Monday, August 15, 2011

Making Ships Efficient and Invisible

U.S. Navy Ships at Sea Wikimedia Commons

Anti-Wave Tech Tricks Ocean Water Into Standing Still, Making Ships Efficient and Invisible -- Popular Science

We’ve already seen how future ships can be cloaked against sonar, and maybe someday even space and time. Now researchers say they can cloak the ships’ wakes, tricking water itself into acting as though nothing is there.

A new metamaterial cloaking system can trick water into standing still as an object moves through it, by eliminating the shear force and reducing water displacement, Duke University researchers say. This in turn reduces the amount of energy required to move an object — say, a ship — through the water, theoretically saving fuel.

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My Comment: And this is the research that they are publicizing .... I would love to know what they are not telling us.

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