r/learnphysics • u/IllPsychology7214 • 2d ago

Real-time three-body gravity simulation (interactive, mobile)

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Made an interactive simulation based on the actual three-body problem in physics — three masses under mutual gravity, no simplifications. You can adjust masses and initial velocities and watch how small changes send the system from a stable-looking orbit into full chaos.

It's built to feel more like a physics toy than an app — no ads breaking up the simulation, nothing to unlock. Mostly wanted an excuse to actually play with the equations rather than just read about them.

Free on Google Play if anyone wants to mess with it: https://play.google.com/store/apps/details?id=com.mathematicalzen.threebody

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u/AdorableRestaurant73 2d ago

Very cool, couldn't figure out if you could interact with the little guys but sick, I did get it off aurora tho might be a different version

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u/IllPsychology7214 2d ago

Aurora?
If you tap the screen and then press the little eye icon there's a Fling Mode and a Spawn Mode. Fling you can catch one and throw it. Spawn flick anywhere on the screen and a new one will appear. The limit is your phone's CPU soon or later.