— 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
Competent ASCII Archimedes demo with correct buoyancy physics and live readouts, but entirely misses the prompt: no crowns, no vertical immersion slider, no fall/splash animations, dark background violates light-bg requirement, and the Heureka moment is absent.
8,743 output tokens · claude-opus-4-6 · end_turn
Competent ASCII Archimedes demo with correct buoyancy physics and live readouts, but entirely misses the prompt: no crowns, no vertical immersion slider, no fall/splash animations, dark background violates light-bg requirement, and the Heureka moment is absent.