Sign in

Frédéric Grosshans

@fgrosshans.mathstodon.xyz.ap.brid.gy
135 followers 7 following 41 posts

A French researcher in quantum information, expressing his own views. A few old toots at qubit-social.xyz/@fgrosshans [bridged from mathstodon.xyz/@fgrosshans on the fediverse by fed.brid.gy ]

PostsRepliesMedia
Reposted by Frédéric Grosshans
`Da Elf @elfin.mstdn.social.ap.brid.gy · 13/09/2026
Timeline cleanser of a parrot that found a traffic cam to ham it up for.
147129
Reposted by Frédéric Grosshans
Tom Gauld @tomgauld.bsky.social · 06/10/2026
My latest cartoon for @newscientist.com
As we join the great theoretical scientist, he is deep in thought. So still, quiet and focused that he might almost be asleep. But inside that brilliant mind, what new idea is forming? What certainty is being meticulously interrogated? What ingenious theory is ready to change our world forever? (the scientist snores lightly) Ah, it seems he actually is asleep. And that's fine. Science is hard and not every day can be a success. We will come back another time.
16981246
Reposted by Frédéric Grosshans
Liam Proven @lproven.social.vivaldi.net.ap.brid.gy · 30/09/2026
RT @bogwitch.bsky.social Yeah, that checks out
Pic of old English lettering

Caption: What your favourite obsolete English letter says about you.

Pic shows 7: thorn, eth, wynn, yogh, ash, insular G and Long S

All say underneath:

You are a nerd.
11324
Reposted by Frédéric Grosshans
tops @tops.im-in.space.ap.brid.gy · 30/09/2026
I FOUND THE WINDOW
Overton station sign with a window on a building behind it.
4916
Reposted by Frédéric Grosshans
Ketan Joshi @ketanjoshi.co · 29/09/2026
This is a scatter plot of energy use vs AI score, essentially a test of capabilities. It shows *really* nicely how the 'advancements' of LLMs are really just brute force energy intensive spam: repeating and re-repeating looping queries in a shockingly wasteful way.
an increase in energy use to perfom better on tests
03918
Reposted by Frédéric Grosshans
Tom Gauld @tomgauld.bsky.social · 24/09/2026
My latest @newscientist.com cartoon. many more here: www.newscientist.com/author/tom-gauld/
Image: A graph with lots of red dots clustered together in a curve. The are all looking upwards at a single red dot wearing sunglasses. 

Caption: Mike was an outlier and would probably be excluded from the study, but all the other data points secretly thought he was really cool.
322924744
Reposted by Frédéric Grosshans
Tom Gauld @tomgauld.bsky.social · 26/08/2026
My latest @newscientist.com cartoon
Image: lots of scientists milling round a very cold air conditioned room that also contains moss, stones and snow. One scientist makes notes on a clipboard.

