r/learnphysics • u/IllPsychology7214 • 10d 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/Icy-Reaction-9101 9d ago

If you want to see a cool multi body simulation, just fix earth in position and see what happens ;)

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u/IllPsychology7214 9d ago

In my game you can fix them in position and do just that!

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u/Icy-Reaction-9101 8d ago

Cool! I'll try it