✓ 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
Solid physics values (gold 19.3, gilded 10.0 g/cm³, same 1000g mass) and live stats panel, but the slider direction is inverted (0=air, 100=water maps bottom-to-top visually in bt-lr writing-mode), crowns are crude 3×3 ASCII blobs with no distinct visual difference when submerged, and there are no real splash effects — just static `~` fill throughout.
Solid physics values (gold 19.3, gilded 10.0 g/cm³, same 1000g mass) and live stats panel, but the slider direction is inverted (0=air, 100=water maps bottom-to-top visually in bt-lr writing-mode), crowns are crude 3×3 ASCII blobs with no distinct visual difference when submerged, and there are no real splash effects — just static `~` fill throughout.