Oceanology: Robot 'Gliders' Swim The Undersea World -- New Scientist
THE way we study oceans could be transformed by a high-tech "surfboard" that generates its own power from sunlight and water waves. The device is capable of navigating at sea for months at a time and recently completed a 4000-kilometre trip from Hawaii to San Diego, California.
Read more ....
My Comment: I am curious to know if (and how) this technology can be applied to larger vessels in the US Navy ... because it sounds cool to me.