Emmanuel Díaz

PhD Researcher in Theoretical Physics | Field Theory & Particle Physics
@ubbchile, @Unicordoba_col, @UNIRuniversidad, @UNALOficial

[Physics In History @PhysInHistory]

There is a type of quasiparticle, called a semi-Dirac fermion, that exists in a bizarre state where it has mass when moving in one direction but is massless when moving in a perpendicular direction.

First predicted 16 years ago, physicists finally observed this behaviour in 2024 within a crystal of zirconium silicon sulfide (ZrSiS).

[Physics In History @PhysInHistory]

One of the best ways to sharpen your brain, and to develop intelligence, is to study mathematics. It challenges and strengthens your mind in a way that very few other things do. It’s like going to the gym -- but for your brain!

- Danica McKellar

[Martin Bauer @martinmbauer]

Short explanation of the physics Nobel Prize 2025

In classical mechanics you can know where a particle is and its momentum at the same time. In Quantum mechanics you can't. All information is in the wavefunction. Even if a particle is trapped, part of the wavefunction..

🧵1/7

[Fermat's Library @fermatslibrary]

Why Super-Earthlings Might Never Reach the Stars

In the rocket equation, the fuel required to reach orbit grows exponentially with gravity. If Earth’s gravity were 15% stronger, space programs would likely be impossible.

[Alejo @ecommartinez]

Comparto mi prompt para humanizar un texto generado por ChatGPT..

[Math Files @Math_files]

Gaussian or Laplace integral

[Math Cafe @Riazi_Cafe_en]

Pick's Theorem https://t.co/neIuuUBBfy

[Martin Bauer @martinmbauer]

Correct! Just as a reminder: this is what a Transformer found after looking at 10M solar systems

[Physics In History @PhysInHistory]

Use of Sun and Stick for direction. ✍️

1. Place a stick upright in the ground.
2. Mark the tip of the shadow cast by the Sun.
3. Wait 15-30 minutes, then mark the new shadow tip.
4. Draw a line between the two points — this line runs East-West.
5. The first mark is West; the second mark is East.

[Didier 'Dirac's ghost' Gaulin @DiracGhost]

A primer on Einstein's field equation in 11 pages (MIT)

Also publicly available is David Tong's chapter (4) on general relativity and the Einstein's field equation, over at Cambridge University's website.

🔗👇

[Enséñame de Ciencia @EnsedeCiencia]

Tips matemáticos que te salvarán más de una ocasión

[Physics In History @PhysInHistory]

Green’s theorem, Stoke’s theorem, and Gauss Divergence theorem ✍️

[Enséñame de Ciencia @EnsedeCiencia]

Este es el tiempo que le tomaría a un avión comercial llegar a cada uno de los planetas, viajando a 900 km/h

[Physics In History @PhysInHistory]

Maxwell's equations, formulated by James Clerk Maxwell in the 1860s, are four fundamental equations that describe how electric and magnetic fields interact and propagate. They unify previous discoveries in electromagnetism, including Coulomb's law, Ørsted's discovery of the magnetic field around a current, Ampère's law, and Faraday's law of induction. Maxwell's introduction of the displacement current completed the theoretical framework, predicting that electromagnetic waves travel at the speed of light and thus revealing the electromagnetic nature of light itself. Oliver Heaviside later simplified Maxwell's original 20 equations into the four vector equations used today, which underpin modern technologies such as radio, television, and telecommunications.

[𝐒𝐫𝐢𝐧𝐢𝐯𝐚𝐬𝐚 𝐑𝐚𝐠𝐡𝐚𝐯𝐚 ζ(1/2 + i σₙ )=0 @SrinivasR1729]

I recommend Understanding Mathematical Concepts in Physics because it explains tough ideas in plain language, links the math to real-world physics, and gives short code examples you can try right away. It’s perfect if you like learning a concept and then testing it yourself on a computer.

[Physical Review Letters @PhysRevLett]

A new way to understand memory: Random Tree Model of Meaningful Memory
"random trees…represent narratives as hierarchies of key points… aligns with observations from large-scale narrative recall experiments."
Letter: https://t.co/2ouy3j0vOd
PhysMag: https://t.co/LlSKSFsJIu

[Jen Zhu @jenzhuscott]

34 years old Chinese math genius Prof Wang Hong, solved the infamous mathematical conundrum - the dimensional Kateya Conjecture in 3 dimensions, positions her a strong contender for 2026 Fields Medal.

It’d be the 3d female winner of Fields Medal in history.

[Akshat @star_stufff]

book so thicc it curves spacetime

[sunny @thePiggsBoson]

NASA simulation for airflow around an aircraft during takeoff and landing