A couple of days ago, I was chatting with a friend of mine and during that conversation she expressed puzzlement as to why fractional frame rates like 29.97 existed. I gave her the two-dollar explanation but then thought others might find it interesting to know how these bizarre frame rates historically came about. So, gentle reader, as a small diversion from usual discussions here (and because I’m a little bored), I thought you might find the reasons for this odd situation interesting. Please n...