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Learn, visualize, and simulate physics

Real-time interactive simulations, notes with drawing, and curated video lessons — built for students, teachers, and engineers.

Physics Modules

Notes, videos, and simulations for each major topic.

Scientifically Accurate

Simulations grounded in real equations. Notes cover core formulas and concepts.

Draw on Notes

Sketch free-body diagrams and graphs directly on topic pages. Stays in your browser.

Completely Free

MIT licensed. No accounts. No tracking. Self-hostable.