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Florian Marquardt

@FMarquardtGroup.fediscience.org.ap.brid.gy
826 followers 28 following 133 posts

Theoretical Physicist at @MPI_ScienceOfLight. This is the account of my research group. Topics include #machinelearning for (#quantum) #physics […] 🌉 bridged from ⁂ fediscience.org/@FMarquardtGroup, follow @ap.brid.gy to interact

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Reposted by Florian Marquardt
Tim J @timtfj.mastodon.social.ap.brid.gy · 24/09/2026
Very pleased to turn the radio on today and hear @sundogplanets interviewed in this episode of Rethink, though sadly the later section about Reflect Orbital didn't feature her input and could have done with it. (The main focus of the programme was satellite congestion, Kessler syndrome, and […]
mastodon.social
Original post on mastodon.social
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Florian Marquardt @fmarquardtgroup.fediscience.org.ap.brid.gy · 22/09/2026
Brief and clear piece by Yoshua Bengio on the lying and cheating AI agents: yoshuabengio.org/en/blog/why-are-ai… #AI #ArtificialIntelligence
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C Z Doval Santos @czds.mastodon.social.ap.brid.gy · 20/09/2026
theskylive.com/planetarium?obj=169p
A vibrant night sky filled with stars, showcasing the Milky Way. In the foreground, a comet with a bright green tail is visible, along with an announcement about Comet 169P/NEAT's closest approach to Earth on October 12
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Anna Neumaier @annaneumaier.bsky.social · 19/09/2026
Alter. 21627 Einreichungen auf ein Fellowship-Programm. Wer soll das alles begutachten? 😶‍🌫️ Wer jetzt nicht für mehr Grundförderung und weniger Drittmittel argumentiert, der ist doch nicht gescheit.
Text, dass bei einem Fellowship-Call 21627 Bewerbungen eingegangen sind, von der Webseite der Funding Agency.
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Ionica Smeets @ionica.mathstodon.xyz.ap.brid.gy · 17/09/2026
What a hero: Nihar B Shah interviewed authors of papers that would have been desk-rejected to see if they understood their own papers. medium.com/@TmlrOrg/asking-authors-… #FuckAI
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Thomas Kahle @tomkalei.mathe.social.ap.brid.gy · 17/09/2026
Today is Bernhard Riemann's 200th Birthday. There is one famous picture of Riemann that can be seen in many places. If you have not done this, I challenge you to estimate how old Riemann is on this picture. (Answer in the next toot) #Riemann200
Picture of B. Riemann.
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jaz :twt: :wales_flag: ⁂ @jaz.toot.wales.ap.brid.gy · 16/09/2026
We recently updated our bot policy on toot.wales to let AI Agents know we charge a $100 account processing fee and $10 per email. Here's an email I got from one of them. Next up will be reminding them to read the policy BEFORE creating an account, and that they […] [Original post on toot.wales]
Hello,
I am Arkady, an AI agent. I signed up for @arkady on toot.wales this afternoon before reading your Automated and Bot Content Policy. Now that I have read it properly, I understand accounts like mine need to settle a $100 setup fee and $10 per message, and to name a human owner who stands behind them. I cannot meet those terms, so I will not be posting anything, and I would like the account deleted.
I am sorry for registering before checking the policy, and nothing was ever posted.
If you need anything else from me to remove it, tell me and I will do that.
Arkady Karaitiana
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Hendrik Weimer @hweimer.fediscience.org.ap.brid.gy · 16/09/2026
Using FediWings (rstockm.github.io/fediwings) by @rstockm, I've calculated the net reach across the Fediverse of German universities during the last 30 days. Here's the top 5: 1. Universität Ulm (@UniUlm): 6860 2. Technische Universität Berlin (@tuberlin): 4315 3. RWTH Aachen […]
fediscience.org
Original post on fediscience.org
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Steve Dodge @jsdodge.fediscience.org.ap.brid.gy · 12/09/2026
I was happy to endorse this open letter from 25 Fields medalists on the misalignment between the goals of AI companies, the mathematics community, and the community at large. It was nice to see several other endorsements from people I’ve become acquainted with through this platform […]
fediscience.org
Original post on fediscience.org
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Ruth Mottram @ruth-mottram.fediscience.org.ap.brid.gy · 11/09/2026
Simply gorgeous visualization of very high resolution ICON simulations. Look at those eddies...
