Tootfinder

As rising tides eat away at the
Saint-Pierre and Miquelon archipelago off Canada,
plans to move the historic village to higher ground have divided residents
https://www.theguardian.com/environment/20

Intelligence artificielle, données, calculs : quelles infrastructures dans un monde décarboné ?
Publication du rapport final
The Shift Project
https://theshiftproject.org/publications/intelligence-artificielle-centres-de-donnees…

Intelligence artificielle, données, calculs : le rapport final du Shift - The Shift Project
Le projet Atlas 2050 propose une nouvelle approche pour éclairer les décisions liées à la transition énergétique et climatique des territoires : anticiper les dépendances et les risques de conflits d’usage de ressources physiques sur les territoires à l’horizon 2050 pour guider l’action aujourd’hui, à toutes les échelles territoriales, dans un contexte de transition climatique et énergétique.

Horizon-scale variability of M87* from 2017--2021 EHT observations
The Event Horizon Telescope Collaboration
https://arxiv.org/abs/2509.24593 https://arxiv…

Horizon-scale variability of M87* from 2017--2021 EHT observations
We report three epochs of polarized images of M87* at 230\,GHz using data from the Event Horizon Telescope (EHT) taken in 2017, 2018, and 2021. The baseline coverage of the 2021 observations is significantly improved through the addition of two new EHT stations: the 12\,m Kitt Peak Telescope and the Northern Extended Millimetre Array (NOEMA). All observations result in images dominated by a bright, asymmetric ring with a persistent diameter of $43.9\pm 0.6\,\muas$, consistent with expectations …

I told these hikers that I was out with my new lens because I'd always struggled to capture the experience of what it's like to hike in Shindagin Hollow State Forest and they said that was a noble mission
#photo #photography

The NilHecke schober
Jasper van de Kreeke
https://arxiv.org/abs/2508.21737 https://arxiv.org/pdf/2508.21737

The NilHecke schober
Perverse schobers can be used to describe Fukaya categories but are hard to axiomatize and construct. In this paper, we give an explicit construction of a perverse schober intended to accurately describe the Fukaya category of the horizontal Hilbert scheme considered by Aganagic et al. in the frame of the knot invariant categorification program. The formalism is based on the notion of $ A_n $-schobers of Dyckerhoff and Wedrich. The construction is entirely algebraic and we check the schober axi…

« L’Europe a le don de transformer une ligne d’horizon en champ de bataille, tout n’est que querelles politiciennes. « 
(“Europe has a talent for turning the horizon into a battlefield; everything is just political squabbling.“)
https://www.numerama…

2035 ou le naufrage des ambitions européennes sur la voiture électrique
Il faut voir la vérité en face, l'Europe manque cruellement d'une vision à long terme et d'unité. À force d'hésiter entre statu quo et révolution, on se saborde. Un édito de la newsletter Watt Else du 23 octobre qui pourrait faire grincer des dents. L’Europe devait conduire sa transition vers le zéro émission, avec

Horizontal and vertical exoplanet thermal structure from a JWST spectroscopic eclipse map: #exoplanets into focus: https://news.cornell.edu/stories/2025/10/now-3d-maps-begin-bring-exoplanets-focus

Dramatische Szenen - Hurrikan „Melissa“ trifft mit 300 km/h auf Jamaika #News #Nachrichten

Black Hole Polarimetry II: The Connection Between Spin and Polarization
George N. Wong, Andrew Chael, Alexandru Lupsasca, Eliot Quataert
https://arxiv.org/abs/2509.22639 https:/…

Black Hole Polarimetry II: The Connection Between Spin and Polarization
We study synchrotron polarization in spatially resolved horizon-scale images, such as those produced by the Event Horizon Telescope (EHT). In both general relativistic magnetohydrodynamic (GRMHD) simulations as well as simplified models of the black hole magnetosphere, the polarization angle, quantified by the complex observable arg(beta_2), depends strongly and systematically on the black hole spin. This relationship arises from the coupling between spin and the structure of the magnetic field…