✓ 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
Comprehensive ASCII-art implementation with correct physics (ρ_gold=19.3, ρ_fake=7.8, same 1000g mass), live info panel, multi-frame Heureka overlay, and splash effects, but the slider is inverted (value=0 is "crowns in air" yet the label "EINTAUCHEN ↑" with 100% at top means dragging up submerges, not down), and the ASCII animation quality is inherently limited with no smooth fall physics—crowns jump discretely rather than animating fluidly.
Comprehensive ASCII-art implementation with correct physics (ρ_gold=19.3, ρ_fake=7.8, same 1000g mass), live info panel, multi-frame Heureka overlay, and splash effects, but the slider is inverted (value=0 is "crowns in air" yet the label "EINTAUCHEN ↑" with 100% at top means dragging up submerges, not down), and the ASCII animation quality is inherently limited with no smooth fall physics—crowns jump discretely rather than animating fluidly.