“Tube-Essence” — The Discovery Files

Vanderbilt University engineers have discovered how to break carbon dioxide in air into carbon and oxygen, and then stitch the carbon together to make carbon nanotubes — a valuable engineering material. What one researcher called “black gold,” the tiniest carbon nanotubes are stronger than steel and more conductive than copper, and reducing their cost of production would be a boon for the manufacturing of tires and batteries.