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Latest Sonar Stories

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2010-01-25 13:25:00

Only some bats and toothed whales rely on sophisticated echolocation, in which they emit sonar pulses and process returning echoes, to detect and track down small prey. Now, two new studies in the January 26th issue of Current Biology, a Cell Press publication, show that bats' and whales' remarkable ability and the high-frequency hearing it depends on are shared at a much deeper level than anyone would have anticipated"”all the way down to the molecular level. The discovery represents...

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2010-01-25 07:25:00

3-D imaging differentiates how various bats generate biosonar signals Researchers at The University of Western Ontario (Western) led an international and multi-disciplinary study that sheds new light on the way that bats echolocate. With echolocation, animals emit sounds and then listen to the reflected echoes of those sounds to form images of their surroundings in their brains. The team used state-of-the-art micro-computed tomography systems at the Robarts Research Institute in London,...

2010-01-20 04:00:00

SearchforAmelia.org Showcases State-of-the-Art Technology Used to Look for Amelia Earhart SAN DIEGO, Jan. 20 /PRNewswire-USNewswire/ -- The Waitt Institute for Discovery (http://wid.waittinstitute.org), a non-profit research organization established by Ted Waitt, founder and former Chairman of Gateway, Inc., has launched its new Search for Amelia Web site (http://searchforamelia.org). Created to publish the full results from the Institute's 2009 search for Amelia Earhart's Lockheed...

2009-12-03 12:01:00

GIVAT SHMUEL, Israel, Dec. 3 /PRNewswire/ -- DSIT Solutions Ltd., a subsidiary of Acorn Energy Inc. (Nasdaq: ACFN), announced today the successful completion and delivery of Stage I (out of two stages) of the Dolphin Submarine Tactical Trainer project for the Israeli Navy. The project, which was awarded to DSIT in June, 2007, following an international tender, called for the simulation of all sonar and weapons systems on board the submarine. The simulator allows the Dolphin tactical team of...

2009-11-12 08:07:00

Manassas, Va., Nov. 12 /PRNewswire/ -- Lockheed Martin (NYSE: LMT) successfully completed in-water testing of a new cylindrical array sonar system for Spain's S-80 class diesel electric submarines at the U.S. Navy's Underwater Test Facility at Seneca Lake, N.Y. The cylindrical array is the primary acoustic sensor for submerged operations. It consists of a special hydrophone configuration that is unique to every platform. Lockheed Martin designed and developed the S-80's new array under a...

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2009-10-28 10:55:24

The United Kingdom's deepest diving Autonomous Underwater Vehicle (AUV), Autosub6000, has been put through its paces during an extremely successful engineering trials cruise on the RRS Discovery, September 27 to October 17, 2009. Autosub6000 was working in regions of the Iberian Abyssal Plain in the North Atlantic deeper than 5600 meters and also around the steep and rugged terrain of the Casablanca Seamount, between Madeira and Morocco. The vehicle was designed and constructed by engineers...

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2009-10-26 07:24:00

Ultrasound and underwater sonar devices could "see" a big improvement thanks to development of the world's first acoustic hyperlens. Created by researchers with the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab), the acoustic hyperlens provides an eightfold boost in the magnification power of sound-based imaging technologies. Clever physical manipulation of the imaging sound waves enables the hyperlens to resolve details smaller than one sixth the length of...

2009-10-16 14:19:00

WINSTON-SALEM, N.C., Oct. 16 /PRNewswire-USNewswire/ -- To avoid becoming a bat's tasty treat, a species of tiger moth plays a trick with sound. The moth can make up to 450 ultrasonic clicks in a tenth of a second to jam the hungry bat's sonar and escape death. The discovery was made by Aaron Corcoran, a Wake Forest University graduate student, and William Conner, professor of biology at Wake Forest. "This is the first example of prey that jams biological sonar," Conner says....

2009-09-23 10:59:00

GIVAT SHMUEL, Israel, Sept. 23 /PRNewswire-FirstCall/ -- DSIT Solutions Ltd., a subsidiary of Acorn Energy, Inc. (Nasdaq: ACFN), has announced the signing of an agreement with a leading global Homeland Security (HLS) integrator securing orders for its underwater site security systems. Under the agreement the integrator commits to providing DSIT, with orders for the AquaShield(TM) Diver Detection Sonar (DDS) system totaling close to US$5,000,000 within the next six months. The agreement also...

2009-09-02 08:00:00

TEWKSBURY, Mass., Sept. 2, 2009 /PRNewswire/ -- Raytheon Company (NYSE: RTN) has delivered the next-generation AN/AQS-20A Minehunting Sonar and AN/ASQ-235 Airborne Mine Neutralization System to the U.S. Navy. As stated during an AMNS ribbon-cutting ceremony, "Fielding systems as promised is what makes a great industry partner!" said Donna Carson-Jelley, Navy program manager for Minewarfare (PMS 495). Considered critical components of the Navy's organic mine countermeasure arsenal, the...


Word of the Day
barghest
  • A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
  • A ghost, wraith, hobgoblin, elf, or spirit.
The origin of 'barghest' is not known, but it may be from perhaps burh-ghest, town-ghost, or German Berg-geist (mountain spirit) or Bär-geist (bear-spirit).
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