Recent content by billy k

Hello there, I am trying to analyze an impeller i found at home (small one) so i can find the torque-speed graph. The thing is that i get stuck in an equation with 3 unknowns instead of 2 and i don't know what else to assume. My approach is as follows: I take the usual equation: ## M = \dot{m} (...

Hi i saw some technics with sticky tape and pencils(i know its not pure graphite) but how can i take it a step further to produce more ?