News tagged with sonar system
Whale sonar: Two pings are better than one
Mar 04, 2009 |
5 / 5 (1) |
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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 ...
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Study Shows Sonar Did Not Harm Fish
Jul 05, 2007 |
3.3 / 5 (4) |
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A new University of Maryland study in the July issue of the Journal of the Acoustical Society of America reports that high powered sonar, like that used by U.S. Navy ships, did not harm test fish, including their ...
Arctic expeditions find giant mud waves, glacier tracks
Space & Earth / Earth Sciences
Dec 12, 2007 |
4.2 / 5 (6) |
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Scientists gathering evidence of ancient ice sheets uncovered a new mystery about what's happening on the Arctic sea floor today.
Probing question: Why do whales beach themselves?
Biology /
Apr 25, 2008 |
3.9 / 5 (35) |
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Whales are the largest marine mammals in the world — the smallest species weigh in at several tons. When whales beach themselves, they can die simply from the crushing weight of their own bodies or from overheating due to ...
One fish, two fish: New MIT sensor improves fish counts
Feb 02, 2006 |
4.7 / 5 (3) |
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Researchers at MIT have found a new way of looking beneath the ocean surface that could help definitively determine whether fish populations are shrinking.
NASA-funded robotic sub finds bottom of world's deepest sinkhole
Space & Earth / Earth Sciences
May 31, 2007 |
4.4 / 5 (29) |
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[B]Carnegie Mellon researchers use sonar to map, demystify El Zacatón[/B] A robotic vehicle designed for underwater exploration plunged repeatedly into the depths of Mexico’s mysterious El Zacatón sinkhole in late May, fin ...
Biologically inspired sensors can augment sonar, vision system in submarines
Feb 21, 2007 |
3.7 / 5 (6) |
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To find prey and avoid being preyed upon, fish rely on a row of specialized sensory organs along the sides of their bodies, called the lateral line. Now, a research team led by Chang Liu at the University of Illinois at Urbana-Champaign ...
Robot sub searches for signs of melting 60 km into an Antarctic ice shelf cavity
Space & Earth / Earth Sciences
Mar 17, 2009 |
4.5 / 5 (4) |
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Autosub, a robot submarine built and developed by the UK's National Oceanography Centre, Southampton, has successfully completed a high-risk campaign of six missions travelling under an Antarctic glacier.
Whales evolved biosonar to chase squid into the deep
Biology /
Sep 05, 2007 |
3.8 / 5 (11) |
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Behind the sailor's lore of fearsome battles between sperm whale and giant squid lies a deep question of evolution: How did these leviathans develop the underwater sonar needed to chase and catch squid in ...
Missing link shows bats flew first, developed echolocation later
Biology /
Feb 13, 2008 |
4.3 / 5 (18) |
2
The discovery of a remarkably well-preserved fossil representing the most primitive bat species known to date demonstrates that the animals evolved the ability to fly before they could echolocate.
Slam dunk for future smart robots
Dec 14, 2009 |
5 / 5 (3) |
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(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 ...
List of search results for sonar system
