News tagged with underwater


Researchers Develop Flow Sensors Based on Blind Fish Hair Structures

Researchers Develop Flow Sensors Based on Blind Fish Hair Structures

Technology / Engineering

created Mar 24, 2009 | popularity 4.5 / 5 (4) | comments 1

(PhysOrg.com) -- A blind fish that has evolved a unique technique for sensing motion may inspire a new generation of sensors that perform better than current active sonar.


Tongan inspection team heads to undersea volcano (AP)

Tongan inspection team heads to undersea volcano

Space & Earth / Earth Sciences

created Mar 19, 2009 | popularity 4.7 / 5 (3) | comments 1

(AP) -- Scientists sailed Thursday to inspect an undersea volcano that has been erupting for days near Tonga - shooting smoke, steam and ash thousands of feet (meters) into the sky above the South Pacific ...


Climate change reduces nutritional value of algae

Biology / Ecology

created Mar 11, 2009 | popularity 2.7 / 5 (3) | comments 1

Micro-algae are growing faster under the influence of climate change. However, the composition of the algae is changing, as a result of which their nutritional value for other aquatic life is decreasing. And because algae ...


Unlocking mystery of the deep: Florida reef getting a road map

Space & Earth / Earth Sciences

created Mar 10, 2009 | popularity not rated yet | comments 0

Equipped with floating GPS units, side scan sonar and waterproof paper, college students dove 25 feet down into an underwater classroom with a pioneering assignment: create a three-dimensional, interactive map of a reef.


Turning the tide to energy

Turning the tide to energy

Technology / Engineering

created Mar 06, 2009 | popularity 3.5 / 5 (20) | comments 6

NASA researchers who developed a new way to power robotic underwater vehicles believe a spin-off technology could help convert ocean energy into electrical energy on a much larger scale. The researchers hope ...


Tail of a humpback whale

Whale sonar: Two pings are better than one

Biology / Plants & Animals

created Mar 04, 2009 | popularity 5 / 5 (1) | comments 0

Many whale species have sonar systems that send out two pings at once, allowing them to detect underwater objects with greater accuracy than even the most sophisticated human technologies, according to a study ...


Great Lake's sinkholes host exotic ecosystems

Great Lake's sinkholes host exotic ecosystems

Space & Earth / Environment

created Feb 24, 2009 | popularity 5 / 5 (8) | comments 0

Researchers are exploring extreme conditions for life in a place not known for extremes.


Debate unfolds over origin of grouped stones at lake's bottom

Other Sciences / Archaeology & Fossils

created Feb 15, 2009 | popularity 4.1 / 5 (8) | comments 2

Forty feet below the surface of Lake Michigan in Grand Traverse Bay, a mysterious pattern of stones can be seen rising from an otherwise sandy half-mile of lake floor.


Underwater stock options drive top executives turnover

Other Sciences / Other

created Nov 20, 2008 | popularity 4 / 5 (2) | comments 0

When the market price of company stock falls below the exercise price, the options are considered to be "out of the money" or underwater. Many publicly traded firms have become concerned about retaining highly valued executives ...


New research suggests changes in underwater data communications

Technology / Engineering

created Oct 14, 2008 | popularity 3 / 5 (2) | comments 0

An NJIT professor, who has discovered new communication channels in underwater environments and invented a technique to communicate data through these channels, will be honored later this month by the New Jersey Inventors ...


new underwater robot can hover in place

New underwater robot can hover in place

Technology / Engineering

created Sep 26, 2008 | popularity 4 / 5 (14) | comments 1

(PhysOrg.com) -- MIT researchers have designed a new robotic underwater vehicle that can hover in place like a helicopter -- an invaluable tool for deepwater oil explorers, marine archaeologists, oceanographers ...


Scientists making waves with wireless ocean monitoring

Space & Earth / Earth Sciences

created Aug 18, 2008 | popularity 4.5 / 5 (4) | comments 0

The Great Barrier Reef and other sensitive environments could in future be managed with the help of a marine wireless network developed by University of Queensland (UQ)-led research.


Research shows how insects use trapped oxygen to breathe underwater

Research shows how insects use trapped oxygen to breathe underwater

Other Sciences / Mathematics

created Jul 30, 2008 | popularity 4.3 / 5 (9) | comments 0

(PhysOrg.com) -- Hundreds of insect species spend much of their time underwater, where food may be more plentiful. MIT mathematicians have now figured out exactly how those insects breathe underwater.



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