An Interesting Dream I Had

I dreamt I invented a material that, when penetrated, could turn kinetic energy into electrical energy...it was really fuckin cool too. Like if you shot at it with a gun, it would release a kind of lightning bolt of energy outward in response to it...very interesting. How it all worked exactly...well, I can't actually remember that part of the dream (conveniently), so now I'm tryin to work out how it might be possible, at least theoretically. *nods*