Isn't it gratifying when you understand how some piece of engineering works? Like you, I sometimes finding myself asking "how", then think, then sketch, then think some more. At some point there is usually an "ah-ha!" followed by a smugness as if I just figured out all of the mysteries of life.
Anyway, kudos for figuring it out, but perhaps even bigger kudos for asking "how"...that's becoming a lost art. It seems that more and more people care less and less about how or why something works, and when it breaks, they act like a child with a broken toy expecting someone to come and magically fix it. I find it all pretty sad, I just hope this isn't an evolutionary shift.
