✓ 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
Mass, volume, and density are hardcoded static text (not live-updating elements), and the slider direction is inverted (min=0/top=air is correct, but a rotated horizontal range visually places high values at top, making bottom=water directionally ambiguous/incorrect depending on browser).
9,068 output tokens · claude-opus-4-6 · end_turn
Mass, volume, and density are hardcoded static text (not live-updating elements), and the slider direction is inverted (min=0/top=air is correct, but a rotated horizontal range visually places high values at top, making bottom=water directionally ambiguous/incorrect depending on browser).