— 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
Entirely wrong concept — implements a generic single-cube buoyancy demo with button controls instead of the required two-crown (pure gold vs. gilded), same-mass/different-density, vertical-slider Archimedes experiment; no crowns, no slider, no mass/volume/density/displaced-water readouts, no rising water level, no splash, no Heureka animation.
Entirely wrong concept — implements a generic single-cube buoyancy demo with button controls instead of the required two-crown (pure gold vs. gilded), same-mass/different-density, vertical-slider Archimedes experiment; no crowns, no slider, no mass/volume/density/displaced-water readouts, no rising water level, no splash, no Heureka animation.