Matthias Aschenbrenner
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maschenb.bsky.social
Matthias Aschenbrenner
@maschenb.bsky.social
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Mathematician
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Reposted by Matthias Aschenbrenner
catacalypto.bsky.social
A story Stoppard told several times, in several places:
"Years and years ago, there was a production of The Tempest, out of doors, at an Oxford college on a lawn, which was the stage, and the lawn went back towards the lake in the grounds of the college, and the play began in natural light. But as it developed, and as it became time for Ariel to say his farewell to the world of The Tempest, the evening had started to close in and there was some artificial lighting coming on. And as Ariel uttered his last speech, he turned and he ran across the grass, and he got to the edge of the lake and he just kept running across the top of the water — the producer having thoughtfully provided a kind of walkway an inch beneath the water. And you could see and you could hear the plish, plash as he ran away from you across the top of the lake, until the gloom enveloped him and he disappeared from your view. And as he did so, from the further shore, a firework rocket was ignited, and it went whoosh into the air, and high up there it burst into lots of sparks, and all the sparks went out, and he had gone. "When you look up the stage directions, it says, 'Exit Ariel.”
November 29, 2025 at 6:10 PM
Reposted by Matthias Aschenbrenner
karl-jacoby.bsky.social
Top academic researchers leaving US amid funding cuts

www.youtube.com/watch?v=yLvO...
Top researchers consider leaving U.S. amid funding cuts: 'The science world is ending'
YouTube video by PBS NewsHour
www.youtube.com
October 30, 2025 at 2:49 AM
Reposted by Matthias Aschenbrenner
carrietait.bsky.social
This photo accompanying a news story about the heist at the Louvre is perfection.
October 19, 2025 at 9:56 PM
Reposted by Matthias Aschenbrenner
johncarlosbaez.bsky.social
This week Steininger and Yurkevich found this convex polyhedron that you *can't* cut a hole in that's big enough to slide the entire polyhedron through the hole.

They gave it a silly name.

arxiv.org/abs/2508.18475

(2/2)
August 28, 2025 at 7:29 AM
Reposted by Matthias Aschenbrenner
johncarlosbaez.bsky.social
You can cut a hole in a cube that's big enough to slide an identical cube through that hole! Think about that for a minute - it's kind of weird.

Amazingly, every convex polyhedron that people checked had this property!

Until this week.

