✓ 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 (min=0/top=air is correct conceptually, but the CSS `transform: rotate(-90deg)` on a standard horizontal range flips the visual so dragging up increases value, making bottom=air and top=water in practice); physics values are accurate (gold 19.3 g/cm³, gilded 13.0 g/cm³, same 1000 g mass), and the ASCII rendering with proportionally greater right-crown displacement is a solid implementation of the Archimedes principle.
6,016 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0/top=air is correct conceptually, but the CSS `transform: rotate(-90deg)` on a standard horizontal range flips the visual so dragging up increases value, making bottom=air and top=water in practice); physics values are accurate (gold 19.3 g/cm³, gilded 13.0 g/cm³, same 1000 g mass), and the ASCII rendering with proportionally greater right-crown displacement is a solid implementation of the Archimedes principle.