Capacitors are in everything, but how do they work? This video by Collin Cunningham explains the history and function of the mighty capacitor!
So that was way cool, but what if society collapses and you run out of e-waste to take apart? This video from the toymaker blog explains how to make your very own capacitor from aluminum foil and cling wrap! I love that she plays minecraft! That game is responsible for many a procrastinating scientist!