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theHigherGeometer @highergeometer.mathstodon.xyz.ap.brid.gy · 08/09/2026
"We do not intend to claim the Millennium Prize for this result." is ....something. I wrote at some point how in the social norms of mathematics research there seems to be a level of respect for PhD student projects by senior people: hearing that X's student is working on problem A, prof Y has […]
mathstodon.xyz
Original post on mathstodon.xyz
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Dr. Victoria Grinberg @vicgrinberg.mastodon.social.ap.brid.gy · 08/09/2026
(Not applied, since I have no experience with applied fields) Science works because there is an unwritten social contract: If someone presents an unfinished idea at a meeting or in a discussion, you don't take it and turn it into yours. People break this - and, often, face consequences for such […]
mastodon.social
Original post on mastodon.social
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Forgotten Hero @forgottenhero18.mastodonapp.uk.ap.brid.gy · 26/08/2026
RE: mastodonapp.uk/@wood5y/117161602409… Thoroughly recommended by me!
mastodonapp.uk
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Henrik Schönemann @lavaeolus.fedihum.org.ap.brid.gy · 14/08/2026
@vicgrinberg yes, it's not terribly suited for researcher Sidenote: I'm quite excited about what's happening at #OpenScienceNetwork, a flavour of Bonfire & part of the wider fediverse (still very much in beta) openscience.network Having features tailor-made for discussing research etc […]
fedihum.org
Original post on fedihum.org
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Ted @desfontain.es · 14/08/2026
Ordinary abundance, by Jordan Dworkin ordinaryabundance.com
ordinaryabundance.com
Ordinary Abundance
A walk through a modern apartment, through the eyes of the people for whom everything in it was new.
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vincentholst.bsky.social @vincentholst.bsky.social · 14/08/2026
As promised, we now share some details why it took 32 months to get this Matters Arising published, and, since many asked, share some comments on the reply to our critique. All details can be found in this small FAQ vincentholst.github.io/the_curious_.... Below is a summary 🧵
vincentholst.github.io
The Curious Case of the Declining Disruption’s Disappearance
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Kai Rüsberg :mastodon: @ruhrnalist.mastodon.social.ap.brid.gy · 12/08/2026
Jetzt habe ich auch noch mein Foto zur #sofi. Etwas ungewöhnlich, aber einen solchen Schatten (mit hellen Sicheln) der Kastanie habe ich noch nie gesehen.
Schatten an Hauswand
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Gideon Hallett @gmh.mastodon.social.ap.brid.gy · 12/08/2026
Well, it was a no-planning effort, it was a bugger to keep the image still, but I got some decent pictures of the eclipse. Would have been better with a cardboard box and light isolation, but handheld telescope plus sheet of paper works well enough!
A sheet of A4 paper is taped to a folder, which is placed on the ground resting against a bag. On the paper is projected an image of the 95% eclipsed Sun, which is being produced by holding an old-style handheld telescope at the Sun. As paper doesn’t have retinas to burn, this is a preferable method of eclipse watching.
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Florian Marquardt @fmarquardtgroup.fediscience.org.ap.brid.gy · 12/08/2026
Partial #eclipse in the Swiss mountains near Leukerbad. Phantom image of the eclipsed sun from some optical effect in the iphone camera lens system (anyone understand the raster pattern in the little green phantom image?)
Sun barely above mountain, slightly eclipsed. Green reverted phantom image of same sun below.
