<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54cb162cabb4a_-_sci-fi-predictions-04-0713-lgn.jpg>
<http://www.popularmechanics.com/culture/g1232/7-gadget-predictions-sci-fi-authors-got-right/>