January 2026

I generally avoid religious topics per se on this blog, not out of policy, but for lack of interest.  But there are many topics usually addressed in conversations concerning…Read more

We’re trained to think that causes precede effects, energy flows like water.  With the variational principles in physics, it doesn’t work that way.  The solutions don’t violate causality —…Read more

Analogies are easily stretched beyond viability, but they are the stuff of intuition. Consider a barrel filled with water and a rock on a string dangling over it.  If…Read more

Our familiarity with the concept of dimensions is based on a commonsense notion of specifying the locations of objects in what we otherwise consider to be an empty ‘space’.…Read more

A friend indicated that he and his wife had conceived of their new relationship as the two faces of Janus.  It brought several things to mind:  First was that…Read more