if I put this item into chronological order, I see that I am really the only one who is bothering with your complete lack of effort to justify your theory.
fool me N times, shame on you; fool me N + 1 times, shame on me!
taht is to say, what you have stated is not "an engineering principle," nor even a "rule of thumb," although it could be said to be "trial & error."
so, this is your N - 1th chance to get a conversation a-going, but I will leave you with a brief critique at N, if you just say how wonderful you are, again.
>>> (unless #9stein's weather control ideas are translated into English). > Some engineering texts indicate the calculation of impact > loads, such as when dumping dirt into a truck. Those formulas are > wrong, but the principle is: Increase the sizes of the beams if you > expect there to be impact loads!