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March 30, 2012
Jeff Bezos ,the founder of e-commerce company Amazon, has been located at the bottom of the Atlantic the rocket engines that led to the Apollo 11 space, the ship that brought the first man on the moon in 1969.
On his personal blog, Bezos explained that, thanks to the techniques of exploitation by sonar, found the "five huge engines" to about 4,300 meters deep. Following the discovery, the employer, an enthusiast for space exploration, explained that his intention is to get all the engines to the surface to see what the state where they are.
"No word yet on what conditions may be the engines after hitting the ocean at a great speed, and after being in salt water for over 40 years," said Bezos.
As explained to the experts, F1 engines are found, which were used in the Saturn V rocket that brought the lander out of Earth's atmosphere and put the mission en route to the Moon.
As indicated in the reports of the flight, the engines ran a few minutes before separating from the rocket to plunge to Earth somewhere in the Atlantic Ocean.Bezos has described as a "modern marvel" that generated 32 million horsepower and burned every second of his brief life some 2,700 kilograms of kerosene and liquid oxygen rocket.
"I was five when I saw on television the development of the Apollo 11 and certainly that was a big contribution to my passion for science, engineering and exploration," said on its website.
Moreover, Amazon's founder explained that he would ask permission to NASA, the owner of the engines in order to display them in the future at the Museum of Flight in Seattle (United States).
This attempt to recover the F1 engines is Bezos' first foray into the world of space technology. In 2000 he founded a private space firm, 'Blue Origin, "which has received funding from NASA and is working to make suborbital space flights for commercial purposes.
In Australia, a highly toxic, alien invader is attacking the protected habitat of Moreton Bays endangered green turtles. Destroying all the vegetation in its path, the notorious fireweed is wreaking havoc on the turtles natural diet and challenging the comeback of these ancient creatures. Deploying National Geographics Crittercam, researchers learn how the turtles are coping, and search for ways to protect them from the invading slime.
Crittercam was on the scene at Seal Island, South Africa, home to Cape fur seals, and the realm of the great white shark. Great whites are protected as an endangered species here, but its the seals that need protection. Wild Chronicles prowls the ocean floor with a great white shark on the hunt. Join a high speed chase from the sharks point of view as a seal swims for its life and gives the shark a run for its money.
Wild Chronicles and Crittercam join the hunt with a hungry leopard seal in the icy waters of Antarctica. Razor sharp teeth help make the leopard seal a top predator in this land of ice floes. However, Crittercam discovers that stealth and cunning are equally important to catching the next meal.
Publicado por Persiventana Solutions en 12:41:00 AM
A thousand miles off the coast of Portugal, the team from Crittercam used a revolutionary camera technology to investigate the deep water tendencies of the sperm whale. Join Wild Chronicles on this journey beneath the waves where scientists are making new discoveries about the diving behavior and vocalizations of these underwater behemoths.
Publicado por Persiventana Solutions en 12:40:00 AM
Researchers get a surprising turtle-eye view of never-before-seen leatherback mating behavior. While researchers know much about turtle habits on shore, these deep-sea swimmers are hard to find beneath the waves. Wild Chronicles reveals extraordinary underwater footage that helps unlock the secret lives of leatherback turtles.
Publicado por Persiventana Solutions en 12:39:00 AM
Wild Chronicles heads to the Florida Keys where one of the fiercest predators in the sea shares shallow waters with beachgoers. Tenacious and sometimes aggressive, bull sharks will eat just about anything — and they are known to attack humans.
In an effort to understand more about their feeding habits, researchers call on the innovative technology of Crittercam to get an underwater look at bull shark behavior.
Publicado por Persiventana Solutions en 12:23:00 AM
Join Wild Chronicles on a journey to the Arctic where wildlife filmmaker meets bowhead whale — one of nature's most long-lived mammals. Not much is known about this mysterious giant, but with a little help from National Geographic's Crittercam the filmmaker gets a breathtaking glimpse into the whale's secret world. The revealing footage has helped researchers discover how these whales can survive centuries in their freezing habitat.
