Mathsky: It is frequently useful to know that a surjective continuous map between compact Hausdorff spaces is a quotient map. Is there a catchy name for this fact? Not everything can be called the Chuck Norris theorem!

Signs that I've been in Slovenia for a while: Encountering a "medomat" (bankomat, but for honey). Laughing at the only-in-Slovenia-ness. Realizing that I need honey, and buying honey at the medomat.

Today's news is a shocking betrayal of the FIFA Peace Prize and everything it stands for.

Felt cute. Might delete later, idk. (From my talk at CSASC 2026)

This is a powerful message from Freeman Hrabowski. 🧵 1/12

While everyone is remembering Ozzy: his No Rest for the Wicked album is, I think, underrated. First album with Zack Wylde, also has longtime bassist Bob Daisy. Similar lineup to the No More Tears album (but harder edge). Uneven, but the bright spots are there. www.youtube.com/watch?v=xDpT...

With an impossibly young Ozzy, and no other comment: www.youtube.com/watch?v=0qan...

When I was little, the U.S. military came to our home at gunpoint and took me and my family away. We were imprisoned for years in barbed wire camps simply because we were Japanese American. I have spent my life telling that story, hoping it would never be repeated.

Wo comment. iranian.com/Pictory/2006...

In these dark times, it may bring you comfort to remember that there is a reggae version (equivalent?) of "Rubber Duckie"! www.youtube.com/watch?v=W6_d...

Folks might be more interested than usual: the University of Primorska offers study programs in Mathematics and Computer Science in English (language). Applications are still open; procedure described (perhaps a little confusingly) here: www.upr.si/en/study--en...

Folks at the University of Montana math are streaming a 24 hour marathon of discrete math lectures for Pi Day 2025. Start 9am MST on 14 Mar, end 24 hours later. Come for as little or as much as you like. Spectral graphs and coarse graphs and number theory oh my! www.twitch.tv/mathdaymarat...

@WeRateDogs.com is finally on Bluesky! I think that was the last thing that I occasionally went back to the old site for. Sometimes one just needs to know whether the iraqi speed kangaroo is a 9/10 or a 14/10... (It was a 9/10, in the days before grade inflation.)

TOMORROW- Friday, February 28th is BLACKOUT FRIDAY! If you believe we are in danger of losing our Democracy forever, FIGHT BACK! Let's make our voices heard in numbers too big to ignore. JOIN US if you've had it with Comrade Krasnov. 🤬 🇷🇺 #24HourEconomicBlackout

Folks may be interested in the _Notices_ article on editing mathematical topics on Wikipedia www.ams.org/journals/not... by Joel Brewster Lewis, David Eppstein, myself, and (although not officially listed as an author) the pseudononymous Wikipedia editor XOR'easter.

D&D Combinatorics xkcd.com/3015