He plans to put the storage bags through smaller scale land-based tests, with four-meter-diameter bags, to prove that his calculations are right.

CNN: Where to store wind-powered energy? Under water!

The nebulous field of nanotechnology, freighted with as much hype as legitimate promise, boils down to the process of manipulating matter on a molecular scale (a nanometer is one-billionth of a meter, about the width of ten hydrogen atoms).

FORBES: The Science of Small