✓ 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 puts crowns in air but at bottom of slider track, top means submerged), Heureka never fires (compares number to string '100'), and mass/volume/density values are static rather than live-updating displays.
Slider direction is inverted (value=0 puts crowns in air but at bottom of slider track, top means submerged), Heureka never fires (compares number to string '100'), and mass/volume/density values are static rather than live-updating displays.