http://www.xconomy.com/boston/2008/06/13/as-irobot-and-university-of-washington-team-up-robotic-sub-competition-heats-up/ Business + Technology in the Exponential Economy Sat, 21 Nov 2009 22:30:41 -0600 http://wordpress.org/?v=2.8.6 hourly 1 http://www.xconomy.com/boston/2008/06/13/as-irobot-and-university-of-washington-team-up-robotic-sub-competition-heats-up/comment-page-1/#comment-20528 Gregory T. Huang Fri, 13 Jun 2008 16:00:47 +0000 http://www.xconomy.com/2008/06/13/as-irobot-and-university-of-washington-team-up-robotic-sub-competition-heats-up/#comment-20528 Right, it changes its center of gravity relative to its center of buoyancy, by changing its density and weight distribution. Basically it's meant for diving, while the shape of its wings allows it to glide horizontally. Right, it changes its center of gravity relative to its center of buoyancy, by changing its density and weight distribution. Basically it’s meant for diving, while the shape of its wings allows it to glide horizontally.

]]> http://www.xconomy.com/boston/2008/06/13/as-irobot-and-university-of-washington-team-up-robotic-sub-competition-heats-up/comment-page-1/#comment-20525 Wade Roush Fri, 13 Jun 2008 15:13:53 +0000 http://www.xconomy.com/2008/06/13/as-irobot-and-university-of-washington-team-up-robotic-sub-competition-heats-up/#comment-20525 @Brian: I was wondering the same thing. I found this explanation on the Web: "A Seaglider's propulsion system may not be immediately discernible, but it is effective. It propels itself through varying its buoyancy by pumping compressible oil between high- and low-pressure chambers that together act just like a swim bladder in a fish. Pitch and roll control come courtesy of the battery pack that can be slid back and forth and swung from side to side." See http://intellibriefs.blogspot.com/2005/10/auvs-for-mine-countermeasures-shine-at.html. @Brian: I was wondering the same thing. I found this explanation on the Web: “A Seaglider’s propulsion system may not be immediately discernible, but it is effective. It propels itself through varying its buoyancy by pumping compressible oil between high- and low-pressure chambers that together act just like a swim bladder in a fish. Pitch and roll control come courtesy of the battery pack that can be slid back and forth and swung from side to side.” See http://intellibriefs.blogspot.com/2005/10/auvs-for-mine-countermeasures-shine-at.html.

]]> http://www.xconomy.com/boston/2008/06/13/as-irobot-and-university-of-washington-team-up-robotic-sub-competition-heats-up/comment-page-1/#comment-20520 Brian Fri, 13 Jun 2008 13:39:47 +0000 http://www.xconomy.com/2008/06/13/as-irobot-and-university-of-washington-team-up-robotic-sub-competition-heats-up/#comment-20520 What propels it (no moving external parts)? What propels it (no moving external parts)?

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