✓ 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 is horizontal (not vertical), both crowns submerge to identical depths and displace identical volumes (no visible difference between pure gold and gilded), and ASCII rendering places crown chars outside the container walls due to flawed coordinate logic.
Slider is horizontal (not vertical), both crowns submerge to identical depths and displace identical volumes (no visible difference between pure gold and gilded), and ASCII rendering places crown chars outside the container walls due to flawed coordinate logic.