✓ 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
Slider direction is inverted (value=0 = crowns in air, but crowns snap to water surface rather than animating a fall), and crown positioning logic is broken — both crowns are forced to track the water surface simultaneously rather than descending independently, with no actual fall animation.
Slider direction is inverted (value=0 = crowns in air, but crowns snap to water surface rather than animating a fall), and crown positioning logic is broken — both crowns are forced to track the water surface simultaneously rather than descending independently, with no actual fall animation.