Expanding Proton and Constructal Law

Professor Bejan designed a microcircuit cooling system without moving parts. He arranged the system in such a way that heat will go from hot to cold in a tree-like path.

My Ph.D. thesis was on the Expanding Proton. The calculations are elaborate, but now reading Bejan's book, "Design in Nature," I understand it differently.

The flow of energy goes from the line where the high energy proton moves, towards the edges perpendicular to it. This produces a kind of halo, which we call a Expanding Proton.

After almost forty years, I finally understand.

Thank you Adrian Bejan!