When I was about 12 or so I had a AA battery and some copper wire I used for crafting. Out of nowhere I suddenly got really curious how good of a conductor that wire would be. So I pressed it onto both poles with my fingers. Had a nice black scorched line in my thumb for a few months because it turns out the excess energy needs to go somewhere. In this case in the form of extreme heat.
When I was about 12 or so I had a AA battery and some copper wire I used for crafting. Out of nowhere I suddenly got really curious how good of a conductor that wire would be. So I pressed it onto both poles with my fingers. Had a nice black scorched line in my thumb for a few months because it turns out the excess energy needs to go somewhere. In this case in the form of extreme heat.