Kleiner E-Book-Reader nimmt Smartphones huckepack
Der Xteink X4 ist kompakt gehalten und hält per Magnet etwa an einem iPhone. Für Handys ohne Magnet gibt es Aufkleber.
https://www.heise.de/n…
Exclusive: Trump supporter and oil magnate Harry Sargeant advising US on Venezuela, sources say (Reuters)
https://www.reuters.com/business/energy/trump-supporter-oil-magnate-harry-sargeant-advising-us-venezuela-sources-say-2026-01-08/
http://www.memeorandum.com/260108/p158#a260108p158
Spatially resolved polarization swings in the supermassive binary black hole candidate OJ 287 with first Event Horizon Telescope observations: #EventHorizonTelescope observations of OJ 287 reveal shock waves interacting with Kelvin-Helmholtz instabilities in the jet, producing polarization rotations in opposite directions.
♫ Top 5 artists of the Last.week: NimSins (67) Cryptworm (57) Gastric Fasciitis (49) Ari Lennox (48) Lord Ra (40). #myweekcounted 261 Scrobbles with Lastfm #music via @…
Millimeter-scale rigid diamond probe for high sensitivity endoscopic-magnetometry applications
Jihongbo Shen, Heng Yuan, Hongyu Tao, Zekun Niu, Haoming Xu, Chentao Zhang, Chen Su, Zhuo Wang, Chen Zhang
https://arxiv.org/abs/2602.06077 https://arxiv.org/pdf/2602.06077 https://arxiv.org/html/2602.06077
arXiv:2602.06077v1 Announce Type: new
Abstract: Magnetometry based on diamond nitrogen-vacancy (NV) centers has been extensively studied for applications requiring diverse capabilities, spanning from nanometer spatial resolution to subpicotesla sensitivity. Among various applications, diamond magnetometers can demonstrate high sensitivity magnetic sensing within millimeter-scale size for endoscopic applications. However, the trade-off between sensitivity and spatial resolution of diamond magnetometry makes it difficult to achieve such a probe. In this study, we present a millimeter-scale rigid diamond magnetometer probe with enhanced sensitivity via optimizing the optical design. By coupling the frustum diamond with the miniaturized compound parabolic concentrator (CPC) lens, we enhance the fluorescence collection efficiency by 37% within 4 mm diameter, and the achieved sensitivity is 200 pT/Hz1/2 based on the sample with the resonance linewidth of ~8 MHz. With this verified structure, endoscopes with mm-size probe and picotesla sensitivity can be projected for surgical and industrial applications in the future.
toXiv_bot_toot
heise | Lego Smart Play: Patentanträge und FCC-Dokumente enthüllen Technik
Lego packt eine Elektronik-Plattform mit 3D-Magnettracking, Multi-Radio-Funk und induktivem Laden in einen Klemmbaustein. Patente zeigen, wie es funktioniert.
104 year old Eddy Goldfarb has invented over 800 iconic toys- some of my favorites, too. He made Stompers, which were HUGE for me as a kid (I still have several). He also made talking teeth, Kerplunk, just TONS of stuff.
Cool piece via Moss and Fog (the embedded YouTube video here is a cool watch, also): https://