✓ 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 (value=0 at top means crowns in air, but HTML label reads "Kronen senken" at top and "Oben" at bottom, which is contradictory); mass/volume/density panels show static values rather than live-updating ones; no smooth fall animation (crowns teleport linearly); splash particles are static noise not real animated effects.
Slider direction is inverted (value=0 at top means crowns in air, but HTML label reads "Kronen senken" at top and "Oben" at bottom, which is contradictory); mass/volume/density panels show static values rather than live-updating ones; no smooth fall animation (crowns teleport linearly); splash particles are static noise not real animated effects.