✓ 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
Physics values are correct (gold 19.3 g/cm³, gilded 13.0 g/cm³, same 1000g mass) and water-rise differential is properly modeled, but mass/volume/density live values are static (hardcoded, not in reactive live-update spans) and there is no true fall animation — crowns jump positionally with slider rather than animating autonomously.
7,705 output tokens · claude-opus-4-6 · end_turn
Physics values are correct (gold 19.3 g/cm³, gilded 13.0 g/cm³, same 1000g mass) and water-rise differential is properly modeled, but mass/volume/density live values are static (hardcoded, not in reactive live-update spans) and there is no true fall animation — crowns jump positionally with slider rather than animating autonomously.