The whole room of riddle instructors was then slightly disturbed as me and another engineer explained why it was rubbish. Give one his due he did go and read up on it and came and asked sensible questions after the initial shock went through them all that they had spent 100's of thousands of dollars to be taught in correct theory.
Oh the instructors worst nightmare when the student actually knows more than him/herself.. and on top of it, is smug about it
I was always very humble when having students with deeper knowledge than myself and tried to use them as a resource in teaching for the benefit of myself and other students.
There are lots of myths out there still being taught as reality by thouse who should know better. The danger of downwind turn springs to mind..