Tootfinder

3D-Druck: Forscher erstellen magnetische Origami-Muskeln für Medizin-Roboter
Ein magnetischer Muskel auf Origami-Basis treibt zwei Roboter an. Einer bringt Medizin gezielt in den menschlichen Körper ein, der andere ist ein Laufroboter.

Selfie-Monitor mit Magnet von Rollei
Die iPhone-Selfie-Kamera bringt bekanntlich nicht die besten Bilder. Ein Zusatzschirm soll hier Abhilfe schaffen.
https://www.heise.de/news/Selfie-Monitor-m

Actor Noel Clarke loses his UK libel case against the Guardian over an investigation in which he was accused of sexual misconduct by more than 20 women (Haroon Siddique/The Guardian)
https://www.theguardian.com/media/2025/aug

Universality of gravitational radiation from magnetar magnetospheres
Arthur G. Suvorov, Petros Stefanou, Jos\'e A. Pons
https://arxiv.org/abs/2507.14634

Universality of gravitational radiation from magnetar magnetospheres
The intense magnetic fields inferred from magnetars suggest they may be strong gravitational-wave emitters. Although emissions due to hydromagnetic deformations are more promising from a detection standpoint, exterior fields also contribute a strain. However, numerical evidence suggests that the free energy of stable magnetospheric solutions cannot exceed a few tens of percent relative to the potential state, implying that the gravitational-wave luminosity cannot differ significantly between mo…

Pixel 10: Google streicht "Akku teilen"-Funktion zugunsten von Qi2-Magneten
Mit der neuen Pixel-10-Serie verzichtet Google auf den Support das umgekehrte kabellose Laden unter dem Namen „Akku teilen“ zugunsten von Qi2. 

Mathematical modeling and simulation of two-phase magnetohydrodynamic flows at low magnetic Reynolds numbers
Jiancheng Wang, Maojun Li, Zeyu Xia, Liwei Xu
https://arxiv.org/abs/2507.14518

Mathematical modeling and simulation of two-phase magnetohydrodynamic flows at low magnetic Reynolds numbers
We propose a novel mathematical framework for simulating the two-phase incompressible magnetohydrodynamic (MHD) problems. Focusing on low magnetic Reynolds number regimes, where induced magnetic fields are negligible compared to applied fields, an intrinsic sharp-interface system is first formulated. Subsequently, we utilize the phase-field approach to characterize the interface and derive a thermodynamically consistent phase-field model through the Onsager's variational principle. The resultin…

Quantum Co-Magnetometer Using Diamond Nitrogen-Vacancy Centers and Rubidium Cells
Ittai Shalev, Kfir Levi, Rotem Malkinson, Amir Hen, Liron Stern, Nir Bar-Gill
https://arxiv.org/abs/2508.15638

Quantum Co-Magnetometer Using Diamond Nitrogen-Vacancy Centers and Rubidium Cells
Recent advances in chip scale magnetic quantum sensing have produced platforms that pair unprecedented sensitivity with extreme miniaturization. Here, we demonstrate a hybrid quantum sensor by combining Nitrogen-Vacancy (NV) centers in diamond with a rubidium (Rb) vapor cell, designed for precise magnetic field measurements and quantum exploration. The hybrid comagnetometer leverages the high resolution vector magnetic sensing of NV centers along with the high scalar field sensitivity of the Rb…

Evolving magnetic lives of Sun-like stars. I. Characterisation of the large-scale magnetic field with Zeeman-Doppler imaging
S. Bellotti, T. Lueftinger, S. Boro Saikia, C. P. Folsom, P. Petit, J. Morin, M. Gudel, J. -F. Donati, E. Alecian
https://arxiv.org/abs/2507.14861

Evolving magnetic lives of Sun-like stars. I. Characterisation of the large-scale magnetic field with Zeeman-Doppler imaging
Planets orbiting young, solar-type stars are embedded in a more energetic environment than that of the solar neighbourhood. They experience harsher conditions due to enhanced stellar magnetic activity and wind shaping the secular evolution of a planetary atmosphere. This study is dedicated to the characterisation of the magnetic activity of eleven Sun-like stars, with ages between 0.2 and 6.1 Gyr and rotation periods between 4.6 and 28.7 d. Based on a sub-sample of six stars, we aim to study th…

MissionHD: Data-Driven Refinement of Reasoning Graph Structure through Hyperdimensional Causal Path Encoding and Decoding
Sanggeon Yun, Raheeb Hassan, Ryozo Masukawa, Mohsen Imani
https://arxiv.org/abs/2508.14746

MissionHD: Data-Driven Refinement of Reasoning Graph Structure through Hyperdimensional Causal Path Encoding and Decoding
Reasoning graphs from Large Language Models (LLMs) are often misaligned with downstream visual tasks such as video anomaly detection (VAD). Existing Graph Structure Refinement (GSR) methods are ill-suited for these novel, dataset-less graphs. We introduce Data-driven GSR (D-GSR), a new paradigm that directly optimizes graph structure using downstream task data, and propose MissionHD, a hyperdimensional computing (HDC) framework to operationalize it. MissionHD uses an efficient encode-decode pro…

Revisiting the magnetic ground states of RECo$_5$ permanent magnets
F. de Almeida Passos, G. J. Nilsen, R. Dankelman, M. Thijs, G. Balakrishnan, S. Kumar, A. Thamizhavel, J. Larrea Jim\'enez
https://arxiv.org/abs/2507.15170

Revisiting the magnetic ground states of RECo$_5$ permanent magnets
In light of recent improvements in the theory of rare earth magnets, as well as the availability of improved neutron powder diffraction data on these materials, we revisit the magnetic single-ion properties of SmCo$_5$ and the magnetic structures of YCo$_5$ and NdCo$_5$. From neutron diffraction patterns in a wide range of temperatures between 3 K and 800 K, we obtain the thermal coefficient expansion and the magnetic moment values for the latter two materials. For SmCo$_5$, we fit existing neu…