(1/2)
A cube viewed in isometric projection, whose outline is a hexagon, and a square inside this hexagon that's large enough to slide the entire cube through this hole! This is from https://arxiv.org/abs/2508.18475
August 28, 2025 at 7:24 AM
Reposted by Matthias Aschenbrenner
gloefflmann.bsky.social
Österreich einfach ein bedauerlicher historischer Unfall. Viva Imperium Bavariae!
August 15, 2025 at 2:59 PM
Reposted by Matthias Aschenbrenner
dangaristo.bsky.social
For the math folks on here: NSF has suspended Terry Tao's grant. www.nsf.gov/awardsearch/...
NSF Award Search: Award # 2347850
Structure theory for measure-preserving systems, additive combinatorics, and correlations of multiplicative functions
www.nsf.gov
July 31, 2025 at 10:44 PM
Reposted by Matthias Aschenbrenner
dangaristo.bsky.social
Breaking: NSF is suspending roughly 300 grants with UCLA, following a DOJ finding on Tuesday that the university violated Title VI by "creating a hostile educational environment for Jewish and Israeli students."
July 31, 2025 at 5:53 PM
Reposted by Matthias Aschenbrenner
quantamagazine.bsky.social
The mathematician Roland Steinbauer is developing geometric tools that can probe “very badly behaved” space-times where Einstein’s equations break down. He hopes that this math might help provide a foundation for quantum gravity.
www.quantamagazine.org/a-new-geomet...
Portrait of mathematician Roland Steinbauer sitting on a desk in his classroom.
July 20, 2025 at 8:04 PM
Reposted by Matthias Aschenbrenner
quantamagazine.bsky.social
The universe is not always smooth. At the centers of black holes, for instance, the math of space-time falls apart. New geometric tools might help reckon with this reality. www.quantamagazine.org/a-new-geomet...
A New Geometry for Einstein’s Theory of Relativity | Quanta Magazine
A team of mathematicians based in Vienna is developing tools to extend the scope of general relativity.
www.quantamagazine.org
July 16, 2025 at 3:10 PM
Reposted by Matthias Aschenbrenner
heardislandgov.bsky.social
We are in receipt of the WH letter. We can confirm it is legitimate, after comparing the signature to one on a “client list” we have from an island party application in 1998.
justinwolfers.bsky.social Justin Wolfers @justinwolfers.bsky.social · Jul 7
Trade letter for the Heard and McDonald Islands just dropped.
July 8, 2025 at 2:09 AM
Reposted by Matthias Aschenbrenner
suselicht.bsky.social
Zugfahrt Wien-Stuttgart
Wien Hbf
Ich setze mich im leeren Speisewagen zu einem jungen Mann an den Tisch. Er schaut sehr komisch und denkt, what the fuck, kann die sich nicht an einen leeren Tisch setzen? Ich stammle was von,es wird sicher voll und ich würde es voll verstehen, wenn er sich wegsetzt.
July 4, 2025 at 1:32 PM
Reposted by Matthias Aschenbrenner
wolflotter.bsky.social
Ein großer Verlust. Beethovens Klavierkonzert Nr 5 unsterblich. Godspeed.
June 17, 2025 at 9:20 PM
Reposted by Matthias Aschenbrenner
dtkung.bsky.social
At what point will mathematicians stand up and simply state that hosting ICM in Philly in the midst of these racist travel bans isn't right?
ewong.bsky.social Edward Wong @ewong.bsky.social · Jun 17
A State Dept. cable says the Trump administration might add up to 36 countries — most in Africa — to a list of 21 countries on which it imposed a full or partial travel ban this month. Citizens can't get visas to the US. Our @nytimes.com story: www.nytimes.com/2025/06/16/u...
June 17, 2025 at 6:19 PM
Reposted by Matthias Aschenbrenner
aramshabanian.bsky.social
Weird they're showing Swan Lake on Fox right now
June 5, 2025 at 8:13 PM
Reposted by Matthias Aschenbrenner
chrislhayes.bsky.social
I'm just glad one of these men has the nuclear codes and the other has all our personal data.
June 5, 2025 at 8:24 PM
Reposted by Matthias Aschenbrenner
carlomasala1.bsky.social
Größter break up seit Angelina Jolie und Brad Pitt
June 5, 2025 at 6:25 PM
Reposted by Matthias Aschenbrenner
derbernd.bsky.social
Die geheime Poesie des Nachrichtenflusses #Klimakrise
May 28, 2025 at 7:41 PM
Reposted by Matthias Aschenbrenner
monsoon0.bsky.social
The President-elect of Romania, Nicușor Dan, won gold medals at the 1987 and 1988 International Mathematical Olympiads and and obtained a mathematics PhD from the École normale supérieure in Paris in 1998 en.wikipedia.org/wiki/Nicu%C8...
Nicușor Dan - Wikipedia
en.wikipedia.org
May 19, 2025 at 12:10 AM
Reposted by Matthias Aschenbrenner
drew-lewis.com
Guess I have to start telling students that actuary, data scientist, and pope are all good career options if they major in mathematics.
May 8, 2025 at 5:25 PM
Reposted by Matthias Aschenbrenner
governorwalz.mn.gov
Mike Waltz has left the chat.
May 1, 2025 at 3:50 PM
Reposted by Matthias Aschenbrenner
drannaclark.bsky.social
Prince of mathematics: Carl Friedrich Gauss, exceptional mathematician, known for Normal Distribution, born #OTD 1777; astronomer & scientist, Professor at Göttingen University, he made significant contributions to algebra, geometry & number theory.
Portrait by Christian Albrecht Jensen, 1840
Prince of mathematics: Carl Friedrich Gauss, exceptional mathematician, known for Normal Distribution, born #OTD 1777; astronomer & scientist, Professor at Göttingen University, he made significant contributions to algebra, geometry & number theory. Portrait by Christian Albrecht Jensen, 1840 Berlin-Brandenburg Academy of Sciences | 17 Equations by Ian Stewart Prince of mathematics: Carl Friedrich Gauss, exceptional mathematician, known for Normal Distribution, born #OTD 1777; astronomer & scientist, Professor at Göttingen University, he made significant contributions to algebra, geometry & number theory. Portrait by Christian Albrecht Jensen, 1840 Berlin-Brandenburg Academy of Sciences | 17 Equations by Ian Stewart
April 30, 2025 at 5:31 AM
Reposted by Matthias Aschenbrenner
ds-vienna.bsky.social
Today we celebrate #GirlsInScience on Vienna Daughters' Day #Töchtertag organised by @wien.gv.at at our research network @univie.ac.at Our guests are currently taking part in a #DataScience workshop at the Department of #Geography hosted by our board member Krzysztof Janowicz #DSHQ
Girls sitting and looking at a presentation Herzlich Willkommen am Institut für Geographie und Regionalforschung, Arbeitsgruppe Kartographie und Geoinformatik with a giant globe on the right hand side
April 24, 2025 at 9:15 AM
Reposted by Matthias Aschenbrenner
lincolnproject.us
ETTD
April 22, 2025 at 8:41 PM
Reposted by Matthias Aschenbrenner
rbreich.bsky.social
Last night was the 250th anniversary of Paul Revere's midnight ride to warn the Minutemen of approaching British troops.

I want to take a moment to share an excerpt from the Declaration of Independence's grievances against King George III.

Remind you of anyone?
April 19, 2025 at 6:27 PM