It's used in a robotic arm that once moved underwater characters at Disney World.

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To get to your hotel room, you have to scuba dive 21 feet to what was once an underwater laboratory.

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Once in position, the underwater columns are filled with water and anchored to the sea floor with giant suction cups and tension cables.

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First, once the ship has been stabilized, an underwater platform will be built and watertight boxes, or caissons, fixed to the side of the ship that is above water.

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Meanwhile, the once staid European Central Bank has propped up Europe by piling increasing amounts of debt on its books from underwater banks and governments.

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