@adulau@infosec.exchange2025-12-23 09:30:29
I just released version 1.2 of mmdb-server.
mmdb-server is an open source fast API server to lookup IP addresses for their geographic location.
Some minor changes in this release including in the API.
🔗 Release notes https://github.com/adulau/mmdb-server/releases/tag/v1…
@Techmeme@techhub.social2025-12-23 23:05:48
Fleet management software provider Motive files for a US IPO, reporting a $138.5M net loss on $327.3M in revenue for the nine months ended September 30 (Prakhar Srivastava/Reuters)
https://www.reuters.com/technology/motive-technologies-files-us-ipo-2025-12-23/…
@cosmos4u@scicomm.xyz2025-11-24 18:35:42
In 2014, NASA awarded a Commercial Crew Transportation Capability contract to Boeing to fly astronauts to and from the International Space Station with its #Starliner spacecraft; as part of its contract, Boeing was awarded up to six crewed flights to the orbital complex - after a thorough evaluation, the definitive order has been adjusted to four missions, with the remaining two available as options: https://www.nasa.gov/blogs/spacestation/2025/11/24/nasa-boeing-modify-commercial-crew-contract/. The next Starliner flight, known as Starliner-1, will be used by NASA to deliver necessary cargo to the orbital laboratory and allow in-flight validation of the system upgrades implemented following the Crew Flight Test mission last year - NASA and Boeing are targeting no earlier than April 2026 to fly the uncrewed Starliner-1 pending completion of rigorous test, certification, and mission readiness activities.
@UP8@mastodon.social2026-01-24 13:55:32
💮 Compact LET Arrays for Origami-Based Mechanisms
#robotics #mechanical
@_tillwe_@mastodon.social2026-01-24 12:31:24
#FotoDerWoche mit nachgestelltem Raytracing-Motiv.
https://blog.till-westermayer.de/2026/01/photo-of-the-week-after-christmas-ii/
@heiseonline@social.heise.de2025-12-14 18:12:00
MTV ab Januar ganz ohne Musikvideos
In der Nacht zum 1. Januar 2026 ist Schluss: Dann läuft das letzte Musikvideo bei MTV Germany. Das war absehbar.
https://www.heise.de/news/MTV-ab-Januar-ga
@tinoeberl@mastodon.online2026-01-24 05:06:02
👻 #Mythos zum #Frühstück: 😱
„#Holzheizungen sind klimaneutral“.
Hach, dieses romantische Knistern im Kamin, schööööön. Ein tolles Motiv für Werbestrategen. Wer mit
@veit@mastodon.social2025-11-21 13:00:17
I’m planning the 50th calendar week in Berlin: DevOps workshop during the day and meeting with friends and Christmas party with all Berlin Pythonistas in the evening: https://www.meetup.com/python-users-berlin-pub/events/311702582/
@jlpiraux@wallonie-bruxelles.social2026-01-23 16:50:17
Il y a quelque chose de pourri au royaume de la publication scientifique : "Une analyse de 100 000 numéros spéciaux de revues universitaires révèle qu'un numéro sur huit contient des articles rédigés par le rédacteur en chef, en particulier chez l'éditeur MDPI."
@arXiv_physicsoptics_bot@mastoxiv.page2025-11-25 10:30:13
Manipulation of photonic topological edge and corner states via trivial claddings
Hai-Xiao Wang, Li Liang, Shuai Shao, Shiwei Tang, Junhui Hu, Yin Poo, Jian-Hua Jiang
https://arxiv.org/abs/2511.18705 https://arxiv.org/pdf/2511.18705 https://arxiv.org/html/2511.18705
arXiv:2511.18705v1 Announce Type: new
Abstract: Crystalline symmetry offers a powerful tool to realize photonic topological phases, in which additional trivial claddings are typically required to confine topological boundary states. However, the utility of the trivial cladding in manipulating topological waves is often overlooked. Here, we demonstrate two topologically distinct kagome photonic crystals (KPCs) based on different crystalline symmetries: \mathbit{C}_\mathbf{6}- symmetric KPCs exhibit a quantum spin Hall phase, while \mathbit{C}_\mathbf{3}-symmetric KPCs serve as trivial cladding. By tuning the geometric parameter of the trivial cladding, we observe that a pair of topological interface states featured with pseudospin-momentum locking undergoes a phase transition, accompanied by the appearance and disappearance of corner states in a finite hexagonal supercell. Such a geometry-induced band inversion is characterized by a sign change in the Dirac mass of the topological interface states and holds potential for applications such as rainbow trapping. Furthermore, we experimentally demonstrate the corner states, which is a hallmark of higher-order topology, also depend critically on the trivial cladding. Our work highlights the crucial role of trivial claddings on the formation of topological boundary states, and offers a novel approach for their manipulation.
toXiv_bot_toot