Kevin Boone

May 2025

They don't make 'em like that any more: 3D movies

3D movie technology is fading away. Perhaps we should be asking why movie studios embraced it so fervently, when it had already tanked in the 1950s?

Categories: TDMTLTAM

AppImage from scratch

This article describes how AppImage packaging works on Linux. It's based on a simple demonstration that uses nothing but commonplace command-line tools, to create a self-contained, distributable application (albeit a trivial one).

Categories: Linux

They don't make them like that any more: the BMW C1

BMW's C1 was an odd combination of car and motorcycle. It seemed to offer the advantages of both, and yet it wasn't a commercial success. Why?

Categories: TDMTLTAM

They don't make them like that any more: the Raleigh Chopper

The bicycle that did for our legs what the Sony Walkman did for our ears.

Categories: TDMTLTAM

Why do we use 'complex impedance' in electrical engineering?

AC circuit analysis relies heavily on complex numbers, and the concept of 'complex impedance'. But why? What actually is a complex impedance?

Categories: mathematics, electronics

No, eBay: it isn't free to sell

Despite eBay's claim, it isn't now free to sell for private sellers. Here's why.

Categories: general computing