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Dave Fratantoni

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Call of the Whales

Call of the Whales

Robotic gliders equipped with acoustic monitoring devices can now eavesdrop on whales, enabling researchers to locate the elusive animals before they surface—and to warn ship pilots in the area to slow down to reduce the…

The Great South Channel

The Great South Channel

When people are hungry, they go to a place where they know they can find their favorite food. Right whales do much the same thing. In the Great South Channel, a deep-water passage between Nantucket…

'Green' Energy Powers Undersea Glider

‘Green’ Energy Powers Undersea Glider

Researchers have successfully flown the first thermal glider through the ocean—a robotic vehicle that can propel itself for several months across thousands of miles, using only heat energy from the ocean. In April 2008, a…