If you are not geeky enough to know what a Flux Capacitor is, then I shall tell you.
The flux capacitor was the core component of Doctor Emmett Brown’s time traveling DeLorean time machine in the movie Back To The Future. Dr Brown stated that the flux capacitor “is what makes time travel possible.”
The above Flux Capacitor tattoo belongs to Malte from Fuck Yeah, Tattoos Tumblr blog. Thanks man
Below is the original Flux Capacitor from Back To The Future.