'Separation of variables' is one of the first methods usually taught to math and engineering students for solving differential equations, and yet the method as taught is mathematically very sloppy. That's not to say it doesn't work, but rather that it isn't made clear why it works, and whether similar methods will...

Is it safe to sell a used hard drive without securely erasing all the data? And is it even possible to erase all the data, even if we want to?

How Java's "container awareness" feature works with simple (Docker/Podman) containers, and OpenShift pods.

This article provides a very simple example of setting up the Apache Artemis message broker to authenticate against a Keycloak server.

What happens when we have to make real-world construction match unrealistic mathematical models, that we happen to know how to simulate?

The Vectrex used an entirely novel display technology that was superior to the TV-based displays of the time. Why didnt it catch on?

Camel's IRC support makes it relatively easy to implement an IRC conversation agent, that can process IRC messages and produce responses.

Artix is a low-resource Linux that can be configured to run well on old, low-powered computer hardware. In this article, I describe my first attempts at setting it up.

There are relatively few good reasons for writing C code without using a standard C library. However, doing so provides valuable insights into how compilers and operating systems work, and is worth doing if only for its educational value.

Many of the standard Java APIs make extensive use of anonymous inner classes, to provide features that in other language would be provided using lambda functions or closures. However, anonymous inner classes have limitations that many developers find difficult to understand and to work with. This article explains...

Using Linux date calculations to displaying a running countdown time in the terminal.

Encryption of home directories is out of favour in modern Linux distributions, but it offers some compelling advantages over the alternatives, if used with care.