Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For First Responders · 3D N-Body

3D N-Body for a tightrope walk

Built for first responders planning or training for real incidents. Run fast what-if scenarios for response planning and training — no software to install in the field. Simulate a tightrope walk live below — adjust the inputs and watch it respond, right in your browser.

3D N-Body StudioLive

3D gravitation · orbit camera

Controls

Drag to orbit · scroll to zoom.

Bodies

Gravity G

Data Inspector

Bodies81

IntegratorSymplectic Euler

Dimensions3D

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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Frequently asked questions

Is this good for first responders?: Yes — this version of "3D N-Body for a tightrope walk" is framed for first responders planning or training for real incidents. Run fast what-if scenarios for response planning and training — no software to install in the field.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.