— 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 subject matter — shows generic Archimedes buoyancy with wooden/stone blocks, has no crowns, no slider, no Heureka moment, and "displaced water" values are randomized rather than physics-derived.
Completely wrong subject matter — shows generic Archimedes buoyancy with wooden/stone blocks, has no crowns, no slider, no Heureka moment, and "displaced water" values are randomized rather than physics-derived.