Tootfinder

Sichere Akkus: Lithium-Metall-Batterien mit integriertem Flammschutzmittel
Lithium-Metall-Batterien sind energiereich, können jedoch bei Überhitzung schnell in Brand geraten. Ein Polymer soll das verhindern.

"Zo neemt het gebruik van groene stroom minder snel toe dan verwacht, schrijft demissionair minister Hermans van Groene Groei en Klimaat (VVD) in een Kamerbrief.
Voornaamste oorzaak is dat de verduurzaming van de industrie moeizaam verloopt en fabrieken dus langer gebruik moeten maken van fossiele brandstoffen als olie, aardgas en steenkool."
♻️ Perpetuum mobile of drogredenering?

Kabinet snoeit flink in plannen voor windenergie op de Noordzee
Na veel slecht nieuws over windenergie op zee stelt het demissionaire kabinet het streefdoel officieel naar beneden bij.

Scattered Spider hackers targeting insurance industry following retail hits, Google warns https://therecord.media/scattered-spider-targeting-insurance-sector-following-retail-attacks

I need to spend some time with a USB PD analyzer and some of my hardware.
Earlier today I observed the following cursed USB-C behavior at a friend's place:
1) Laptop -> phone: charges phone
2) Power bank -> phone: charges phone
3) Wall brick -> phone: red LED on phone turns on, but OS doesn't show any indication of charging and battery level doesn't go up
4) Wall brick -> power bank: charges bank
5) Laptop -> power bank: LED flashes …

The 3D index and Dehn filling
Daniele Celoria, Craig D. Hodgson, J. Hyam Rubinstein
https://arxiv.org/abs/2509.09886 https://arxiv.org/pdf/2509.09886

The 3D index and Dehn filling
We provide a rigorous proof of the Gang-Yonekura formula describing the transformation of the 3D index under Dehn filling a cusp in an orientable 3-manifold. The 3D index, originally introduced by Dimofte, Gaiotto and Gukov, is a physically inspired q-series that encodes deep topological and geometric information about cusped 3-manifolds. Building on the interpretation of the 3D index as a generating function over Q-normal surfaces, we introduce a relative version of the index for ideal triangu…

Inverse design of drying-induced assembly of multicomponent colloidal-particle films using surrogate models
Mayukh Kundu, Michaela Bush, Chris A. Kieslich, Michael P. Howard
https://arxiv.org/abs/2509.10645

Inverse design of drying-induced assembly of multicomponent colloidal-particle films using surrogate models
The properties of films assembled by drying colloidal-particle suspensions depend sensitively on both the particles and the processing conditions, making them challenging to engineer. In this work, we develop and test an inverse-design strategy based on surrogate modeling to identify conditions that yield a target film structure. We consider a two-component hard-sphere colloidal suspension whose designable parameters are the particle sizes, the initial composition of particles, and the drying r…

Mgmt: We don't have the resources to make our own LLM. Can we just monetize AI prompts?
Business School Student: Hold my beer 🍺
#blockchain

PromptChain: A Decentralized Web3 Architecture for Managing AI Prompts as Digital Assets
We present PromptChain, a decentralized Web3 architecture that establishes AI prompts as first-class digital assets with verifiable ownership, version control, and monetization capabilities. Current centralized platforms lack mechanisms for proper attribution, quality assurance, or fair compensation for prompt creators. PromptChain addresses these limitations through a novel integration of IPFS for immutable storage, smart contracts for governance, and token incentives for community curation. O…

Towards Closing the Performance Gap for Cryptographic Kernels Between CPUs and Specialized Hardware
Naifeng Zhang, Sophia Fu, Franz Franchetti
https://arxiv.org/abs/2509.12494 h…

Towards Closing the Performance Gap for Cryptographic Kernels Between CPUs and Specialized Hardware
Specialized hardware like application-specific integrated circuits (ASICs) remains the primary accelerator type for cryptographic kernels based on large integer arithmetic. Prior work has shown that commodity and server-class GPUs can achieve near-ASIC performance for these workloads. However, achieving comparable performance on CPUs remains an open challenge. This work investigates the following question: How can we narrow the performance gap between CPUs and specialized hardware for key crypt…

Jiggled interferometer: Ground-based gravitational wave detector using rapidly-repeated free-falling test masses
Shoki Iwaguchi, Bin Wu, Kurumi Umemura, Tomohiro Ishikawa, Kenji Tsuji, Ryota Nishimura, Yuta Michimura, Yutaro Enomoto, Soichiro Morisaki, Yoichi Aso, Tomotada Akutsu, Keiko Kokeyama, Seiji Kawamura
https://arxiv.org/abs/2509.1…

Jiggled interferometer: Ground-based gravitational wave detector using rapidly-repeated free-falling test masses
We propose the Jiggled Interferometer (JIGI), a novel ground-based gravitational wave detector with space-like sensitivity. Using rapidly-repeated free-fall test masses, JIGI eliminates seismic and suspension thermal noise during free fall. Compared to the Juggled Interferometer, it offers improved angular stability and avoids tracking lasers. We analyze detrending--a required step to remove actuation-induced noise--and show sensitivity gains of about four orders of magnitude in the 0.1-0.3 Hz …