Publicado por Persiventana Solutions en 12:22:00 AM
The haunting calls of blue whales can travel across thousands of miles of ocean, and Wild Chronicles is on a mission to find out why these solitary giants are so talkative. For the first time ever, National Geographic's Crittercam records both video and underwater sound of blue whales calling. The results reveal that these whales may not be so solitary after all — the calls could be about companionship.
You've seen sharks make movies and you may have seen them in the wild, but have you ever seen sharks mate? Few people have. Wild Chronicles follows National Geographic's Crittercam team headed for the south coast of Florida for an intimate encounter with one of the ocean's most successful predators.
With many shark populations plummeting, researchers hope Crittercam's shark-eye view of an underwater mating extravaganza will reveal their mating mysteries while there is still time to make a difference.
Crittercam plunges with penguins into the icy Antarctic Ocean where an astonishing discovery is made about penguin feeding techniques. Scientists believed that penguins foraged the ocean floor for food, but an emperor penguin outfitted with Crittercam proves these clever birds actually dive deep into the ocean to gain a vantage point on fish swimming near the surface.
The feature film March of the Penguins used Crittercam's spectacular underwater footage to take viewers below the ice. Now Wild Chronicles reveals more of Crittercam's breathtaking images of life from a penguin's point-of-view.
Publicado por Persiventana Solutions en 12:20:00 AM
In the wake of a summer season of high profile attacks, Wild Chronicles examines how by learning more about sharks, people can co-exist with them more safely. National Geographic marine biologist and inventor Greg Marshall deploys his Crittercam technology for the first time, allowing viewers to see the world through the eyes of a 200-pound bull shark.
Filming wild animals is always a gamble, and the price is high, but the work pays off, opening up an unprecedented view of shark behavior and the deep ocean.
Publicado por Persiventana Solutions en 12:19:00 AM
Crittercam reveals crucial evidence that could solve the Northwest Hawaiian Islands mysterious monk seal deaths — the only endangered marine mammals found entirely within the United States. While most adults are healthy, eight out of ten Hawaiian monk seal pups are dying before age two.
With the help of three juvenile seals, Wild Chronicles follows the Crittercam crew collects evidence of natural and man-made dangers in the marine environment and discovers a key feeding ground in a deep sea plain once thought to be a wasteland — evidence that will play a critical role in saving the monk seal from extinction.
Publicado por Persiventana Solutions en 12:18:00 AM
March 28, 2012
Publicado por Persiventana Solutions en 6:49:00 AM
The researchers, with the aid of submarines, have shown the effects of oil platform in the tissues of deep-water coral colonies
Six months after the accident in April 2010, the rig Deepwater Horizon, which generated a massive oil spill in the Gulf of Mexico, a group of scientists from several U.S. institutions conducted an oceanographic survey to investigate the effects of disaster marine life in the region.
They focused on communities of deep water species that live at 1,300 feet below the surface, such as coral colonies. Thanks to underwater robots could explore a relatively extensive.
In the colonies located about 20 kilometers from the platform, corals showed no damage, but where were about 11 kilometers were covered with a brown substance and tissue damage appreciated.
In the first campaign, in October 2010, scientists were unable to clearly associate the origin of the dense substance to the discharge of the Deepwater Horizon, but on a later expedition, in December of that year, analyzes were performed on corals and identified the signing of oil spilled in the accident. Helen White (Haverford College, Pennsylvania) and colleagues present the results of this research in the journal Proceedings of the National Academy of Sciences (USA).
Coral colonies of deep water, usually bright yellow, are obscured in these colonies Gofo of Mexico affected by the dumping of the oil rig Deepwater Horizon.
"Biological communities in the deep Gulf of Mexico are separated from human activity on the surface for more than a mile of water and did not expect the deep-sea corals were affected by the typical oil spill," White said in a statement the National Science Foundation (NSF) U.S..
