Physics

In this blog I will derive the Einstein field equations starting from the Hilbert action.  Since there are only two terms in the Hilbert action, one of which is left alone, there is not that…

I like to explain stuff so that people like you and me think “aha!”, and not, “this guy knows a lot; I better agree though I have no clue what he is talking about”. In this manner, let me again…

Well, not really a "true" queen sacrifice, but it is still a nice little combination the one I played against a strong 1st category player today at the "Baracchi Memorial" in Venice, a one-day rapid…

QUATERNIONS AND GROUP THEORY

What I didn't account for in my last blog post was that there is a first order energy shift due to classical physics.. to IS NOT relativitstic in nature.  This can be understood using E=hf and…

Riding into a black hole is a fun mental exercise.  General relativity predicts* that an observer who falls freely into a large black hole will have no means with which she can establish whether…

This blog required programming.  The basic idea is to have four degrees of freedom for the four parameters living inside a four dimensional quaternion.  Four for loops did the trick. The…

In this sorry age for Supersymmetry (SUSY) phenomenologists, it is quite easy to step on an aching toe while discussing the results of the Large Hadron Collider experiments, whose results have let…

In the previous blog post we discussed entropy. I provided you with a less well-known perspective on entropy and demonstrated that this generic perspective is fully compatible with the more…

A few hundred thousand billion free-floating, Earth-sized planets may exist in the space between stars in the Milky Way, argues an international team of scientists in Astrophysics and Space Science.…