Physics sim traps a bouncing ball inside twelve rings
49 views·1 saves·Posted 24 Sept 2026 · 0:32 · Motion Graphics
Our note
A physics simulation where a bouncing ball tries to escape twelve concentric rings, each bounce triggering a note of Fur Elise on a synth built from scratch; all 1,904 frames rendered by the model itself.
The creator’s post
I gave Claude Opus 5.5 one prompt: "make a video that could go viral." It wrote a physics sim, built a synth that plays Für Elise one bounce at a time, and rendered all 1,904 frames itself. Which ring did you think would trap it? 🔊
The prompt
One-line 'go viral' briefmake a video that could go viral.
Make one like this
1 · Copy the prompt
Use the prompt above as your starting point, then change the subject and the style.
2 · Direct it like an editor
Ask for one self-contained HTML file on a fixed 1920×1080 stage, link this video as the reference, and send two or three rounds of specific notes.
3 · Render it to MP4
Screen-record a short piece, or capture it frame by frame for exact timing. How →
How it was made
The creator didn’t name their tools. Most videos like this are HTML, canvas or SVG animation written by Claude and screen-recorded or rendered to MP4. How that works →
Look
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