Originally Posted by
atnyc
Given you are supposed to be a teacher of some sort, I have to say you’re a very ineffective one. You make numerous posts on this site, yet very little actual content was contained in those posts. Little information or knowledge shared, few points made with sufficient supporting evidence.
When the student is ready, the teacher will appear.
You made a couple declarative statements that appear to be in error. For example, you said you can't make a larger diameter tube of the same strength without more material, but in fact you CAN make a tube stiffer by using the same mass of material to make a tube of larger diameter. This is why Vitus aluminum bikes are noodly and Klein and Cannondale aluminum bikes are stiff - larger tubes with thinner walls - same mass, larger diameter, stiffer tube. It's also why most modern steel bikes have larger diameter tubing but are lighter than older steel frames.