Making "The Chart of Electromagnetic Radiations"

Even a small portion of the comprehensive Chart of Electromagnetic Radiations is crammed full of science. About a month ago, the Lawrence Livermore lab posted this gorgeous old poster of the electromagnetic spectrum onto it's Flickr page. It's an amazing artifact of scientific education from 1944, complete with  images of retro radio equipment, hospital radium rays and one of the first commercially available television set. Putting together a chart like this can be as much of an undertaking as ...