— 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 wrong subject matter — implements a generic ASCII Archimedes demo (sink/float/neutral) with no crowns, no slider, no live physical values, and none of the gold-vs-gilded crown comparison required by the prompt.
Entirely wrong subject matter — implements a generic ASCII Archimedes demo (sink/float/neutral) with no crowns, no slider, no live physical values, and none of the gold-vs-gilded crown comparison required by the prompt.