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Underwater

Marine

CSIRO sensor detects explosives at sea

Clearing explosives is a major operation and removing the deadly residue of over a century of warfare is a never ending task. The problem is that before you can remove explosives you have to find them. That isn’t always easy – especially underwater, so Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO) has developed a new sensor that uses high-temperature planar gradiometers to seek out explosives in the sea. Read More

Wearables

Casio device lets scuba divers converse underwater

Ordinarily, if scuba divers want to talk to one another underwater, they have to wear special full-face masks that leave their mouths unobstructed by the regulator. Such masks are pricey and a bit cumbersome, however, so they’re usually only used by professional divers. Today, however, Casio announced the development of a new type of underwater voice communications device that works with plain old “eyes-and-nose-only” dive masks. Read More

Robotics

Autonomous swimming robot inspired by the sea turtle

Well, we shouldn’t be surprised. Scientists have created swimming robotic versions of the cow-nosed ray, the jellyfish, the sunfish, the tuna, and just the generic “fish,” so why not the sea turtle? That’s what a group of scientists from the ETH Zurich research group are in the process of doing, and they’ve named it naro - tartaruga (the original naro was another robotic tuna). As it turns out, a couple of the sea turtle’s natural features make for a pretty good robot.Read More

Robotics

BIOSwimmer robot mimics the humble tuna fish

Scientists involved in robotics research are increasingly looking toward biological systems for solutions to specific challenges, and when one considers that nature has been solving problems for rather a lot longer than we humans have, this makes sense. Such is the reasoning behind BIOSwimmer: an underwater surveillance robot created by the U.S. Department of Homeland Security's (DHS) Science and Technology Directorate (S and T) that takes its design cues from the tuna fish. Read More

Marine

Homeland Security's PLUTO sub designed to imitate narco subs

When someone mentions drug running, most people probably picture a person coming through an airport carrying a suitcase with a false bottom or with balloons stuffed up their nether regions. We don’t usually imagine things like submarines. Unfortunately, the South American drug cartels not only imagine them, but they build and operate them. To help combat these underwater smugglers, the Department of Homeland Security Science and Technology Directorate (S and T) is operating their own drug-running submarine called PLUTO to develop and test a new generation of detection equipment.Read More

Robotics

Underwater robots being developed to save damaged coral reefs

Scotland may not be the first place that comes to mind when you think of coral reefs, but the deep waters west of the nation are indeed home to reefs not unlike those found in the tropics. Unfortunately, a commercial fishing technique known as bottom trawling regularly damages that coral, putting the reefs at risk. Now, scientists are working on a possible solution to the problem – swarms of small, autonomous coral-fixing robots.Read More

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