News tagged with sonar
Navy study: Sonar, blasts might hurt more sea life
(AP) -- The U.S. Navy may hurt more dolphins and whales by using sonar and explosives in Hawaii and California under a more thorough analysis that reflects new research and covers naval activities in a wider ...
May 11, 2012 |
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How bats 'hear' objects in their path
(PhysOrg.com) -- By placing real and virtual objects in the flight paths of bats, scientists at the Universities of Bristol and Munich have shed new light on how echolocation works. Their research is ...
Nov 24, 2011 |
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Bats lend an ear to sonar engineering
Researchers have mapped out the diversity of bat ears in a hope to inspire the design of new intuitive methods of manipulating waves with physical shapes, such as SONAR and RADAR.
May 10, 2011 |
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Whales 'scared' by sonars, but scientist say its not just sonars that could cause problems
(PhysOrg.com) -- Beaked whales are frightened by sonars used to hunt for submarines, according to new research.
Mar 14, 2011 |
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Madly Mapping the Universe
(PhysOrg.com) -- It takes special software to map the universe from noisy data. A Berkeley Lab code called MADmap does just that for the cosmic microwave background and has now been adapted by scientists probing ...
Space & Earth / Space Exploration
Feb 04, 2010 |
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Nanotech Speakers Hold Promise for Sonar Uses
(PhysOrg.com) -- UT Dallas researchers have found that carbon nanotube sheets perform well as underwater sound generators and noise-canceling speakers, two highly desirable traits for submarine sonar and stealth ...
Jun 14, 2010 |
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Scientists survey seabed fractured by Japan quake
Scientists on Thursday launched a mission to the seabed off Japan where a massive quake triggered last year's devastating tsunami, to get their first proper look at the buckled ocean floor.
Space & Earth / Earth Sciences
Mar 08, 2012 |
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Slam dunk for future smart robots
(PhysOrg.com) -- 'What does the world look like' and 'where am I' are two questions robots must solve if they are to act autonomously in an unknown environment. Work by European researchers will help future ...
Dec 14, 2009 |
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A glimpse at the Earth's crust deep below the Atlantic
Long-term variations in volcanism help explain the birth, evolution and death of striking geological features called oceanic core complexes on the ocean floor, says geologist Dr Bram Murton of the National ...
Space & Earth / Earth Sciences
Nov 12, 2009 |
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Understanding methane's seabed escape
A shipboard expedition off Norway, to determine how methane escapes from beneath the Arctic seabed, has discovered widespread pockets of the gas and numerous channels that allow it to reach the seafloor.
Space & Earth / Earth Sciences
Sep 19, 2011 |
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Underwater robot probes depths for Istanbul quake clues
A state-of-the-art underwater robot called BOB may hold the key to protecting millions of people around Turkey's biggest city against a massive earthquake scientists say is all but inevitable.
Space & Earth / Earth Sciences
Nov 14, 2009 |
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Multibeam sonar can map undersea gas seeps
A technology commonly used to map the bottom of the deep ocean can also detect gas seeps in the water column with remarkably high fidelity, according to scientists from the University of New Hampshire and ...
Space & Earth / Earth Sciences
Oct 06, 2011 |
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Toward cheap underwater sensor nets
UC San Diego computer scientists are one step closer to building low cost networks of underwater sensors for real time underwater environmental monitoring. At the IEEE Reconfigurable Architectures Workshop ...
May 27, 2009 |
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'Titanic' mapping expedition sets sail (Update)
A high-tech expedition that aims to create a detailed map of the wreckage of the Titanic, nearly a hundred years after the fabled ship sank in the Atlantic, set sail from Canada on Monday. ...
Other Sciences / Archaeology & Fossils
Aug 24, 2010 |
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Researchers investigate marine mammal behavior and responses to sound
(PhysOrg.com) -- A team of researchers recently completed a two-month research project off the Southern California coast, part of a collaboration to study marine mammal behavior and responses to sounds in ...
Oct 21, 2010 |
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