✓ 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, near-complete implementation with correct physics (1000 g same mass, 19.3 vs 13.0 g/cm³, larger volume displaces more water), live data panel, HEUREKA trigger, and splash particles, but lacks a true fall animation — the crown simply slides linearly with the slider rather than animating a drop when released.
Solid, near-complete implementation with correct physics (1000 g same mass, 19.3 vs 13.0 g/cm³, larger volume displaces more water), live data panel, HEUREKA trigger, and splash particles, but lacks a true fall animation — the crown simply slides linearly with the slider rather than animating a drop when released.