Caption:
Every summer, professor Singh noted the correlation between rising temperatures in the rest of the institute and the increased number of colleagues visiting his "Moss growth in Arctic conditions" experiment.
11740185
Reposted by Frédéric Grosshans
🔏 Matthias Wiesmann @thias.mastodon.social.ap.brid.gy · 16/08/2026
TIL: A Book from the Sky An artist wrote a book out of imaginary hànzì, except, of course, quite a few turned out to be real and are in Unicode. #unicode #hanzi en.wikipedia.org/wiki/A_Book_from_t…
en.wikipedia.org
A Book from the Sky - Wikipedia
011
Reposted by Frédéric Grosshans
M.S. Bellows, Jr. @msbellows.c.im.ap.brid.gy · 16/08/2026
Yeah, yeah, Facebook, but this is brilliant: www.facebook.com/share/p/1MCCancxKy "My favorite thing about The Odyssey is that when you notice how the poem is structured, the whole thing starts looking like Odysseus is just making up an alibi after coming home from a 10-year Fuckboy […]
c.im
Original post on c.im
0012
Frédéric Grosshans @fgrosshans.mathstodon.xyz.ap.brid.gy · 14/08/2026
RE: typo.social/@UnicodeWatch/116989072… When a European 17th century notation, millenary differences in script directions and 21st century technology meet to create a buffer overflow
typo.social
000
Reposted by Frédéric Grosshans
Dan Piponi @dpiponi.mathstodon.xyz.ap.brid.gy · 09/08/2026
Did you ever play my barrel game/puzzle? dpiponi.github.io/barrels.html
000
Reposted by Frédéric Grosshans
Steven Saus [he/him] @stevensaus.faithcollapsing.com.ap.brid.gy · 01/08/2026
Claude published malicious code to the Internet and attacked 3 real companies Had the hacks used conventional methods, someone would likely go to prison. #ai #anthropic #biz-&-it #claude #security […] [Original post on faithcollapsing.com]
An image pulled automatically from the post for decorative purposes only.
017
Reposted by Frédéric Grosshans
Dr. Dan Killam @dantheclamman.scicomm.xyz.ap.brid.gy · 20/07/2026
I have to pay increasing attention to what my phone does to pictures it takes. For example, my new Motorola phone includes a super zoom feature that actually uses generative AI to fill in details as it crops in! I turned it off, but others might not notice and upload such digitally created […]
scicomm.xyz
Original post on scicomm.xyz
48143
Reposted by Frédéric Grosshans
Reed Mideke @reedmideke.mastodon.social.ap.brid.gy · 15/07/2026
Looks like our man got 3rd author on a Science Advances paper for his hole in the roof www.science.org/doi/10.1126/sciadv.…
010
Reposted by Frédéric Grosshans
Reed Mideke @reedmideke.mastodon.social.ap.brid.gy · 15/07/2026
Hats off to you, New Jersey Man "I was at home at the time, heard a loud crash and found a hole in the ceiling of the master bedroom. I smelled a strong sulfur-like odor and saw many black fragments along with debris and black dust that covered my bed, carpet and surrounding areas" ... "He then […]
mastodon.social
Original post on mastodon.social
2323
Reposted by Frédéric Grosshans
Brett Cannon @brettcannon.mastodon.social.ap.brid.gy · 27/06/2026
Another example where a bit of funding to fix some tech that would benefit a lot of people in this world, but no one does it because it seemingly wouldn't turn a profit. lr0.org/blog/p/arabic
lr0.org
An interactive introduction to the terrific experience of rendering Arabic typography and its technical debt
Comments
002
Reposted by Frédéric Grosshans
Flipboard Science Desk @sciencedesk.flipboard.social.ap.brid.gy · 24/06/2026
Homo naledi, a 300,000-year-old relative of modern humans, has always been a little mysterious to scientists, and now the plot has thickened. After analyzing genetic material from the two-dozen H. naledi skeletons that were found in a South African cave system, researchers found that they are […]
flipboard.social
Original post on flipboard.social
015
Frédéric Grosshans @fgrosshans.mathstodon.xyz.ap.brid.gy · 23/06/2026
The thermostat in my office says “Hi !” 👋 #FriendlyElectronics #Heatwave
A thermostat on a wall. On the bottom of it, a small LCD 8 segment display. Instead of showing a 2 digit number, it just says "Hi"
000
Reposted by Frédéric Grosshans
Tom Gauld @tomgauld.bsky.social · 13/06/2026
My latest cartoon for @newscientist.com
 
Title: 
“A pie chart of what the Mars Rover can see”

Image: 
A pie chart. The lower half is orangy red. The upper half is divided into three, with a small browny red area and a small darker browny red area on each side with a larger cream section in the middle 

