Main Question or Discussion Point
I love to ponder over interesting questions in physics that are known or not known. What i would like is a list of some undiscovered things in physics that have not been fully understood or described. I am not really looking to find a list of Quantum physics and stuff that physicists are working on right now as I would easily get confused and it is easy enough to find those questions on my own. For instance I remember my teacher said that there was something in double slit interference that was not fully understood?