<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54caa0b4ec377_-_tubes_03_0510-lg-22070224.jpg>
<http://www.popularmechanics.com/science/energy/a5738/coating-turns-nanotubes-into-batteries/>