✓ 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 Archimedes physics (gold 19.3 g/cm³, gilded 13.1 g/cm³, same 1000 g mass), live data panels, comparison bar charts, splash/ripple effects, and a full Heureka overlay with animated Archimedes figure; the custom SVG drag-slider lacks a native range input but functions well via mouse/touch events, and the slider grip lines don't visually track with the handle on drag.
14,544 output tokens · claude-opus-4-6 · end_turn
Exceptionally complete implementation with correct Archimedes physics (gold 19.3 g/cm³, gilded 13.1 g/cm³, same 1000 g mass), live data panels, comparison bar charts, splash/ripple effects, and a full Heureka overlay with animated Archimedes figure; the custom SVG drag-slider lacks a native range input but functions well via mouse/touch events, and the slider grip lines don't visually track with the handle on drag.