Image credits: From left to right – Man in a Faraday cage protected from a high voltage electric current. Please don’t try this at home. by Tesla Downunder CC BY-SA 2.5; Evolution of light sources from sunlight to LEDs. Adapted from Wunsch 2018, Used with the permission of Alexander Wunsch; 1954 Castle Bravo mushroom cloud from US atmospheric testing, ©Public Domain United States Department of Energy.