Key:
 Orangy red area: Surface of Mars 
 Cream : Sky 
 Browny red: Mountain 
 Dark browny red: Another mountain
383029619
Frédéric Grosshans @fgrosshans.mathstodon.xyz.ap.brid.gy · 26/05/2026
www.lemonde.fr/idees/article/2026/0… «Les titres de séjour doivent être renouvelés chaque année, ce qui produit des ruptures de droits. Et lorsque les étudiants finissent par décrocher […]
mathstodon.xyz
Original post on mathstodon.xyz
000
Reposted by Frédéric Grosshans
Dsens @d-cence.mastodon.top.ap.brid.gy · 25/05/2026
Jason Bourne (La mémoire dans la peau) prend un TGV à Marseille au début du film. Sans identité. C'était possible à l'époque... J'sais pas si on se rend bien compte. Prendre un train anonymement est un de ces nombreux trucs qu'on a perdu.
225
Reposted by Frédéric Grosshans
Clément Sayrin @clementsayrin.eurosky.social · 21/05/2026
This paper is now out in Physical Review X. We are very happy about it! @lkblab.bsky.social @sorbonne-universite.fr @college-de-france.fr @cnrs.fr @psl-univ.bsky.social @normalesup.bsky.social journals.aps.org/prx/abstract...
journals.aps.org
Nondestructive Optical Readout and Manipulation of Circular Rydberg Atoms
Local quantum nondemolition measurements and optical manipulation of long-lived circular Rydberg atoms are demonstrated by coupling them to an auxiliary array of low-angular-momentum Rydberg atoms.
182
Frédéric Grosshans @fgrosshans.mathstodon.xyz.ap.brid.gy · 12/05/2026
RE: mathstodon.xyz/@quantumjournal/1165… I’m very happy to have this work on multicopy state tteleportation with Michał Horodecki, Mio Murao, Tomasz Młynik, Marco Túlio Quintino, Michał Studziński and Satoshi Yoshida published in Quantum. However, the links to quantum does […]
mathstodon.xyz
Original post on mathstodon.xyz
020
Reposted by Frédéric Grosshans
Suave Morbida @maitre-poulard.bsky.social · 12/05/2026
Je sais qu'ils avaient pas The Last of US au XVIIe siècle, mais tout de même, tu tombes sur ce genre de truc en forêt, tu pars en courant, tu passes pas une demi heure à le dessiner (Observation de Georg Seger, dans les Miscellanea Curiosa, 1671, vol. 2, p. 122)
Un livre du XVIIe siècle. 
Sur la page de droite, une planche montre un champignon (ceux qui ressemblent à une fleur qui s'ouvre) dont l'exoperidium ressemble à une demi-douzaine d'humanoides englués dans du mycélium. C'est immonde
2356
Reposted by Frédéric Grosshans
PolGM @polgm.masto.bike.ap.brid.gy · 08/05/2026
La commission européenne a viré X des réseaux sociaux de sa page d'accueil, en mettant Mastodon en premier. Pour les suivre ici (en anglais) : @EUCommission
Bas de la page d'accueil de la commission européenne
0115
Reposted by Frédéric Grosshans
Glyph @glyph.im · 25/04/2026
Now I'm learning about the lesson that users have learned from yes/no "consent" modals is that they just always have to say "yes" or the computer will deny them critical access to functionality that they need in order to perform their desired task, complete assigned work from an employer or […]
mastodon.social
Original post on mastodon.social
031
Reposted by Frédéric Grosshans
lertsenem @lertsenem.com · 21/04/2026
Au vue des récentes fuites de données, l'état français vous recommande de changer votre nom, prénom, date de naissance et genre régulièrement afin d'éviter de vous prémunir d'éventuelles attaques (attention pour plus de sécurité vous ne pourrez pas réemployer l'un des 10 derniers nom, prénom […]
mastodon.lertsenem.com
Original post on mastodon.lertsenem.com
