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The resilience of the sailboat stable region
Rafael Sfair, Tiago F. L. L. Pinheiro, Giovana Ramon, Ernesto Vieira
https://arxiv.org/abs/2510.11855 https://…

The resilience of the sailboat stable region
Binary systems host complex orbital dynamics where test particles can occupy stable regions despite strong gravitational perturbations. The sailboat region, discovered in the Pluto-Charon system, allows highly eccentric S-type orbits at intermediate distances between the two massive bodies. This region challenges traditional stability concepts by supporting eccentricities up to 0.9 in a zone typically dominated by chaotic motion. We investigate the sailboat region's existence and extent across …

Time-resolved solvation dynamics of Li$^ $, Na$^ $ and K$^ $ ions in liquid helium nanodroplets
Jeppe K. Christensen, Simon H. Albrechtsen, Christian E. Petersen, Constant A. Schouder, Iker S\'anchez-P\'erez, Pedro Javier Carchi-Villalta, Massimiliano Bartolomei, Fernando Pirani, Tom\'as Gonz\'alez-Lezana, Henrik Stapelfeldt
https://

Time-resolved solvation dynamics of Li$^+$, Na$^+$ and K$^+$ ions in liquid helium nanodroplets
In 2023, ultrafast pump-probe spectrocopy was used to record the solvation dynamics of a single Na$^+$ ion in a liquid helium droplet, atom-by-atom and with femtosecond time resolution [Albrechtsen \textit{et al., Nature}, 2023, \textbf{623}, 319]. Subsequently, theoretical studies showed that other alkali ions solvate in a similar manner but no experimental results were reported so far. Here, we extend the previous measurement on Na$^+$ to Li$^+$ and K$^+$ ions. A pump pulse selectively ionize…

At a private event hosted by Senator Dave McCormick, Republican of Pennsylvania,
donors wandered through a sculpture hall at the Carnegie Museum of Art in Pittsburgh
and partied with their cowboy hats on at a dinner where each plate cost $5,000.
The aftermath was less celebratory.
Dozens of employees at the Carnegie Museums sent an open letter to trustees,
saying that the fund-raiser violated guidelines meant to safeguard the institution from partisan activities…

$5,000-Per-Plate Dinner Tests Museum Ban on Political Fund-Raisers
Carnegie Museums employees objected that a fund-raiser for a nonprofit with ties to a senator had violated museum policy against renting space for partisan political events.

Sculpting Topological Modes on Photonic Chips by Artificial Gauge Fields
Zhiyuan Lin, Jian Li, Wange Song, Xueyun Li, Haoran Xin, Xian Long, Chen Chen, Shining Zhu, Tao Li, Shuang Zhang
https://arxiv.org/abs/2509.10315

Sculpting Topological Modes on Photonic Chips by Artificial Gauge Fields
Significant efforts have been devoted to manipulating topological states, which often manifest as localized modes at interfaces between distinct topological phases. In this work, we demonstrate a versatile approach to sculpting topological modes (TMs) into any desired shapes by incorporating various artificial gauge fields (AGFs), including scalar, vector, and imaginary gauge potentials, and leveraging the power of artificial neural networks (ANNs). These AGFs enable precise tuning of the dissi…

Morning!
I slept well, but woke up kinda early. So, I popped my AirPods in and watched The Wrath of Khan under the duvet 😂
#StarTrek #Morning

Free, no paywall
#uspol
Trump Has a New Definition of Human Rights
The Trump administration has made U.S. human-rights reports favorably evaluate countries the president likes, @anneapplebaum writes. Now the State Department portrays “Germany as more oppressive than El Salvador”:

Trump Has a New Definition of Human Rights
State Department reports portray Germany as more oppressive than El Salvador.

4K Blu-Ray of 22-Year-Old 'Master and Commander' Is Sold Out Everywhere, Being Scalped on eBay https://www.404media.co/4k-blu-ray-of-22-year-old-master-and-commander-is-sold-out-everywhere-being-scalped-on-ebay/

Google nukes 224 Android malware apps behind massive ad fraud campaign
https://www.bleepingcomputer.com/news/security/google-nukes-224-android-malware-apps-behind-massive-ad-fraud-campaign/

Google nukes 224 Android malware apps behind massive ad fraud campaign
A massive Android ad fraud operation dubbed "SlopAds" was disrupted after 224 malicious applications on Google Play were used to generate 2.3 billion ad requests per day.

Putin besucht sowjetisch-amerikanisches Denkmal
Wenige Stunden vor seinem Gipfeltreffen mit Trump hat der russische Präsident Putin staatlichen Medienberichten zufolge Blumen an einem Denkmal in der fernöstlichen russischen Stadt Magadan niedergelegt. Die Skulptur erinnert an die Zusammenarbeit zwischen den USA und der Sowjetunion im Zweiten Weltkrieg und zeigt den Händedruck eines sowjetischen und …
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