Agreed, I studied Materials Engineering - Fluid Dynamics was one of the hardest subjects in my opinion. I liked thermodynamics it made sense to me, solid mechanics was a bit of a slog to get through (endless amounts of beam deflection) but fluid dynamics arrghh.
I chose to take a particle physics course as an elective in my final year - I was planning to specialize in battery and capacitor technologies and wanted to learn more.
The lectures were very different to Engineering much, much more theory focused(almost nothing on applications) it was my introduction to things like Hamiltonians, Wave Functions and Fermi-Dirac statistics. I'm glad I took the course I learnt a heap especially about semi-conductors it gave me a better appreciation and understanding of things we covered in my engineering degree like magnetism and phonons/heat transfer as well. But I will say it did feel like another world compared to Engineering - there was much less in common than I would have thought.
