Tootfinder

Wow - #SodiumIonBatteries half the price, 5x the lifespan, performs better from -20C to 70C, and has a higher energy density than LithiumIon & LithiumFP chemistries, with entirely common materials. Also, the manufacturing can use existing battery production lines with minimal retooling.

"Swiss unemployment stands at a mere 2.8%, meaning the country is near full employment. And, its median salary of approximately over $90,000 per year, is about 50% higher than in the U.S. despite having a similar GDP per capita."
https://fortune.com…

Lorentz Covariance of the $4d$ Nonlinear Higher-Spin Equations via BRST
O. A. Gelfond, M. A. Vasiliev
https://arxiv.org/abs/2509.22852 https://arxiv.org/pd…

Lorentz Covariance of the $4d$ Nonlinear Higher-Spin Equations via BRST
We propose a BRST extension of the higher-spin gauge theory in $AdS_4$ with the BRST operator associated with the local Lorentz symmetry. Our construction supports manifest local Lorentz covariance and is applicable both to any homotopy scheme of the perturbative analysis including the recently proposed differential homotopy and to the variety of further extended higher-spin models in $AdS_3$ and $AdS_4$ with higher differential forms and Coxeter higher-spin algebras.

“Additional direct manufacturing costs do not fully explain the higher prices of electric cars outside China. [..] in Germany, the retail price difference is more than double the manufacturing cost difference.”
https://www.iea.org/reports/what-next-for-the…

Executive summary – What Next for the Global Car Industry – Analysis - IEA
What Next for the Global Car Industry - Analysis and key findings. A report by the International Energy Agency.

For decades, some big polluters were allowed to estimate their emissions using methods the government knew were often unreliable.

Real Pollution Levels: Air monitors at coke manufacturers, chemical plants and other industrial facilities showed far higher emissions than the estimates, records viewed by ProPublica show.

Trump Halts New Rules: The Trump administration has halted rules requiring more than 130 industrial plants to install air monitors and comply with new e…

The EPA Let Companies Estimate Their Own Pollution Levels. We Discovered Real Emissions Are Far Worse.
The Trump administration has put a stop to EPA rules that would have required more than 130 industrial facilities to install air monitors to measure pollution. Millions of people living near these plants face an increased risk of cancer.

Nothing signals the future US military strategy quite like asking Taiwanese companies to stop manufacturing in Taiwan.
https://www.theregister.com/2025/10/01/taiwan_says_it_wont_help/

Taiwan gets chippy about US request it shifts manufacturing
: US has threatened even higher tariffs and the possible loss of military support

Probing the large-scale magnetic field inside the Sun from three decades of observed surface magnetograms
Soumyadeep Chatterjee, Gopal Hazra
https://arxiv.org/abs/2509.23959 htt…

Probing the large-scale magnetic field inside the Sun from three decades of observed surface magnetograms
Space-weather and disturbances in the heliosphere are manifestations of the solar magnetic field, which is solely driven by the interior dynamo, and constraining the solar interior magnetic field and its oscillatory behavior is one of the major challenges in solar physics. Observationally, none of the techniques, including helioseismology, are able to provide an estimation of the interior magnetic field. We reconstruct, for the first time, the dynamics of the interior large-scale magnetic field…

Probing the quantum metric of 3D topological insulators
Giacomo Sala, Emanuele Longo, Maria Teresa Mercaldo, Stefano Gariglio, Mario Cuoco, Roberto Mantovan, Carmine Ortix, Andrea D. Caviglia
https://arxiv.org/abs/2509.17135

Probing the quantum metric of 3D topological insulators
The surface states of 3D topological insulators possess geometric structures that imprint distinctive signatures on electronic transport. A prime example is the Berry curvature, which controls electric frequency doubling via a higher order moment, called Berry curvature triple. In addition to the Berry curvature, topological surface states are expected to exhibit a nontrivial quantum metric, which plays a key role in governing nonlinear magnetotransport. However, its manifestation has yet to be…