The most difficult topic during my engineering preparation was Waves. Reason being, I could not really comprehend what a wave was. I was completely out of depth trying to visualize in my mind electromagnetic waves. For the exam, I just mugged up all the formula and practiced a lot of formula driven problems.
Now, that I think about waves, I realize that the subject could have been made much more understandable and interesting, had someone actually made us visualize what a wave really was. Today’s needull helps understand waves. And I am sharing it with you because this article is an example of how exciting science is, if you understand it better.