Underwater Gliders Take Flight to New DepthsBy Andrew Bridges The Associated PressPublished: Nov 23, 2003 SAN DIEGO (AP) - A century after the Wright Brothers first took to the skies, the world of flight is pushing to new depths. Researchers are perfecting innovative gliders that can swoop and soar on journeys covering hundreds of miles and lasting for weeks - all deep beneath the ocean waves. The fledgling technology, barely a decade old, has already produced robotic submarine gliders that move slowly, with the nimbleness of a blimp. Now next-generation gliders are being developed to fly just as gracefully as...