"But given the unprecedented nature of this spill, its effects are broader than the little that occur on the surface."
The research, part of a project of the National Oceanic and Atmospheric Administration (NOAA) and the Office of Ocean Energy Management, used the remotely operated submarine Jason II, which were inspected in nine places at distances over 20 miles of rugged platform and points closer to it. The scientists found damaged communities within 11 kilometers of the spill, to the southwest.
"As the submarine approached coral community enough to have good vision, it became obvious that something was wrong: it was all too white and brown, and coral and sea stars did not show enough color," explains Charles Fischer (Penn State).
In December 2010, scientists made another expedition in the area using the Sentry AUV, to map and photograph the seabed, and the Alvin, with capacity in the fall for the pilot and two scientists. Furthermore, this submarine could take samples of corals and sediments.
Since the oil can flow from the cracks in the seafloor in the region, it was difficult to determine the source of oil in the coral samples.
But thanks to a technique called gas chromatography, which separates compounds by their molecular weight oil, scientists have identified the footprint of the oil from the Deepwater Horizon.
March 27, 2012
A project of the U.S. agency takes pictures of the world's oceans that recall the paintings of the great Dutch painter
The surface of the Earth's oceans recorded for 30 months. This is the project that NASA has undertaken since its Scientific Visualization Studio and displays the images collected between June 2005 and December 2007 of the world's oceans. The project is called Perpetual Ocean.
The animation is created using high-resolution model for the world's oceans of the U.S. space agency, which is normally used to perform simulations and to predict changes in the currents. This time the results show a movement and shapes and colors that recall the paintings of the great Dutch artist Vincent Van Gogh.
March 25, 2012
The director James Cameron arrived on Sunday to the seabed deep, the Mariana Trench in the western Pacific Ocean, becoming the first person to get in the last half century.
Cameron, director of Titanic (1997), dipped to 10,898 meters deep in a submarine designed for the occasion in order to explore and record the place. During the dive, the director tweeted: "Hitting bottom has never been so enjoyable."
The only fall to the bottom of this pit he made in 1960 the U.S. Navy Lt. Don Walsh and Jacques Piccard Swiss oceanographer who went there only 20 minutes. Cameron took two hours to get to the bottom of the pit. His ship is equipped with cameras and lights so you can shoot in the dark. Before diving, the filmmaker said making the descent was "the realization of a dream."
I grew up in a time when people lived reality of science fiction, "said Cameron." The astronauts went to the moon and (Jacques) Cousteau explored the ocean. That's what I grew up and what he valued in my childhood. "
The submarine Deepsea Challenger was manufactured in Australia. Cameron spent the last years working in secret with his team of engineers in the design and construction of the device, which weighs 11 tons and is over seven meters long.
He describes it as a "torpedo vertical" that glides through the water allowing a rapid decrease. The small compartment in which the filmmaker traveled is made of heavy gauge steel and can withstand 1,000 atmospheres, the pressure at the maximum depth experience.
The submarine has so many lights and cameras that looks like a television studio submarine. The director intends to release a documentary about his fall. The multimillion-dollar expedition Cameron, who has been financed by himself, the Rolex watch brand and National Geographic, is the first manned mission to the maximum depth underwater half a century.
March 24, 2012
The submersible in which the filmmaker James Cameron seeks solo down to deeper marine trench on Earth, next to the Mariana Islands in the eastern Pacific, has successfully passed the test dives.
"We conducted several dives, and all have been successful," said Cameron was quoted by the magazine 'National Geographic'. He also said that the dive to the bottom of Challenger, the deepest part of the Mariana Trench, will be held in the coming days, aboard the submarine 'Challenger Deepsea'.
Your trip will have a scientific, so the filmmaker of 57 years, plans to spend 6 hours on the seabed collecting samples and filming issue. It plans to bring the action sequel of 'Avatar' "in an underwater world."
Until now, only the Swiss oceanographer Jacques Piccard and Don Walsh mate (1960), have been able to descend into the abyss Challenger, with its 10,923 meters is the deepest top of all oceans.
