✓ 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
Feature-complete ASCII-art implementation with correct Archimedes physics (ρ_gold=19.3, ρ_fake=8.5, same 100g mass), multi-frame Heureka overlay, and live readouts, but the crown visual resolution is coarse and the water rise animation is quantized to integer character rows, limiting realism.
Feature-complete ASCII-art implementation with correct Archimedes physics (ρ_gold=19.3, ρ_fake=8.5, same 100g mass), multi-frame Heureka overlay, and live readouts, but the crown visual resolution is coarse and the water rise animation is quantized to integer character rows, limiting realism.