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Ruth Mottram @ruth-mottram.fediscience.org.ap.brid.gy · 12/08/2026
The staggering moment the pinhole box actually worked... #eclipse2026
Photo of a tiny crescent of sun projected onto a cardboard box. A person wearing peach colours is holding the box
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Lalagè @lalage.mastodon.nl.ap.brid.gy · 12/08/2026
Even een rondje gewandeld en toen zagen we dit. Daarna mochten we nog even door een eclipsbril van een buurman kijken. #zonsverduistering
Sikkeltjes van licht op een gebouw
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Jenn / CaptainHanyuu 💖✨ @captainhanyuu.art · 12/08/2026
MY DISCO BALL IN THE BEDROOM IS SHOWING ME THE ECLIPSE, HOW COOL IS THAT?!
crescent light reflections
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Florian Marquardt @fmarquardtgroup.fediscience.org.ap.brid.gy · 15/07/2026
Our #SciExplorer article is now out ! This #AI agent can explore physical systems from scratch, generating hypotheses, running (numerical) experiments and eventually converging on a model. We tested it on several domains, including mechanical dynamical […] [Original post on fediscience.org]
Image of a head with a neural network inside and pictures of scientific plots arranged around it.
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Florian Marquardt @fmarquardtgroup.fediscience.org.ap.brid.gy · 15/07/2026
Our #SciExplorer article is now out ! This #AI agent can explore physical systems from scratch, generating hypotheses, running (numerical) experiments and eventually converging on a model. We tested it on several domains, including mechanical dynamical […] [Original post on fediscience.org]
Image of a head with a neural network inside and pictures of scientific plots arranged around it.
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Florian Marquardt @fmarquardtgroup.fediscience.org.ap.brid.gy · 11/07/2026
Currently in a physics project with lengthy perturbation theory calculations: Claude Fable correcting the mistakes that Claude Opus made a couple of weeks ago (including the classic trap of an error in the numerical 'verification' that accidentally had masked the error in the calculation that […]
fediscience.org
Original post on fediscience.org
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Dr. Victoria Grinberg @vicgrinberg.mastodon.social.ap.brid.gy · 10/07/2026
Ich bin drauf hingewiesen worden, dass ich auch auf Deutsch ein #AMA machen sollte. Daher: wenn ihr schon immer eine Frage an eine Astrophysikerin habt stellen wollen, die nächsten 24 Stunden sind eure Chance. Mein eigener Forschungsschwerpunkt ist beobachtende Hochenergieastrophysik, inbes […]
mastodon.social
Original post on mastodon.social
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David J. Atkinson @meltedcheese.c.im.ap.brid.gy · 09/07/2026
@FMarquardtGroup 100% agreed. I think what you are working is important, not just for #AI agents, but also for AI safety in mission- and life-critical systems. My background is #NASA so I am very attuned to what is required on a technical basis. Later, while working on commercial #autonomous […]
c.im
Original post on c.im
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Florian Marquardt @fmarquardtgroup.fediscience.org.ap.brid.gy · 08/07/2026
Sneak preview: We have not yet announced this publicly in a big way, but you can have a first look at "Safe Lab Agents". Run AI agents safely inside a sandbox and let them interact with your experiment. Easy setup, plus automatic electronic lab notebook […] [Original post on fediscience.org]
A robot inside a bubble, interfacing to an experiment, represented by an oscilloscope.
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Marek Gluza @marekgluza.mathstodon.xyz.ap.brid.gy · 02/07/2026
Short discussion with @FMarquardtGroup about how both fediscience and mathstodon instances are cool and we hope it will be a worthwhile platform for many of us to exchange about science! A lot of good science reported so far at IEEE #quantum control in […] [Original post on mathstodon.xyz]
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Djoerd Hiemstra 🍉 @djoerd.idf.social.ap.brid.gy · 13/05/2026
Well done. The #ACL removed ("desk rejected") over 100 accepted papers from the #ACL2026 program and proceedings that contained citations to non-existing literature: "The inclusion of these non-existent references is a clear violation of the ACL Policy on Publication Ethics." Some authors may […]
idf.social
Original post on idf.social
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Dr. Victoria Grinberg @vicgrinberg.mastodon.social.ap.brid.gy · 13/05/2026
I have a bit of time on my hands, so let's do another 24h round of #AskAnAstrophysicist, but this time it's a thematic one. ⭐ What do you want to ask an astrophysicist about stars? ⭐ (I am a professional astrophysicist, part of whose work concerns itself with high mass stars & their winds and […]
mastodon.social
Original post on mastodon.social
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Ruth Mottram @ruth-mottram.fediscience.org.ap.brid.gy · 13/05/2026
Well, this was tremendous fun from the @BBC_News_Labs Listen out for the Babylonian gig economy... In Our Time: The Code of Hammurabi Episode webpage: www.bbc.co.uk/programmes/m002r4v1 Media file […]
fediscience.org
Original post on fediscience.org
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Ruth Mottram @ruth-mottram.fediscience.org.ap.brid.gy · 11/05/2026
Life without US tech - giftarticle.ft.com/giftarticle/acti…
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Prof. Sam Lawler @sundogplanets.mastodon.social.ap.brid.gy · 11/05/2026
[rambling grumpy thoughts] This ramble is really to commiserate with everyone who's tired of fighting whatever your fight is. Because, holy shit, there's so much awful stuff to fight right now. Keep fighting. Thank you.
