Images and Media
Why a photo that looks identical can be a tenth of the size, and how a square of black and white squares survives being printed, folded and photographed badly. Posts about the encoding decisions behind everyday visual formats.
7 min read
Image Compression Explained: Lossy, Lossless, and WebP
Why a photo shrinks to a tenth of its size with no visible change, why a logo does not, and how to pick a format without guessing.
4 min read
What QR Codes Are and How to Create One
QR codes turn a URL or text into a scannable square. Here is how they work and how to generate one for free in your browser.