✓ 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
Fully-featured ASCII-art demo hitting every checklist item; water-level rise in character rows is coarsely quantized (rounding kills subtlety), and the heureka overlay cycles frames rather than animating smoothly, but physics constants and live readouts are accurate.
Fully-featured ASCII-art demo hitting every checklist item; water-level rise in character rows is coarsely quantized (rounding kills subtlety), and the heureka overlay cycles frames rather than animating smoothly, but physics constants and live readouts are accurate.