Edison's 1879 bulb experiments may have unintentionally produced graphene

What do Thomas Edison and the 2010 Nobel Prize winners in physics, Konstantin Novoselov and Andre Geim, have in common? According to a recent publication from Rice University’s James Tour lab in ACS Nano, it could be graphene—an answer that might have confounded Edison, who died nearly 20 years before physicist PR Wallace proposed that such a substance could exist and nearly 80 years before Novoselov and Geim received the Nobel Prize for isolating and characterizing it.