I taught JEE Physics for about 10 years — FIITJEE Chennai, then Modulus Hyderabad. Left institutional teaching to build something on my own terms.

The result is an app called Physics with Rakesh. One subject, one teacher, built carefully.

What it has:

Concept videos and MCQ practice — single correct, multiple correct, integer type

Questions split by difficulty: concept level, Mains level, Advanced level

Buoyancy concept is free, do test it to get a feel of the app.

It's not trying to compete with the big platforms. It's just Physics, done properly, by someone who's spent a long time teaching it in classrooms.

If big-platform teaching feels a bit assembly-line, this might be worth trying. The free concept is there.

Happy to answer Physics questions or anything about the app.

Play store app Link: https://play.google.com/store/apps/details?id=com.rakeshmanusani.physics_with_rakesh

A physics simulation of an inverted pendulum on a cart that evaluates three distinct control architectures—PID, LQR and MPC — on their ability to maintain equilibrium and recover from significant external disturbances.

For more videos click instagram.com/craftsandengineering, or tiktok.com/@zoomzoombee

For code click https://github.com/zombimann/Mathematical-video-animations-and-visualization/blob/main/The_Great_Pendulum_Balance_Off_PID_vs_LQR_vs_MPC.ipynb

The Higgs Mechanism, electroweak symmetry breaking, and key particle physics concepts inspired by Feynman Diagrams.

Concepts visualized are:

The Higgs Field
Spontaneous Symmetry Breaking
Gluon Fusion
Higgs Decay to Photons (H → ̳̳)
The Golden Channel (H → ZZ → 4ℓ)
Electroweak Symmetry Breaking

For more animations click www.instagram.com/craftsandengineering

For code and more click https://github.com/zombimann/Mathematical-video-animations-and-visualization/blob/main/Quantum_Physics_Higgs_Mechanism_Feynman_Diagrams.ipynb

Music attribution: Quantum - PHNKR PHONK & Donovan on TikTok music library

An animation of the Feynman Path Integral, visualizing the Principle of Stationary Action.

For more videos click www.instagram.com/craftsandengineering

For code click Mathematical-video-animations-and-visualization/Feynman_Path_Integral_Visualization.ipynb at main · zombimann/Mathematical-video-animations-and-visualization

Inspired by this post on X https://x.com/scievision369/status/2055314591270436884?s=20

Newton's 3rd Law is one of the first things you learn in physics. But what if it's not actually a law it's a consequence of something much deeper?
In this video we derive Newton's 3rd Law from scratch using momentum conservation, then ask the question nobody asks in school: where does momentum conservation even come from?
The answer takes us to Emmy Noether's theorem one of the most profound results in all of physics and reveals that every conservation law you've ever learned is secretly a symmetry of the universe in disguise.
But here's the thing. Noether's theorem is only as strong as the symmetries it assumes. And the universe doesn't always cooperate.
What we cover:

Deriving Newton's 3rd Law from momentum conservation
Why momentum is conserved the real reason
Noether's theorem: symmetry to conservation law
Translational, rotational and time translation symmetry
Why Newton's 1st Law and Noether's theorem have the exact same problem
Where time translation symmetry actually breaks and what that means for energy conservation globally

This is the rabbit hole behind the law your textbook treats as obvious.

A high-fidelity 3D animation illustrating the fundamental geometric principles of Einstein's General Theory of Relativity.

For more videos click: www.instagram.com/craftsandengineering

For code click: https://github.com/zombimann/Mathematical-video-animations-and-visualization/blob/main/General_Relativity_Visualization.ipynb

I'm Dave :) I've been here a couple times before, showcasing my passion project Stella Nova, built in pure Rust using wgpu for rendering. It's a colony management simulator set in a procedurally generated solar system where every object follows real N-body gravitational physics. The custom engine (WarpCore) handles thousands of entities stably at once and ships under 500MB!

Current functional demo systems:

Real Hohmann transfer planning for interplanetary travel
Modular station construction
Citizen AI with state machine behavior (think RimWorld, Dwarf Fortress)
Time dilation control, play with the laws of relativity- Secret programming menu (please ask)

The playable demo just went live on Steam: https://store.steampowered.com/app/4703440/Stella_Nova_Demo/

Happy to answer any architecture or other questions about the project!!

