I have enjoyed observing this the shapes and effects created when filming fast moving objects on a smart phone. Dustin at Smarter Every Day shows many examples of jsut how and why the rollign shutter effect occurs. What a champion.
Example of the Wagon Wheeling or aliasing effect Dustin mentioned at the end of the video. This may be confused with what he was speaking about. Even when we get new information we can sometimes think it is an answer to a previous question instead of jsut new information leading to more questions 🙂