— 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
This is a generic single-sphere buoyancy demo with no crowns, no slider, no density/mass/displaced-water live values, and no Archimedes crown-comparison scenario — it misses virtually every required feature from the prompt.
This is a generic single-sphere buoyancy demo with no crowns, no slider, no density/mass/displaced-water live values, and no Archimedes crown-comparison scenario — it misses virtually every required feature from the prompt.