The perfect encapsulation of physics education! On the left, we have the elegant, simplified section symbol representing ideal scenarios in textbooks. On the right? The chaotic scribble that is real-world application with friction, air resistance, and all those pesky "negligible factors" suddenly becoming very un-negligible.
Students quickly realize that "find the differences" between theoretical physics and practical application is the ultimate corporate joke. Twenty years teaching thermodynamics and I still can't get my coffee to maintain its temperature as predicted by the equations. Welcome to science, where "ideal conditions" is code for "exists only in your imagination."