10. Upstream Flow

Sprinkle light particles on a water surface. Then allow a water stream to be incident on the surface from a small height. Under certain conditions, the particles may begin to move up the stream. Investigate and explain this phenomenon.

将轻质颗粒撒到水面上。然后令一水流从较小的高度入射到水面上。在一定的条件下，颗粒可能沿水流向上逆流。请研究并解释这个现象。

马拉高尼效应 (en)