Bionerd23 - Radioactivity is in the air for you and me

An anonymous woman who goes by the handle of "bionerd23" will give you a very comprehensive, bottom-up view of man-made and natural nuclear radiation and how you can detect it. Mind you - when we say "comprehensive", this means things like building yourself ion chambers for detecting radiation, and studying and operating a small-scale homemade fusion reactor. Have a look at her excellent videos.