— Two crowns — Same mass, different density — Vertical slider — Slider works — Slider controls crowns — Slider direction correct — Full slider range — Fall animation ✓ Water displacement — Rising water level — Splash effects — Physics correct — Live mass value — Live volume value — Live density value — Live displaced water — Gilded displaces more — Heureka animation ✓ No external deps ✓ Light bg / dark text ✓ Self-contained HTML
Entirely misses the prompt: no crowns, no vertical slider, no live values, no Heureka animation — it's a generic ASCII-art Archimedes explainer with unrelated button-triggered text mutations.
Entirely misses the prompt: no crowns, no vertical slider, no live values, no Heureka animation — it's a generic ASCII-art Archimedes explainer with unrelated button-triggered text mutations.