2] Mechanical calculations/strength calculations/etc.

Here is a summary of the basic calculations I have taken note of in the course of my mechanical design work. I am a human resource who entered this industry with a liberal arts degree, and I have learned from time to time from a situation where I could not do even the most rudimentary calculations properly.To be clear, the basic calculations in this article and my own academic level may be at (or below) the elementary school level!But please keep us warm.