✓ 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
Solid SVG-only implementation with correct Archimedes physics (gold 19.3 g/cm³, gilded 13.0 g/cm³, same 1000 g mass), live data panels, wave/splash effects, and heureka trigger — but lacks true fall animation (crowns teleport via transform rather than animating a drop) and the custom SVG slider lacks a native range input, making it somewhat fragile UX.
9,982 output tokens · claude-opus-4-6 · end_turn
Solid SVG-only implementation with correct Archimedes physics (gold 19.3 g/cm³, gilded 13.0 g/cm³, same 1000 g mass), live data panels, wave/splash effects, and heureka trigger — but lacks true fall animation (crowns teleport via transform rather than animating a drop) and the custom SVG slider lacks a native range input, making it somewhat fragile UX.