<p>In 2003, Russian physicists Andre Geim and Konstantin Novoselov found a way to produce graphene ? the thinnest substance in the world ? by using sticky tape to separate an atom-thick layer from a block of graphite.<br><br>Their efforts would win the 2010 Nobel Prize for Physics, and now the applications of graphene and other 'two-dimensional' substances form a worldwide industry.<br><br>Graphene is far stronger than steel, a far better conduct...