✓ 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 (HTML vertical range with no explicit inversion means high value = top = full immersion, contradicting the "▲ LUFT / ▼ WASSER" labeling intent); all other features are solidly implemented with correct physics (Au 19.3 g/cm³, Au+Ag 13.0 g/cm³, same 1000 g mass) and a well-executed ASCII art engine with splash, wave animation, live data panels, and a polished Heureka overlay.
7,956 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (HTML vertical range with no explicit inversion means high value = top = full immersion, contradicting the "▲ LUFT / ▼ WASSER" labeling intent); all other features are solidly implemented with correct physics (Au 19.3 g/cm³, Au+Ag 13.0 g/cm³, same 1000 g mass) and a well-executed ASCII art engine with splash, wave animation, live data panels, and a polished Heureka overlay.