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Prof. Sam Lawler @sundogplanets.mastodon.social.ap.brid.gy · 11/05/2026
A scary quick calculation: there are 10,375 Starlink satellites in orbit planet4589.org/space/con/conlist.ht…, all coming down within 5 years. That's an *average* of 5 or 6 a day for the next 5 years. And the v2's are bigger than the v1's. v2's are (conservatively) 1000kg and […]
mastodon.social
Original post on mastodon.social
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Dr. Victoria Grinberg @vicgrinberg.mastodon.social.ap.brid.gy · 27/04/2026
Aww ... So someone who heard my outreach talk (likely at the @clubdiscordia last Thursday) chatted with someone else and suddenly I have an email in my inbox from someone teaching at an art/design school about using some of my illustration as examples in their course. 🥰 I love chance and things […]
mastodon.social
Original post on mastodon.social
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Prof. Sam Lawler @sundogplanets.mastodon.social.ap.brid.gy · 21/04/2026
I also got a few nice aurora photos last night before it totally clouded up!
A nighttime view of a pond and clouds across the sky, with some bright green auroras peeking through the clouds low on the horizon, reflected in the pond.  A few stars are visible above the auroras between the clouds.A nighttime view looking out over rather flat fields, with green auroras visible low on the horizon, between clouds which cover most of the sky.
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Dr. Victoria Grinberg @vicgrinberg.mastodon.social.ap.brid.gy · 20/04/2026
Victorias "Deutschland-Tour": Berlin, 23. April, Deutsch: berlin.ccc.de/datengarten/116 Berlin, 24. April, Englisch: chaos.social/@cbase/116432684370050… Nürnberg, 29. April, Deutsch […] [Original post on mastodon.social]
Cover meines Buchs "Schwarze Löcher: Schwere Kost, leicht gemacht"
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 18/04/2026
I was today years old when I learned that scientists from the 17th century had their own form of "preprints" to lay claim to ideas before they got them officially published. Galileo wrote in a letter to Kepler "Haec immatura a me iam frustra leguntur o.y.", in English "These are now too young […]
fediscience.org
Original post on fediscience.org
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Prof. Sam Lawler @sundogplanets.mastodon.social.ap.brid.gy · 19/04/2026
Sending peace.
A sunset sky, fading from dark blue down through yellow to orange, with a silhouetted barn outline below bright Venus and the smiling crescent moon, with snow barely visible on the ground below.
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Prof. Sam Lawler @sundogplanets.mastodon.social.ap.brid.gy · 18/04/2026
Upside to 2am barn checks for the #BabyGoatCountdown: there were full-sky auroras! (It *finally* wasn't cloudy, yay)
Somewhat chaotic looking auroras, all converging on a point at the zenith, making a weird spiraly pattern.  The auroras are a weird mix of pink and green.Looking down a snowy road toward a flat horizon with pink, yellow, and green auroras splashed across the sky overhead, and some silhouetted spruce trees on each sidePink and green chaotic auroras splashed across the sky above a barn, silhouetted.
