✓ 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
Strong physics model with iterative submersion solver and correct same-mass/different-density setup, but lacks true fall animation (crowns teleport rather than animate) and splash effects only trigger on a threshold cross rather than animating smoothly during slider movement.
Strong physics model with iterative submersion solver and correct same-mass/different-density setup, but lacks true fall animation (crowns teleport rather than animate) and splash effects only trigger on a threshold cross rather than animating smoothly during slider movement.