✓ 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
Exceptionally complete implementation with correct physics (gold 19.32 g/cm³, gilded 11.0 g/cm³, same 1000g mass), animated ripples, particle splash, rising water levels, live data panel, and an elaborate sparkle-and-Archimedes-figure Heureka overlay — only minor issue is the custom SVG drag-slider lacks a native HTML range input, making precise positioning slightly awkward.
13,743 output tokens · claude-opus-4-6 · end_turn
Exceptionally complete implementation with correct physics (gold 19.32 g/cm³, gilded 11.0 g/cm³, same 1000g mass), animated ripples, particle splash, rising water levels, live data panel, and an elaborate sparkle-and-Archimedes-figure Heureka overlay — only minor issue is the custom SVG drag-slider lacks a native HTML range input, making precise positioning slightly awkward.