✓ 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: thumb starts at top (y=155, value=0 = crowns in air) which is correct conceptually, but the label "Luft" at top and "Wasser" at bottom means dragging DOWN puts crowns in water — this is actually correct direction — however the slider thumb starts at top meaning value=0=air which IS correct; mass/volume/density panels show static values (not live-updating with slider), only displaced water updates dynamically.
11,363 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted: thumb starts at top (y=155, value=0 = crowns in air) which is correct conceptually, but the label "Luft" at top and "Wasser" at bottom means dragging DOWN puts crowns in water — this is actually correct direction — however the slider thumb starts at top meaning value=0=air which IS correct; mass/volume/density panels show static values (not live-updating with slider), only displaced water updates dynamically.