Now that I've gotten most of the boring formalities out of the way, it's time to begin using the blog for what - I imagine - blogs are for: Thinking out loud.
This post is going to be about a "measurement" that I call delta world or delta-W, tagged as deltaw with no hyphen (because I don't know - and won't trust - how this blog interface thingie copes with hyphens; more than 25 years of experience using various computers has made me justifiably paranoid about such things).