The Secret History of the Static ZAP: From 30,000 Volts on Your Doorknob to the Edo Period’s “Hundred People Shock.”
I’m Ken Kuwako, your Science Trainer. Every day is an experiment. On a dry winter day, the moment you reach for a metal doorknob… ZAP! ⚡ That unpleasant, voice-calling shock is something almost everyone has experienced. What exactly is that tiny spark? And in the Edo period, when its true nature was completely unknown, how […]
