As I said I will take your word for it. I trust you have no reason to lie about it. As I said I am completely baffled as to the why of it as it is an excelled natural practical example of auto rotation. It seems to me that such a develop drive by nature would in itself be worthy of study
I was confident it wasn’t related and to be sure I looked it up prior to commenting. Btw, I agree and I’m confident any plant matter that rotates or slows itself as it falls probably has been studied at length.