Giant Underground Detector
In Mono, the girls visit a huge underground circular facility lined with countless photomultiplier tubes emitting a faint blue glow, with water surfaces reflecting like mirrors. Standing on an observation bridge, they are amazed by the scale of this scientific apparatus and start taking photos.
Scene context
第3集，approx. 2分29秒处
Visit notes
- 现实中的超级神冈探测器（Super-Kamiokande）位于日本岐阜县飞驒市神冈町地下1000米处，用于探测中微子。
- 该设施内部可容纳一个15层高的建筑，装满5万吨纯水。
- 动画第3集中使用的场景参考了实际设施的内部照片和布局。