✓ 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
Both crowns descend at identical rates and displace identical water amounts — the core physics demonstration (gilded displaces more) is never actually shown; slider direction is also inverted (0=air is at bottom, 100=water is at top for a bt-lr vertical slider).
Both crowns descend at identical rates and displace identical water amounts — the core physics demonstration (gilded displaces more) is never actually shown; slider direction is also inverted (0=air is at bottom, 100=water is at top for a bt-lr vertical slider).