i saw this video on youtube.... and then i got the idea.... and i saw someone comment about it with +135 thumbs up, it's clear, Great Minds think alike. Nerd ALERT Non-circular gear Flowmeters on Bongs. I wanna see this happen. to Makers of Glassware and pipes, importers. ummmm yeah you get it. YouTube - Non-circular gears (super oval flowmeter) Music's awesome too yo.... mmm
Ive heard of people talking about seeing how pieces could be scientifically be studied against another, that would cover the airlfow category! Nice Find!