Casio fx-580

One of the first things I purchased when starting university was a Casio fx-580 calculator. At the time this was an amazing machine because it did complex numbers - something engineers spend a lot of time pondering. I still have it on my desk and use it every day. Over the years, though, the screen had started to fade. That is, at least, until five minutes ago when it was cleaned for the first time in twenty years. And underneath? A shiny - non-faded - screen. Here’s to another twenty years of muck. They don’t make ‘em like they used to.