Falstad's Interactive Physics and Math Applets: Visualize Waves, Quantum Mechanics, and More

Falstad Math and Physics Simulations

Paul Falstad's collection of educational applets brings math, physics, and engineering concepts to life through interactive simulations. Originally written in Java, most have been converted to JavaScript, making them accessible in any browser. Explore wave motion, acoustics, signal processing, electromagnetism, quantum mechanics, linear algebra, vector calculus, thermodynamics, mechanics, and more. Each applet offers a hands-on way to visualize complex phenomena, from ripple tanks and Fourier series to hydrogen atom orbitals and Lagrange points. The site also links to other valuable educational resources and simulations.