— 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 off-brief: no crowns (uses a generic red cube), no vertical slider, no two-object comparison, no per-crown density/volume/mass/displaced-water live readouts, and physics values (weight, buoyancy) are arbitrary magic numbers unrelated to Archimedes' principle with real gold/gilded crown parameters.
Completely off-brief: no crowns (uses a generic red cube), no vertical slider, no two-object comparison, no per-crown density/volume/mass/displaced-water live readouts, and physics values (weight, buoyancy) are arbitrary magic numbers unrelated to Archimedes' principle with real gold/gilded crown parameters.