Studied EE and Comp Sci a LONG time ago, now interested in cosmology and QM to keep the old gray matter in motion.
Woodworking is my main hobby.
As a long-time woodworker, I have an interest in being able to tell one wood from another, and in the process of learning how to do that, I’ve developed some knowledge about wood anatomy that I think will be of interest to Biology students as well as woodworkers. There is an enormous variety of wood…
We get a lot of “what if” questions here on Physics Forums. This article will explore three different types and then some suggestions for students who feel their questions may fall into one of those types. “what if” questions that contradict physics as we know it “what if” questions that are themselves self-contradictory “what if”…
In this Insights Guide, the focus is entirely on types of languages, how they relate to what computers do, and how they are used by people. It is a general discussion and intended to be reasonably brief, so there is very little focus on specific languages. Please keep in mind that for just about any…
The Balloon Analogy is a simple-minded way to help describe (but not completely describe) two facts of cosmology that are difficult for many people to see, namely that the universe is expanding uniformly and that there is no center (and no edge). The analogy is disliked (often intensely disliked) by serious physicists because it causes…