SimPhy

What it does

SimPHY is 2D and 3D Physics simulator designed for teachers and students to learn while interacting with them. It has its in built Mechanics, Electrodynamics, Optics, Current Electricity, 2D geometry, 3D and Fluid simulator. It also allows scripting. https://simphy.com/feature/

• SB
  Simulation-based high school physics course notes2020 · landgreen.github.io · ▲295
• AS
  A simple 2D fluid and gravity simulation with WASM and WebGL2024 · aestuans.github.io · ▲137

  The little particles will gravitate to your cursor (or touch location), and can even enter stable orbits if the conditions are right! Mainly an excuse for me to experiment with wasm and WebGL, but it makes for a surprisingly good fidget toy.

• S2
  Simple 2D car physics with JavaScript2020 · pakastin.github.io · ▲308
• A2
  A 2D Physics Simulator in JavaScript2017 · htmlpreview.github.io · ▲126
• AI
  An interactive physics simulator with 1000’s of balls, in your terminalJan 2026 · github.com · ▲75
• IP
  Interactive physics simulations I built while teaching my daughterJan 2026 · projectlumen.app · ▲87

  I started teaching my daughter physics by showing her how things actually work - plucking guitar strings to explain vibration, mixing paints to understand light, dropping objects to see gravity in action. She learned so much faster through hands-on exploration than through books or videos. That's when I realized: what if I could recreate these physical experiments as interactive simulations? Lumen is the result - an interactive physics playground covering sound, light, motion, life, and mechanics. Each module lets you manipulate variables in real-time and see/hear the results…

• 
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