✓ 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
Live mass/volume/density panels show static hardcoded text rather than truly dynamic values, and there is no fall animation — the crown teleports rather than animates into water.
Live mass/volume/density panels show static hardcoded text rather than truly dynamic values, and there is no fall animation — the crown teleports rather than animates into water.