Undersea Robots

choi

(1) Exploring the oceans | 20,000 Colleagues Under the Sea; Fleets of robot submarines will change oceanography. Economist, June 9, 2012
http://www.economist.com/node/21556551
("Their only known enemies are sharks (several have come back covered in tooth marks) and fishing nets")

(2) Open-surce Undrwater Robots for Explortion and Education
openrov.com
(Eric Stackpole; photos for OpenROV 2.3 Prototype)

Note:
(a) Click "About" button at the top horizontal bar and you will see specs for 2.3:
"Dimensions: 30cm x 20cm x 15cm
Weight: 2.5kg
Depth rating: ~100m
Speed: 1m/sec
Power: 8 onboard C batteries
Run time: ~1.5 hours"
(b) There is no video clips for 2.3. Here is one for 2.2.
OpenROV 2.2 water test with ballast. YouTube.com, uploaded by OpenROV on Jan 16, 2012.
www.youtube.com/watch?v=f30LX-ufbVs
(c) Only if you want to read more:

Brian Lam, A Mini Sub Made From Cheap Parts Could Change Underwater Exploration. New York Times, May 28, 2012 (blog).
http://bits.blogs.nytimes.com/20 ... rwater-exploration/