Hello all LPSGers. I need an intelligent physicist's help right now. I am training in the circus arts and am attempting to build (instead of paying 1000+$ to buy) a handbalancing stand. it looks like that, but i'm only using two poles for now (i'm learning). The poles are gonna be .5" in diameter (might have to be .7" i think, though) They will be 30" tall, and 13" inches apart. What is the minimum strength of the steel to make sure the metal won't flex or bend? Please try to make your explanation as understandable as possible. I did well in physics class, but don't go nerdy on me please. Thank you so much whoever helps me.