Mathematics
Geometric Intuition for Differential Forms and Stokes' Theorem
Quick fact
Stokes' theorem is a single formula that unifies the fundamental theorem of calculus, Green's theorem, and the divergence theorem, all of which are special cases of one general principle.
Why this is interesting
You know how the fundamental theorem of calculus says that integrating a derivative gives you the net change? Now imagine that idea stretched to curves, surfaces, and even higher-dimensional shapes—what would that look like?