Pearl,
PM me with your email address. Also, if anyone else wants the article I'd be happy to send it. It is in Proficient Pilot volume one circa 1997. However, I have a dog-eared copy in my CFI notebook from Flying magazine dated 1979! I was not flying then (in fact I was nine) but when I first got my CFI I stumbled across a collection of magazines at the FBO no one wanted. I poached all the stuff I thought was good.
It's a good article and still very relevant. It discusses Bernoulli and Newton.