Tootfinder

TIL about Widmanstätten-structures, a pattern of cross-hatching lines on the surface of iron-rich meteorites. The pattern was named after Alois Joseph Franz Xaver Beck Edler von Widmanstätten.
https://en.wikipedia.org/wiki/Widmanstätten_pattern

Snapchat launches Topic Chats, which enables public conversations on subjects like F1, and plans to use AI and other safety tech to moderate the chats (Aisha Malik/TechCrunch)
https://techcrunch.com/2025/11/18/snapchat-rolls-out-topic-chats-for-publ…

Snapchat rolls out 'Topic Chats' for public conversations | TechCrunch
The social network says the new feature will let users chat about what’s happening in the world and across various communities, from Formula 1 to the reality TV show "Below Deck."

For some reason the combination of 160K and my Mitutoyo 100x/0.90 objective means that as the last bits of ILD begin to etch away, substrate features become *less* visible.
I expected to see strong contrast at edges of substrate features when the ILD was etched away despite poly, STI trenches, and diffusion areas all being the same material (silicon).
But that's not what I'm seeing.
Going back to my archives, though, most of my good full die 100x shots are with the …

Ich dachte erst, #Schnieder hätte tatsächlich eine #Geschwindigkeitsbegrenzung auf Autobahnen durchsetzen können, aber das ist Spanien...

Bislang übersehen: 900 Meter großer Meteoritenkrater im Süden Chinas entdeckt
In der südchinesischen Provinz Guangdong hat ein Forschungsteam womöglich einen der größten Meteoritenkrater aus der Zeit nach der jüngsten Eiszeit entdeckt.

House Republicans help Democrats defy Johnson on ACA in stunning revolt (Axios)
https://www.axios.com/2025/12/17/mike-johnson-moderate-republicans-fitzpatrick-health-care-aca
http://www.memeorandum.com/251217/p48#a251217p48

Ein Klexemplar ist noch im Shop - dann melde ich dieses Motorrad sozusagen ab. Das letzte handgemaltes #wandklexschmuck Stück ist noch zu finden auf https://www.wandklex.art/product/druckknopfmotiv-buntfug-motorrad-handgemalte-20mm-miniatur-mit-edelstahl-gliederarmband-mit-knebelverschluss-und-glitzerndem-herz-ggf-auch-abnehmbar-222855.

Matchings in Matroids over Abelian Groups, III
Mohsen Aliabadi, Elliot Krop
https://arxiv.org/abs/2509.14339 https://arxiv.org/pdf/2509.14339

Matchings in Matroids over Abelian Groups, III
In an abelian group $G$, a \emph{matching} is a bijection $f\colon A\to B$ between finite subsets $A,B\subseteq G$ such that $a+f(a)\notin A$ for all $a\in A$. We say that $G$ has the \emph{matching property} if every pair of finite subsets $A,B\subseteq G$ with $|A|=|B|$ and $0\notin B$ admits such a matching. This paper develops matroidal analogues of classical results on group matchings. By embedding matroid ground sets in $G$, we introduce base matchings between matroid …

Madrid – Plaza de Santa Ana
#kamafotos

Klokken kvart over syv i morges gik jeg er supermarkedet og kŸbte ind til en stor gryde kŸdsovs. Det er til ÆldsteSŸn som for nogle uger siden rapporterede at han knokler på studiet og som undervisningsassistent og lægger over 60 timer om ugen i det. Vi har allerede været god ham med et læs nedfrosne madretter, og dette bliver så det andet. Og han er glad og lettet 😇