✓ 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
Physics values are plausible (same 1000g mass, gold 19.3 vs gilded 13.0 g/cm³, correct displacement scaling), but the ASCII-art rendering is crude — crowns don't animate falling, they simply appear/disappear at a threshold, and particle splash coordinates are never actually composited into the displayed text.
Physics values are plausible (same 1000g mass, gold 19.3 vs gilded 13.0 g/cm³, correct displacement scaling), but the ASCII-art rendering is crude — crowns don't animate falling, they simply appear/disappear at a threshold, and particle splash coordinates are never actually composited into the displayed text.