“Collects charge through a spinning belt. Real simple to make, big arcing sparks are very visually impressive. Useful if you need a ton of voltage, and quite safe to play with.” Twilight chews on this while you put your phone in your pocket, then head towards the far door that leads to your bedroom. “I want to get a nap in, if you don’t mind. I just about pulled an all-nighter and I need to get up real late for something tonight.”