Over the past few years, there have been several technical issues that have come up repeatedly in questions and comments here on Light & Matter, and even though graphical explanations would have been most helpful, they didn’t seem important enough to warrant their own videos. In other cases, I’ve run across something on the internet that bugged me, but again, didn’t want to devote a whole video to it. After finally giving the matter some thought, I decided that I’d […]