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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。
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感谢黄腾同学！ — 乐永康 2022/09/26 10:48