RE: wingtip vorticies
Irumd,
I'm assuming that your reply was aimed at me as well. I certainly did not mean to insult you, and I'm very sorry if it seemed I did. I don't consider myself superior. I was taking issue with "simplified" explanations that are wrong, not with any people. Having said that, I don't think it is an insult, or condescending, to refer to someone as a layman. I am a layman on most topics, and hence I appreciate useful, accurate information on those topics, from people who are not laymen.
banktoturn