Interesting that the paper cited in [#20](https://forum.azimuthproject.org/discussion/comment/18570/#Comment_18570) has been retracted by Oxford Academic publishers

This retraction was discovered via my Zoteria citation database, ["Control of plant leaf movements by the lunisolar tidal force"](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6007428/)

![](https://pbs.twimg.com/media/EPoqi2aWoAAMRZz.png)

Even though it's apparently self-plagiarization, I never would have been aware of this research if I hadn't run across this paper.