HTML Opus #48
7.3
Evaluation
7.3 avg
8.2 physics accuracy
8.5 design quality
7.8 animation quality
5.5 slider ux
6.5 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

Slider direction is inverted (top label "☁️ Luft" / bottom "💧 Wasser" but slider value=0 at top means air which is correct conceptually, however the rotated range input maps slider thumb at top to min=0 which after rotation puts thumb visually at top = low value = air — actually direction may be correct; regardless, mass/volume/density values are static text, not live-updating data-value elements, missing the live readout requirement for those three fields.

11,542 output tokens · claude-opus-4-6 · end_turn

Slider direction is inverted (top label "☁️ Luft" / bottom "💧 Wasser" but slider value=0 at top means air which is correct conceptually, however the rotated range input maps slider thumb at top to min=0 which after rotation puts thumb visually at top = low value = air — actually direction may be correct; regardless, mass/volume/density values are static text, not live-updating data-value elements, missing the live readout requirement for those three fields.