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Latest Sonar Stories

Image 1 - Multibeam Sonar Can Map Undersea Gas Seeps
2011-10-07 03:41:44

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 the National Oceanic and Atmospheric Administration (NOAA). This finding, made onboard the NOAA ship Okeanos Explorer in the Gulf of Mexico, will lead to more effective mapping of these gas seeps and, ultimately, enhanced understanding of our ocean environments. The mapping technology,...

Bats Have Fastest Known Mammal Muscle
2011-09-30 05:04:01

Bats derive their ability to use echolocation, the bouncing of sound waves off objects to produce an accurate representation of the environment in total darkness, from so-called “superfast” muscles, researchers reported in latest issue of the journal Science. These superfast muscles, which are located in the bats´ larynx, are a physical trait never before seen in mammals, and allow the bate to make a rapid series of calls as they home in on their prey.   They...

2011-09-14 11:32:47

A new study reveals that the way fruit bats use biosonar to 'see' their surroundings is significantly more advanced than first thought. The study, published September 13 in the online, open access journal PLoS Biology, examines Egyptian fruit bats (Rousettus aegyptiacus), which use echolocation to orient inside their caves and to find fruit hidden in the branches of trees. Their high-frequency clicks form a sonar beam that spreads across a fan-shaped area, and the returning echoes allow them...

Image 1 - WHOI Studies Hydrocarbon Flow Rate Of Deepwater Horizon Spill
2011-09-06 05:23:09

  Researchers at the Woods Hole Oceanographic Institution (WHOI) have calculated the flow rate of the BP Macondo well to be about 57,000 barrels of oil per day, totaling close to 5 million barrels of oil and nearly 100 million standard cubic feet per day of natural gas released from April 2010 to July 2010. The study results were published in the online issue of the Proceedings Of The National Academy Of Sciences (PNAS). The estimates matched those made by the federal government...

2011-08-15 08:00:00

TEWKSBURY, Mass., Aug. 15, 2011 /PRNewswire/ -- The U.S. Navy announced the successful launch and recovery of the Remote Multi-Mission Vehicle (RMMV) carrying the Raytheon-developed AN/AQS-20A minehunting sonar. The launch and recovery was the first demonstration of the unmanned, remotely-operated RMMV deployed from the USS Independence (LCS 2) while underway. AN/AQS-20A is a critical element of the U.S. Navy's mine countermeasure capability and the only minehunting sonar sensor developed,...

2011-08-05 07:30:00

GIVAT SHMUEL, Israel, Aug. 5, 2011 /PRNewswire/ -- DSIT Solutions Ltd., a subsidiary of Acorn Energy Inc. (NASDAQ: ACFN), announced that its Projects Division was awarded a new manufacturing and simulator development contract valued at approximately $1.75 million. The customer is a leading integrator with whom DSIT enjoys a long and mutually beneficial business relationship. Work on the project has already begun and is expected to be completed in the middle of 2012. The customer has...

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2011-07-31 07:15:59

In a paper published recently in the journal Science, researchers at Brown University and from the Republic of Georgia have learned how bats can home in on a target, virtually dismissing other objects in their midst. The trick lies in their neurons: Bats can separate a cavalcade of echoes returning from their sonar blasts by distinguishing changes in amplitude "” the intensity of the sound "” between different parts of each echo within 1.5 decibels, to decide whether the object is...


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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