HTML Sonnet #20
7.1
Evaluation
7.1 avg
8 physics accuracy
7.5 design quality
6.5 animation quality
7.5 slider ux
6 completeness
7 overall
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

Live mass, volume, and density values are hardcoded static HTML (not updated dynamically), so those three "live value" features fail; displaced water and buoyancy do update, and the iterative water-rise physics and splash particles are a solid implementation highlight.

8,449 output tokens · claude-sonnet-4-6 · end_turn

Live mass, volume, and density values are hardcoded static HTML (not updated dynamically), so those three "live value" features fail; displaced water and buoyancy do update, and the iterative water-rise physics and splash particles are a solid implementation highlight.