| Article: | New York tests underwater turbines to produce power NEW YORK - On a recent morning, a crane sank a 16-foot rotor into the waters of the East River and divers swam deep to bolt it to the bottom. By early evening, as the northerly current sped up, the rotor began to spin, a big thunk sounded in the control room, a green light went on, and electricity began to pour into a nearby supermarket. |