✓ 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
Buoyancy force unit computation is doubly scaled (multiplied by 1e-6 then again by 1000 giving µN instead of meaningful mN, and water-rise is just echoed as displaced volume rather than a height); no true fall animation — crowns teleport with slider position rather than animating independently.
Buoyancy force unit computation is doubly scaled (multiplied by 1e-6 then again by 1000 giving µN instead of meaningful mN, and water-rise is just echoed as displaced volume rather than a height); no true fall animation — crowns teleport with slider position rather than animating independently.