Articles related to "Sonar"

More often than not, when a whale or dolphin beaches itself, scientists look at sonar as a possible cause. Is sonar responsible for substantial cetacean deaths?

A guide to the latest action alerts issued by environmentally focused groups working for positive change.

International cooperation is necessary to save whales.

Some of the loudest animal noises are used by whales to find food and to keep in touch over long distances.

Changes in dive patterns in response to naval exercises may cause the bends in beaked whales. Understanding why these marine mammals react to sonar may reduce losses.

Since 1939 Karl Donitz's U-Boats had been the terror of the seven seas but innovative new technology would end "The Sea Wolves" reign of destruction.

First launched in 1960, the SSN-594 Permit class were the world's first modern, quiet, deep-diving fast attack submarines.

Most people have heard CDs filled with whale sounds or songs. While it is a unique and relaxing sound, these chirps and clicks mean a lot more to whales than relaxation.

Is the Loch Ness monster a type of plesiosaur?

Whales face many man-made problems.

The 2005 storm season left huge amounts of wreckage behind for waterfront residents living along the Gulf of Mexico that is hazardous to navigation and wildlife.

The Loch Ness monster story draws thousands of tourists to the Loch Ness Centre at Drumnadrochit every year, but what does the exhibition consist of and is it good value?

Judy Katschke's tween surfer's adventures present a great teachable moment about environmental noise and how it impacts the world that gifted students live in and around.

Pink River Dolphins are playful and slow swimming fish are the best known of the five species of river dolphins.

The excavation, recovery and conservation of the Mary Rose used and developed many innovative marine archaeology techniques.

Adapting terrestrial methods, underwater archaeology allows the retrieval of clues to the past not always preserved on land.

A well-preserved fossil of a previously unknown species of bat has resolved an evolutionary conundrum - could bats fly before they could echo-locate their insect prey?

Ocean noise and harmful algal blooms eliminated as cause of death for 3 sub-adult blue whales. Large numbers of krill in ship channel full of fast boats cause fatalities.

Begun by the CIA, OPLAN 34A called for covert action against Communist North Vietnam including aerial bombing in Laos and DeSoto destroyer missions in the Tonkin Gulf.

The final resting place of the World War II submarine, USS Grunion, is found 64 years after its mysterious loss by the three sons of the submarine commander.

The Marine Mammal Protection Act is America's greatest contribution to cetacean and pinniped conservation. Is it enough to protect whales, dolphins, porpoises, and seals?

Join us for coverage of the Rolex Miami OCR to be held in Miami, Florida beginning on January 21, 2007 with Boating & Sailing at Suite101.

Electrical and mechanical sensors are widely used to characterize the performance and properties of components and systems, but are also found in household objects.

Lt Michael Murphy was awarded the Congressional Medal of Honor in 2007 after being mortally wounded while leading his Seal unit in Afghanistan in 2005.

Genetic studies prove that the right whales of the North Pacific are a separate species. But they in serious danger of extinction and very little is known about them

Five species of dolphin have evolved to live in big, muddy rivers. Convergent evolution has made them look very similar despite little genetic connection.

It's not the feeding frenzy of Hollyood movies, but even so, the master scuba diver wore a protective chain mail suit to hand-feed 12-footers with razor sharp teeth.

Take the ferry to the Cumberland Island National Seashore and go camping, hiking and beach combing, or visit historic sites and shop for antiques in St Marys Georgia.

A large, snake-like animal is said to make its home in the waters off the west coast of North America.

Five Roman shipwrecks off the coast of Italy could help shed light on the busy Italian- North Africa trade route as it existed in Roman times.

Moby Dick's whale is still being hunted by Japan and Indonesia. Oceanic pollution, underwater sound, boat traffic and drift nets also problems for the sperm whale.

U. S. Supreme Court begins the October 5, 2008 session seeming to avoid any cases that might split the court or the nation during the election season.

Beached whales often die despite the best efforts of those trying save them. Often the damage is already done as a result of being out of the water.

Critically Endangered whale population threatened by habitat loss, pollution and ocean noise. Reduced human hunting pressure since 1999 hasn't resulted in more belugas.

There are many different types of boats used in Alaska's commercial fishing industry. One of the larger vessels in use is the limit seiner.

Bats are symbolic of rebirth to Native Americans, anathemas to others and subjects of superstitions. Feared by some, bats are beneficial to the environment and humans.

The United Arab Emirates has long been seen in the West as a conservative country that could be an ally. Will the acquisition of new advanced corvettes help the West?

Automotive, recreational, outdoors and fitness consumers join airline pilots and air traffic controllers who depend on Global Positioning System (GPS) products.

Also known as the Shoal Harbor Museum, it's the residence of featured identified and anonymous specters. An investigation of the building's grounds was cancelled. Why?

A short walk in Portsmouth takes you from the house John Paul Jones lived during the American Revolution to a nuclear submarine-two pages in the city's 400-year story.

Bass are one of the most popular of fresh water game fish. Here's how to tell them apart - Largemouth, Smallmouth, Striped, Spotted, Kentucky, and Redeye Bass.

In 1945, the largest, most powerful warship afloat was the Imperial Japanese Navy's super-battleship Yamato.

Vancouver is a city fuelled on variety. Whether it's the arts, sports, dancing or just relaxing, Vancouver has something for everyone.

Sonar, radio frequency, and GPS technologies are being creatively used to develop crew safety systems that sound an alarm during a man overboard emergency.

Choosing a mantra or prayer is as simple as finding one that resonates with you. You can choose a mantra, or create your own with these examples from different cultures.

Okeanos Explorer represents the future of ocean research conducted by the United States through a vessel dedicated exclusively to ocean exploration.

Popular media isn't up to providing realistic characters who are disabled, so how can you, as a writer of fiction, do any better? Simple. Just write them as people.

In Rocheworld, author Robert Forward has his characters encounter alien life called Flouwen on the double planet system they explore.

Also known as the Mississippi Paddlefish or Spoon Bill, this popular sport fish is becoming extinct like the Chinese Paddlefish.

Dubbed "the true story of a U.S. cold war submarine's covert operations against the Soviet Union," this partially fictional account takes the reader on a secret mission.