— 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
Completely wrong demo — implements a generic Archimedes buoyancy simulator with one adjustable cube and fluid presets, not the Archimedes crown experiment; none of the required features (two crowns, vertical immersion slider, gilded vs. pure-gold comparison, fall/splash animations, Heureka moment) are present.
9,481 output tokens · claude-opus-4-6 · end_turn
Completely wrong demo — implements a generic Archimedes buoyancy simulator with one adjustable cube and fluid presets, not the Archimedes crown experiment; none of the required features (two crowns, vertical immersion slider, gilded vs. pure-gold comparison, fall/splash animations, Heureka moment) are present.