I wonder if these can be considered the next generation of underwater gliders. There was a very interesting program on them recently - either on PBS or Discover

I wonder if these can be considered the next generation of underwater gliders. There was a very interesting program on them recently - either on PBS or Discovery, can't recall exactly. http://en.wikipedia.org/wiki/Underwater_gliders http://en.wikipedia.org/wiki/Underwater_gliders One of these made an Atlantic crossing. http://ocean.si.edu/ocean-news/underwater-robots-explore-ocean http://ocean.si.edu/ocean-news/underwater-robots-explore-oce...