✓ 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 top/air which is correct structurally, but the vertical CSS uses writing-mode/direction that renders it top=air visually — marginal; however mass and density are static labels not live-updating spans, so live_value_mass and live_value_density are not truly live despite correct physics constants being used throughout.
Slider direction is inverted (value=0 is top/air which is correct structurally, but the vertical CSS uses writing-mode/direction that renders it top=air visually — marginal; however mass and density are static labels not live-updating spans, so live_value_mass and live_value_density are not truly live despite correct physics constants being used throughout.