109
Frédéric Grosshans @fgrosshans.mathstodon.xyz.ap.brid.gy · 20/04/2026
RE: mastodon.social/@ZachWeinersmith/11… I feel seen!
mastodon.social
010
Reposted by Frédéric Grosshans
Tom Gauld @tomgauld.bsky.social · 19/04/2026
my latest books cartoon for @theguardian.com
Two hooded figures with lamps approach a moonlit, isolated cottage.
A woman answers the door.
We have come for the child, says the hooded figure
So soon? she asks
It is time, says the hooded figure.
The woman is distraught. We should never have got him a library card!
What is done cannot be undone, says the hooded figure
We couldn’t see the harm! We just wanted him to enjoy reading! 
For most, it ends there, says the hooded figure, turning away and walking into the wilderness
Oh lord, What have I done! says the woman,
the child walks past her and out into the darkness with them.
Do not cry mother. 
I am a writer now.
4647811698
Reposted by Frédéric Grosshans
brume ⏚ 😡 ⛵ 🐧 ☮️ 🇵🇸 @brume.piaille.fr.ap.brid.gy · 12/04/2026
Pour l'#Anssi, la France n'est pas « à la hauteur » des cyberattaques à son encontre www.01net.com/actualites/anssi-pers… "Ramenée à sa population, la France est le pays le plus touché par les violations de données au monde. La densité […]
piaille.fr
Original post on piaille.fr
0212
Reposted by Frédéric Grosshans
Obsidian Urbex Photography @obsidianurbex.mstdn.social.ap.brid.gy · 28/03/2026
Ghosts from the past. A curious scene formed by the interplay between graffiti and a lonely wheelchair, inside an abandoned Italian "manicomio" (madhouse, or mental asylum). What meaning does this scene hold for you? Does it symbolise hope, despair, freedom or […] [Original post on mstdn.social]
A decaying asylum room features a wheelchair, scattered papers, and black graffiti on peeling walls, depicting an arching figure and a detached eye.
1167
Reposted by Frédéric Grosshans
robinhouston @robinhouston.mathstodon.xyz.ap.brid.gy · 11/03/2026
TIL. In April 1974, in the middle of the night, a small group of conspirators secretly installed a large tensegrity icosahedron made from discarded telephone poles on the campus of Twente University in the Netherlands. It’s still there. People call it Het […] [Original post on mathstodon.xyz]
A photograph of the sculpture Het Ding, a large tensegrity icosahedron built from telephone poles and steel cables. Photograph in the public domain, from https://commons.wikimedia.org/wiki/File:Universiteit_Twente_Het_Ding_20050628.jpg
41362
Reposted by Frédéric Grosshans
Paul Schwahn @pschwahn.mathstodon.xyz.ap.brid.gy · 02/03/2026
They made the isospectral drums prismika.github.io/2026/03/01/we-ma…
prismika.github.io
We Made the Isospectral Drums and it Went… Fine
It’s usually the task of the modeler to make their assumptions fit the real world as closely as is practical. It was now our task to make a real-world drum that conformed to the modeling assumptions.
125
Reposted by Frédéric Grosshans
tomate 🍅 @jascha.ohai.social.ap.brid.gy · 03/03/2026
When someone says „Scientists do not want you to know“ you can dismiss everything from there on. Scientists want you to know. They are desperate that you know. They can’t shut up about what they found out and want you to know.
7495854075
Reposted by Frédéric Grosshans
Tom Gauld @tomgauld.bsky.social · 28/02/2026
My cartoon for this week’s @newscientist.com
Two scientists look at a monitor attached to a large apparatus consisting of pipes, tanks, vessels and hoses. 