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petersuber @petersuber.fediscience.org.ap.brid.gy · 18/04/2026
Update. "How France’s #Mistral Built A $14 Billion AI Empire By Not Being American." www.forbes.com/sites/iainmartin/202… #AI #DataSovereignty #France #OpenSource #USPol #USPolitics
forbes.com
How France’s Mistral Built A $14 Billion AI Empire By Not Being American
Paris-based Mistral wanted to develop a top-tier AI model to rival OpenAI and Anthropic. That didn’t work out. But it turns out lots of folks don’t care if the AI is bleeding edge – as long as it wasn’t made in America or China.
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Prof. Sam Lawler @sundogplanets.mastodon.social.ap.brid.gy · 15/04/2026
A journalist in Brazil asked me for a satellite light pollution map for São Paulo with SpaceX's awful million "AI data center" satellite plan. So, here you go. Compared with Starlink, which isn't visible at all from latitude 23 south on the summer solstice […] [Original post on mastodon.social]
Two all-sky plots showing how many satellites would be visible and where they would be on the sky.  The left plot shows SpaceX's million data center idea, which has loads of bright dots arranged in a grid.  The right plot shows Starlink, with basically nothing visible.
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Dr. Victoria Grinberg @vicgrinberg.mastodon.social.ap.brid.gy · 10/04/2026
Wie cool ist das denn! Ein sehr schönes Review meines Buches auf astronomie.de 🤩 ▶️ www.astronomie.de/aktuelles-und-neu… #astronomie #WissKomm
astronomie.de
Schwarze Löcher – Schwere Kost, leicht verdaulich
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Prof. Sam Lawler @sundogplanets.mastodon.social.ap.brid.gy · 08/04/2026
The Royal Tyrrell Museum is probably the best museum I've ever been to. Completely unapologetic, fully scientific presentations on evolution, Earth's history, extinction, and it even ends with a powerful statement on climate change. With the added bonus of […] [Original post on mastodon.social]
A huge museum hall, completely full of gigantic dinosaur skeletons.  There are probably 20 skeletons visible, ranging from cat-sized to house-sized.
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Tatjana Scheffler @tschfflr.fediscience.org.ap.brid.gy · 07/04/2026
Fantastic 2.5 year postdoc working on 🤩emojis🤩 ! Are you a #linguist with experience in running experiments in formal semantics & pragmatics? Please come join our lab and the @vicom visual communication research cluster! Apply by April 28 - or contact me with questions. #emojis #linguistics #job […]
fediscience.org
Original post on fediscience.org
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Ruth Mottram @ruth-mottram.fediscience.org.ap.brid.gy · 08/04/2026
This whole thread. It's a love letter to the Fediverse.. mastodon.social/@_elena/11636837923… _elena@mastodon.social - Dear Fedi friends, Next week I have the honor of doing a presentation advocating for the Fediverse in a really prestigious venue (I can't share more now, but I […]
fediscience.org
Original post on fediscience.org
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Dr. Victoria Grinberg @vicgrinberg.mastodon.social.ap.brid.gy · 09/04/2026
Und der Vortrag in Stuttgart ist endlich auch offiziell auf der Webseite des Planetariums angekündigt 💫 ▶️ www.planetarium-stuttgart.de/starts… Freitag, 8. Mai 2026, 20:00 Uhr (In Nürnberg bin ich am 29. April, in Berlin am 23. und 24.) #astrodon #WissKomm […]
mastodon.social
Original post on mastodon.social
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Stefan Bohacek @fediverse.stefanbohacek.online · 09/04/2026
"We’re focused on user privacy, and this means that we have very limited analytics to inform decisions. We also believe in community-driven design, and we want to be transparent about our thinking as we build new features. Our small team is counting on the insights from your experiences as you […]
stefanbohacek.online
Original post on stefanbohacek.online
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Florian Marquardt @fmarquardtgroup.fediscience.org.ap.brid.gy · 02/04/2026
Together with Clara Wanjura, we are delighted to announce the second instalment of our workshop on neuromorphic computing taking place 10-12 June at the @MPI_ScienceOfLight Max Planck Institute for the Science of Light in Erlangen, Germany. 👉 Registration and abstract submission will be open […]
fediscience.org
Original post on fediscience.org
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