this big.. '---' (Real sizing from screen to IRL) and the explosion was like the size of my head, and wowee am I ever so super-dee-duper glad I used a pen instead of my hands!
though it wasn't a very destructive explosion, the only thing hurt were the wires, thank goodness! ...OH NO! I killed a pair of innocent wires! D= I'm a wire murderer! T.T the poor wire's wirey families will be all sad and might even want revenge!