About this site

I’m an engineer, somewhere in the middle-to-late part of my career. Earlier in my life I got a taste for digital signal processing: the moment a formula turns into a sound you can hear, or a picture of a spectrum suddenly explains something you’d only half understood. Then, as careers do, mine went in a different direction, and corporate life slowly crowded out the joy of it.

Recently that changed. With AI to amplify what I can do in my spare time, I’ve been able to build the kind of learning material I always wished I’d had: explanations tailored to the questions I actually have, with figures I can poke at until the idea clicks. These pages are the result, and they’re how I’m rediscovering some of this amazing world.

How the pages work

Each page starts from the simplest idea that could work, shows where it falls short, and builds from there to the way things are really done. Every term is defined when it first appears, and every figure is live: move the sliders, switch things on and off, and many of them will play what they show, or listen through your microphone. Nothing you record leaves your browser.

The pages are written and coded with Claude, Anthropic’s AI model, from my questions and outlines, and I review each one. The numbers in the captions are measured from the figures themselves, and the code behind them is tested, but mistakes are still possible. If you find one, I’d like to hear about it.

Who it’s for

I’m building these pages for myself, but I hope others find some use, and some joy, in them too. If they help you, that makes me very happy.