✓ 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 is horizontal (not vertical as required), but all core physics, live values, ASCII art dual-crown rendering, splash effects, rising water, and Heureka animation are genuinely implemented; gilded crown density (9.6 g/cm³) and gold (19.3 g/cm³) with equal mass of 100 g are physically sound.
Slider is horizontal (not vertical as required), but all core physics, live values, ASCII art dual-crown rendering, splash effects, rising water, and Heureka animation are genuinely implemented; gilded crown density (9.6 g/cm³) and gold (19.3 g/cm³) with equal mass of 100 g are physically sound.