✓ 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 is crowns-in-air mapped to slider bottom, value=1000 is crowns-in-water at top — but CSS `transform: rotate(-90deg)` flips the visual so high value appears at top meaning water, which is backwards); mass/volume/density live values are static HTML, not dynamically updated per slider position.
6,952 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (value=0 is crowns-in-air mapped to slider bottom, value=1000 is crowns-in-water at top — but CSS `transform: rotate(-90deg)` flips the visual so high value appears at top meaning water, which is backwards); mass/volume/density live values are static HTML, not dynamically updated per slider position.