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Tag: "underwater" at biology news

Robotic whiskers can sense three-dimensional environment

...in pipelines or on land-based autonomous rovers or underwater vehicles, was published in the Oct. 5 issue of the journal Nature. "We show that the bending moment, or torque, at the whisker base can be used to generate three-dimensional spatial representations of the environment," said Hartmann. "We used this...

Biologically inspired sensors can augment sonar, vision system in submarines

...ateral line that can provide the same functions in underwater vehicles. "Our development of an artificial later...man ability to detect, navigate and survive in the underwater environment," said Liu, a Willett Scholar and a professor of electrical and computer engineering at ...

UBC researchers reveal dwarf aquatic plants' hidden ancestry

...sonal freshwater pools and swamps, and may blossom underwater at depths of up to one metre, or as the pools dry out. "For more than a century, scientists have been piecing together the details of the rapid rise and early diversification of flowering plants," says Graham. "Discovering this living plant’s anci...

Tracking sperm whales and jumbo squid

...s today, Davis noted. "Adult sperm whales can stay underwater for more than an hour, but nobody knows exactly what they’re doing down there," he said. "We also know relatively little about the behavior of jumbo squid in the wild," Gilly added. "For example, it was only a couple of years ago that we discovere...

Study warns deep-sea mining may pose serious threat to fragile marine ecosystems

... mining oversight. The prospects for regulation of underwater mining are not good." The study appears in the ...20 metres of the seafloor, using remotely operated underwater mine cutters and a hydraulic pump system to transfer roughly two million tons of ore per year to the...

From the deep -- Researchers find new species of sea anemone

...ss that involves a lot of high-tech equipment like underwater video cameras attached to remotely operated vehicles (ROVs). Deep sea ROVs are also equipped with robotic arms and suction devices that are used to collect species. "It's like a submarine that's manned from the surface," said Daly, who plans to he...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...e Scripps scientists were originally interested in underwater noise effects and only later adapted their work to...ide a basis for developing systems that can detect underwater threats. Brian Borowsky will present an estimation of the distances at which threats can be detecte...

Palau's coral reefs show differential habitat recovery following the 1998 bleaching event

...her than historical averages. Using underwater digital video cameras, van Woesik and his team examined the rate of coral recovery at 13 different sites, and found that recovery rates increased over time; notably, sheltered bay areas, which suffered less in 1998, appeared to support recovery of ou...

'Short-circuit' found in ocean circulation

...ound Antarctica by tracing the path of helium from underwater volcanoes. The details are published in Nature this week. The team, led by Alberto Naveira Garabato of the National Oceanography Centre, Southampton (formerly based at the University of East Anglia), has discovered a 'short-circuit' in the circulati...

NASA-funded robotic sub finds bottom of world's deepest sinkhole

A robotic vehicle designed for underwater exploration plunged repeatedly into the depths of ...cenote, did not have a tunnel or any other obvious underwater connections with neighboring cenotes in the Mexican state of Tamaulipas. It also obtained numerous s...

New research shows sharks use their noses and bodies to locate smells

... and for the development of guidance of autonomous underwater vehicles (AUVs)"...

Definitive evidence found of a swimming dinosaur

An extraordinary underwater trackway with 12 consecutive prints provides the m...imeters wide. The spacing between them suggests an underwater stride of 243-271 centimeters. According to co-author Loic Costeur, Laboratoire de Planétologie ...

Antarctic icebergs -- Hotspots of ocean life

...oceanographer and ROV pilot. “We flew the ROV into underwater caves and to the undersides of the icebergs, identifying and counting animals with its color video camera, collecting samples, and surveying its topography.” Based on their new understanding of the impacts of the icebergs and their growing numbers...

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