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N-Body Gravity Simulator

Education

Drop bodies onto a canvas, drag to set their velocity, and watch gravity do the rest — including genuinely stable configurations like the famous figure-eight three-body orbit. A leapfrog integrator (not the naive method that makes orbits spiral out over time) keeps energy and angular momentum honest, with live conservation readouts proving it. Try the solar-system-lite preset or build a random cluster and watch it settle into orbits on its own.

Open N-Body Gravity Simulator (nbody.apps.vtc.com)

About N-Body Gravity Simulator

N-Body Gravity Simulator is an interactive learning tool on VTC. Drop bodies onto a canvas, drag to set their velocity, and watch gravity do the rest — including genuinely stable configurations like the famous figure-eight three-body orbit. A leapfrog integrator (not the naive method that makes orbits spiral out over time) keeps energy and angular momentum honest, with live conservation readouts proving it. Try the solar-system-lite preset or build a random cluster and watch it settle into orbits on its own. It runs in your web browser and is free to use, and suits students, teachers and self-learners.

Who it's for: Students, teachers and self-learners

Features

Frequently asked questions

What is N-Body Gravity Simulator on VTC?

N-Body Gravity Simulator is an interactive learning tool on VTC. Drop bodies onto a canvas, drag to set their velocity, and watch gravity do the rest — including genuinely stable configurations like the famous figure-eight three-body orbit. A leapfrog integrator (not the naive method that makes orbits spiral out over time) keeps energy and angular momentum honest, with live conservation readouts proving it.

Is N-Body Gravity Simulator free to use?

Yes. The VTC app catalog lists N-Body Gravity Simulator at no cost, and it runs in your web browser with nothing to install.

Who is N-Body Gravity Simulator for and how do I start?

It is aimed at students, teachers and self-learners. To start, open https://nbody.apps.vtc.com in your browser.