An accurate 3D visualization of electromagnetic energy flow around a current-carrying conductor

For more videos click instagram.com/craftsandengineering/

For code click Mathematical-video-animations-and-visualization/Poynting_Vector_Wire_Energy_Flow_upgraded.ipynb at main · zombimann/Mathematical-video-animations-and-visualization

This post is not about the proof-oriented linear algebra taught in mathematics departments.

Instead, it is a resource on determinants in linear algebra that helps with the algebraic approach to quantum mechanics.

Quantum Physics Series

Video 1 of 6: Quantum Electrodynamics visualization using Feynman Diagrams

Author: Mugambi Ndwiga
In: www.instagram.com/craftsandengineering

This animation visualizes the fundamental interactions of Quantum Electrodynamics (QED) using Feynman diagram conventions. QED is the relativistic quantum field theory of electrodynamics, describing how light and matter interact.

Visualized Phenomena

The animation cycles through six key physical processes:

1. Compton Scattering: A photon hits an electron, resulting in an energy shift and change in direction.
2. Electron-Positron Annihilation: An electron and its antiparticle (positron) collide to produce high-energy photons ().
3. Pair Production: A high-energy photon interacts with the electric field of an atomic nucleus to create an electron-positron pair.
4. Bremsstrahlung (Braking Radiation): A charged particle (electron) is deflected by a nucleus and radiates energy as a photon.
5. Møller Scattering: The interaction and repulsion between two electrons via the exchange of a virtual photon.
6. Vacuum Polarization: A process where a photon temporarily fluctuates into a virtual electron-positron pair, affecting the vacuum's permittivity.

For code and more click Mathematical-video-animations-and-visualization/QED_Feynman_Diagrams_Animations.ipynb at main · zombimann/Mathematical-video-animations-and-visualization

Hi
Excited to be able to announce that QO is almost ready to leave Early Access!! Just now I hit the button for our first actual large patch that covers more than a year of work (lots of analytics, I've been tracking where ppl were getting stuck). Thank you a ton for your support, this game has seen a lot of love from this community. Game is almost done.

If you are interested in a highly intuitive visual method that faithfully describes all universal quantum computing and physics behind, this is for you. I am the Dev behind Quantum Odyssey (AMA! I love taking qs) - worked on it for about 10 years (3.5 in phd), the goal was to make a super immersive space for anyone to learn quantum computing through zachlike (open-ended) logic puzzles and compete on leaderboards and lots of community made content on finding the most optimal quantum algorithms. The game has a unique set of visuals (that was actually my PhD research) capable to represent any sort of quantum dynamics for any number of qubits and this is pretty much what makes it now possible for anybody 12yo+ to actually learn quantum logic without having to worry at all about the mathematics behind.

This is a game super different than what you'd normally expect in a programming/ logic puzzle game, so try it with an open mind.

Stuff covered

• Boolean Logic – bits, operators (NAND, OR, XOR, AND…), and classical arithmetic (adders). Learn how these can combine to build anything classical. You will learn to port these to a quantum computer.
• Quantum Logic – qubits, the math behind them (linear algebra, SU(2), complex numbers), all Turing-complete gates (beyond Clifford set), and make tensors to evolve systems. Freely combine or create your own gates to build anything you can imagine using polar or complex numbers.
• Quantum Phenomena – storing and retrieving information in the X, Y, Z bases; superposition (pure and mixed states), interference, entanglement, the no-cloning rule, reversibility, and how the measurement basis changes what you see.
• Core Quantum Tricks – phase kickback, amplitude amplification, storing information in phase and retrieving it through interference, build custom gates and tensors, and define any entanglement scenario. (Control logic is handled separately from other gates.)
• Famous Quantum Algorithms – explore Deutsch–Jozsa, Grover’s search, quantum Fourier transforms, Bernstein–Vazirani, and more.
• Build & See Quantum Algorithms in Action – instead of just writing/ reading equations, make & watch algorithms unfold step by step so they become clear, visual, and unforgettable. Quantum Odyssey is built to grow into a full universal quantum computing learning platform. If a universal quantum computer can do it, we aim to bring it into the game.

Streams to watch:

khan academy style tutorials on qm/qc: https://www.youtube.com/@MackAttackx

Physics teacher wholesome stream with over 500hs in https://www.twitch.tv/beardhero