter Ivanka,
clashed with his French hosts weeks after arriving last July
when he accused them of not doing enough to combat antisemitism.
Nearly a year later, he contends the problem has gotten worse
— so much so that he has suggested the Trump administration grant refugee status to French Jews, even as it otherwise scales back asylum provision.
“It would be an obje…
The Butterfly Defect Effect in Cylindrical Shell Buckling: Non-localized Interactions of Localized Imperfections
Uba K. Ubamanyu, Antoine Blond, John W. Hutchinson, Pedro M. Reis
https://arxiv.org/abs/2607.19245 https://arxiv.org/pdf/2607.19245 https://arxiv.org/html/2607.19245
arXiv:2607.19245v1 Announce Type: new
Abstract: We investigate the buckling of axially compressed cylindrical shells containing localized defects, focusing on interactions among multiple defects and between them and the shell edges. Using high-fidelity finite-element simulations, we first characterize the parameter space of single-dimple sensitivity, defect-edge coupling, and pairwise defect-defect interactions. Building on this deterministic baseline, we run stochastic simulations of shells with randomly distributed imperfections whose amplitudes are sampled from a log-normal distribution. Post-buckling deformations form non-axisymmetric, butterfly-shaped patterns whose `wings' reach far across the shell surface. This spatial extent induces unavoidable interactions with neighboring defects and the clamped edges, so that buckling is not necessarily initiated by the deepest defect. A larger defect population raises the likelihood of an extreme defect, producing a statistical size effect: as the mean number of defects grows, the mean knockdown factor decreases asymptotically and its variability decays exponentially. The butterfly defect effect qualitatively explains the scatter in historical experimental data by correlating the knockdown factor with the cylinder length-to-thickness ratio ($H/t$) rather than the radius-to-thickness ratio ($R/t$) alone, thereby establishing $H$ as a key parameter for stability alongside $R$ and $t$. Nonetheless, the knockdown factors obtained here remain well above those reported in historical experiments, indicating that the localized Gaussian dimple, though nearly the worst-case imperfection for spherical shells, is not so for cylinders.
toXiv_bot_toot
RE: https://academiccloud.social/@mpsgoettingen/116618164482143597
Authored by IMPRS doctoral researcher Nerea Gurrutxaga, with IMPRS doctoral researcher Vignesh Vaikundaraman as one of the co-authors: this exiting press release about their work…
Firefighters rescued a small dog that had been missing for weeks after finding it swimming into the San Francisco Bay.
The dog had gone missing over the Fourth of July weekend, according to the Menlo Park fire protection district.
But someone called 911 on 16 July to say they had seen a dog enter the bay near the Dumbarton Bridge in East Palo Alto.
The dog “just kept swimming”, according to a Menlo Park fire district Instagram post.
The Menlo Park fire protection distri…
Preciso decidir se me arrisco a sair pra passear com esta ventania ou se fico em casa. Até porque jš estš ficando tarde.