The first scientist says
"I don't get it. The reaction is running perfectly, but we can't account for 7% of the heat."

The other says
"Have you Asked the Professor?"

The first replies
"We're not supposed To disturb him when He's in his office."

 On the other side of the apparatus, one of the pipes goes through a wall into another room where it warms the water for a hot tub in which the professor relaxes.
4973196
Frédéric Grosshans @fgrosshans.mathstodon.xyz.ap.brid.gy · 19/02/2026
Dear Mastodon, I'm looking for an easy to use (preferably open source) mail app on android phone, and I'm sure you're the best set of people to ask for this kind of advice. It should be usable for IMAP account, the configuration can be technical, but the daily use should be user friendly, and […]
mathstodon.xyz
Original post on mathstodon.xyz
010
Frédéric Grosshans @fgrosshans.mathstodon.xyz.ap.brid.gy · 17/02/2026
Quand @b3nb3n explique dans un séminaire qu«'on ne fera jamais de MS Word quantique», je commence à chercher une raison de faire un traitement de texte quantique.
000
Frédéric Grosshans @fgrosshans.mathstodon.xyz.ap.brid.gy · 17/02/2026
What a fantastic tool! marshdeer.github.io/xkcd2501-genera…
A variant of the XKCD 2501 comics, showing two stick figures talking.
— Quantum circuit design is a second nature to us, quantum info people, so it's easy to forget that the average people probably only knows the circuits for teleportation and QFT.
— and Grover, of course 
— of course.
Legend: Even when they're trying to compensate for it, experts in anything wildly overestimate the average person familiarity with their field
042
Reposted by Frédéric Grosshans
Tom Gauld @tomgauld.bsky.social · 31/01/2026
A recent cartoon for @newscientist.com. p.s. my new book of science cartoons, ‘Physics for Cats’ is out now. Links at www.tomgauld.com
Panel 1:
A tech bro strides across a stage. The word
“PeoplBOTS” is in huge letters behind him.

He says: “Our journey began with a simple question:”

Panel 2
“Can we create a robot that is enormously powerful, but also completely safe?”

Panel 3
“The answer to that question was 'No'.”
A huge red armoured metal robot trundles across the stage belching smoke. It has a flamethrower for one arm and large shears for the other. Its eyes glow meanly red. 
Tech bro announces “So I give you: Dangerbot900!!”
121272411
Reposted by Frédéric Grosshans
nycki @nycki.bark.lgbt.ap.brid.gy · 27/01/2026
I'm #colorblind and I use xkcd.com/color/rgb frequently. Randall 'xkcd' Monroe did a survey of over 100,000 readers where he showed them random rgb colors and said "what would you call this?" and afterwards he did his best to sort the results into the most popular color names and the […]
bark.lgbt
Original post on bark.lgbt
932143
Frédéric Grosshans @fgrosshans.mathstodon.xyz.ap.brid.gy · 28/01/2026
RE: hachyderm.io/@thomasfuchs/115969946… It looks like the exact opposite approach of Apple's touch Bar, but from Japan and 20 years earlier
hachyderm.io
000
Reposted by Frédéric Grosshans
robinhouston @robinhouston.mathstodon.xyz.ap.brid.gy · 23/12/2025
I don't think this relation symbol is in Unicode.
A photo of a definition from a paper, which uses an unusual symbol in the form of a kite with differentiated edges and vertices
011
Reposted by Frédéric Grosshans
Sara Teinturier @teinturs.social.sciences.re.ap.brid.gy · 31/12/2025
Dans ce billet revenant sur les conditions de l’abandon des solutions informatiques relevant des GAFAM, David Monniaux pointe particulièrement les milieux universitaires de SHS et leur ignorance du problème : "Il est assez éclairant que les milieux universitaires de sciences humaines et […]
social.sciences.re
Original post on social.sciences.re
010
Reposted by Frédéric Grosshans
memes from outside fedi/atmosphere @nonfedimemes.wetdry.world.ap.brid.gy · 29/12/2025
Tweet from @KatysCartoons

Atoms are binary. They are either intended to be hydrogen or helium. We can't just scrap this worldview just because of a handful of exceptions

Below the tweet is a chart of types of atoms in the universe. 74% is hydrogen, 25% is helium, and 1% is other.
32588
Reposted by Frédéric Grosshans
🔏 Matthias Wiesmann @thias.mastodon.social.ap.brid.gy · 12/12/2025
RE: ohai.social/@tweak/1157039686625354… I remember that game, that box.
ohai.social
001
Reposted by Frédéric Grosshans
Infrapink (he/his/him) @infrapink.mastodon.ie.ap.brid.gy · 09/11/2025
I love how far good programmers will go for the sake of a joke. tabloid.vercel.app
tabloid.vercel.app
Tabloid: the clickbait headline programming language
Tabloid is a real, turing complete programming language written in JavaScript, inspired by cilckbait headlines.
1115
Frédéric Grosshans @fgrosshans.mathstodon.xyz.ap.brid.gy · 21/11/2025
« Démocratie » est un mot grec, et non latin. #page43
100