✓ 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 (dragging down = water, which is correct directionally, but the label layout says "Luft ▲ / Wasser ▼" at the bottom and the handle starts at the top meaning top=air is actually correct — however, the slider value=0 maps to crowns in AIR and value=1 to WATER, so direction IS correct; the bigger flaw is that mass/volume/density values in the data panels are static hardcoded text rather than dynamically computed, only displaced water updates live.
11,329 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (dragging down = water, which is correct directionally, but the label layout says "Luft ▲ / Wasser ▼" at the bottom and the handle starts at the top meaning top=air is actually correct — however, the slider value=0 maps to crowns in AIR and value=1 to WATER, so direction IS correct; the bigger flaw is that mass/volume/density values in the data panels are static hardcoded text rather than dynamically computed, only displaced water updates live.