Euler angles - Insights 

An elementary introduction to Euler angles is presented. Although defined in a simple way, Euler angles are difficult to imagine when someone first learns them. The video is divided into two parts, in the first part, I explain why do we require Euler angles, and in the next part is spent to illustrate the use of Euler angles to describe the angular velocity of a rotating body. Most of the textbook on mechanics do not bother to explain the deep reasons of why would anyone require Euler angles. In this video, I showed the idea of Euler angles follows when we talk about rotation in three-dimensional space.