frédéric DESCHAMPS

[DFRobot @dfrobotcn]

An open-source robot vacuum you build yourself — Raspberry Pi, ROS 2, 2D LiDAR, Home Assistant, 3D printed chassis. No cloud, fully local.

oomwoo is early stage and building in public. The community can contribute modules in parallel — from SLAM navigation to dust bin design.

https://t.co/ip0HWptZg0

#ROS2 #RaspberryPi

[Linda Xie @lindaxie]

Chaos has def been the most fascinating topic for me within classical mechanics so going to take some time to go deeper on it! Plus the visualizations are beautiful

[Science Étonnante @SciencEtonnante]

Nouveau billet ! PEUT-ON REFROIDIR UN DATA CENTER DANS L’ESPACE ?

On a entendu tout et son contraire, affirmé de façon péremptoire sur le sujet. Essayons de voir ce qu’en dit la physique !

[Math Hub @mathhub_vn]

The Dirac matrices (more commonly called gamma matrices) are a set of matrices introduced by Paul Dirac in his formulation of the Dirac equation.

They are fundamental in quantum mechanics and quantum field theory, especially for describing spin-½ particles such as the electron.

Paul Adrien Maurice Dirac (1902–1984) was one of the greatest theoretical physicists of the 20th century. He made groundbreaking contributions to quantum mechanics and quantum electrodynamics, and is regarded as one of the founders of modern physics...

[Actualité sur l'intelligence artificielle ia @actu_ia]

Des chercheurs d'Oxford et Cambridge ont publié dans Nature une étude sur le "Model Collapse" : les modèles d'IA entraînés sur du contenu généré par IA perdent progressivement les données rares et créatives des sources humaines. https://t.co/GBZhLdYmHH

[María (MatesSinDramas) @matessindramas]

Así funciona el algoritmo de Dijkstra

[Quant Science @quantscience_]

This 17 page pdf reveals the same technique Hedge Funds like Jim Simons' Renaissance Technologies use to find signal through noise.

Stanford released the complete Hidden Markov Model framework for everyone to use it.

Bookmark it before someone takes it down:

[0x鸣人 @LuBtc888]

有人问黄仁勋：AI会取代人类的工作吗？

没想到黄仁勋的回答震惊了众人。

[Dreams N Science @dreamsNscience]

In 1978, Intel’s 16-kilobit DRAM chips started flipping bits for no apparent reason.
What was silently corrupting memory at the atomic level?

🎥 veritasium

[Ayaan 🐧 @twtayaan]

The creator of Linux just publicly called out the AI hype. Word for word.

Linus Torvalds took the stage at Open Source Summit 2026 and said this:

"When I see people saying 99% of our code is written by AI, I literally get angry. Because those same people — I can pretty much guarantee — 100% of their code is written by compilers. But they never say that."

He is not anti AI. The Linux kernel saw a 20% jump in submissions this release because of AI tools. He uses it. He gets it.

His point is something most people are too afraid to say.

AI is a productivity tool exactly like compilers were. Compilers boosted programming by 1000x. AI adds another 10x on top. Enormous. But nobody says "the compiler wrote my code." So why are we saying AI wrote it?

He also flagged something nobody is talking about.

AI is flooding small open source projects with drive-by bug reports. Someone runs a prompt, files a report and disappears when asked for a patch. Maintainers with one or two people are drowning trying to keep up.

"Sometimes AI reports a bug and when you ask for more information the person has done that drive-by and does not even answer your question. That is the real burnout issue."

And his final warning was the sharpest of all.

"People who do not understand the complexity of systems will prompt systems and write processes that will fail."

The AI hype crowd is very loud right now.

Linus has been building real systems for 35 years. When he talks, engineers listen.

Full interview here:
https://t.co/LmXJtvKc4O

[Science Simplified @Scivf4]

This is what the AI brain looks like.

[THIERRY D "ardéchois et français" @ThierryTout]

La française Florence Aseult mérite d'être mise en avant pour son don artistique de l'enluminure.
Voici une page de manuscrit intitulée "La Passion du Christ", qu'elle peint à la main sur du parchemin de chèvre selon la tradition médiévale.
Magnifique !🤩
(🎥aseultenluminure/IG)

[Mathematica @mathemetica]

Unlock the core of vector calculus with this visual guide.

The Del operator (∇) drives three key operations on fields:
- Gradient (∇Φ) points to the steepest increase of a scalar;
- Divergence (∇ · F) quantifies net outflow or inflow;
- Curl (∇ × F) measures local rotation.

> Gauss’s Divergence Theorem states
∯_S F · dA = ∭_V (∇ · F) dV, relating surface flux to volume divergence.
> Stokes’ Theorem, ∮_C F · dl = ∬_S (∇ × F) · dA, relates circulation around a curve to curl over the surface.

These are foundational in electromagnetism, fluid dynamics, and engineering.

[0xDipper @Dipper_pol]

Nassim Taleb just laid out the single most important rule in fat-tail statistics:

"work with alpha, not the mean"

The mean is not a valid variable for power-law distributions.

The estimator of alpha, however, is beautifully Gaussian - and that's your way in.

Free talk. No paywalls.

[Aliaksandr Valialkin @valyala]

This is a foundational publication which taught me how to optimize code for speed on modern computers. CPUs are bottlenecked by slow memory access most of the time. Optimize the code for memory access and get >10x performance improvements.

I've read this publication ~19 years ago at https://t.co/oT6plLunJu - https://t.co/TaAW7GRdre

[Abakcus @abakcus]

25 Beautiful Mathematical Documentaries to Make Students Love Math 📽️

https://t.co/IQgt8KWzsd

[frédéric DESCHAMPS @Fred_31]

@GrandpaRoy2 @three_cube 6809 processor