The 'Challenger Deepsea' has been designed and built for this purpose, especially to withstand the pressure. In fact, it is estimated that its size (8 meters) will be reduced by 6.3 cm during the descent.
According to Cameron, the project will help answer some hypotheses, for example, how some sea creatures survive under such pressure, no light and temperatures around zero degrees.
The best wildlife funnies from Earth-Touch. See the strangest and most colourful animals in nature and discover how they change their body colour to mimic their changing environment.
Bull sharks are known as some of the most aggressive and unpredictable animals in the ocean.
The Vampyroteuthis infernalis is an animal hard to label, first described by the German biologist Dr. Carl Chun in 1903 as an octopus soon verified that the animal was so close to it as a squid.
The problem was resolved fairly, placing it as a species that is between the octopus and squid, which is why so popular also also be called vampire or vampire squid octopus.
Its unique retractable sensory filaments justify the Vampire Squid's placement in his own order: Vampyromorphida (before Vampyromorpha), although it shares similarities with the squids and octopuses. As a phylogenetic relic, is the only known survivor of his order.
It lives in deep enough, the animal of the video was recorded at 1,000 meters deep, this depth there is about 100 atmospheres pressure, there are plants and animals that live there feed on other creatures of the deep, or animal plankton higher layer in dying fall to the depths.
The Vampyroteuthis is small about 30 inches and is capable of producing bioluminescence with their eyes covered with photophores that are proportionately the largest in the animal kingdom at 2.5 cm in diameter.
It has a curious method of defense based on his own escape simulate lighting his eyes and then folding his body as if it was wrapped himself thus getting the impression of moving away at high speed to launch a jet later that blind Luminos confuse predators.
Despite its name, the octopus has nothing to do with sucking blood, but his name is due to the red color of the skin, living in the depths, and special membranes that bind its tentacles and reminiscent of the membranous wings of bats.
Lives with very low oxygen concentrations in water, as it has a pigment in blood (hemocyanin) that extracts oxygen from water in an efficient manner, that together with its low metabolism and gill surfaces higher in proportion to the Most animals allow them to survive in such conditions.
The membrane has infernalis Vampyroteuthis join gelatinous tentacles like some sort of octopus and two fins on its head that used to move in a fluid.
The two long strands of yellow he has will serve to detect prey and predators and are "activated" with movement.
The goblin shark pink (Mitsukurina owstoni) is a species of shark that inhabits the deep, is very characteristic appearance due to his nose prominent, his jaws are unusual in that they remain retracted rest position and attacking or feeding project outwardly.
The first specimen was caught by a fisherman in the "Kuroshio" near the coast of Yokohama in 1898, who named him tenguzame in Japanese means "ghost fish" or "tengu fish."
The creature measured five feet. Another specimen was captured and held in Japan Tokai University, but died after a week.
The shark can reach up to 3.3 meters long and 159 kilograms live in all oceans of the world except the poles but in the Sea of Japan is where they have found as many specimens of this animal that lives among the 250 and 1300 meters deep.
It is a voracious predator that feeds on squid is and engulfing other deep-sea fish with jaws retract speed.
Collection of several videos and images which focus the existence of these mysterious sers who live in the depths of our seas.
March 23, 2012
Fundamental changes in seawater chemistry are occurring throughout the world's oceans. Since the beginning of the industrial revolution, the release of carbon dioxide (CO2) from humankind's industrial and agricultural activities has increased the amount of CO2 in the atmosphere.
The ocean absorbs almost a third of the CO2 we release into the atmosphere every year, so as atmospheric CO2 levels increase, so do the levels in the ocean. Initially, many scientists focused on the benefits of the ocean removing this greenhouse gas from the atmosphere.
However, decades of ocean observations now show that there is also a downside — the CO2 absorbed by the ocean is changing the chemistry of the seawater, a process called ocean acidification. This change in the ocean's chemistry will have profound effects on life in the ocean, and those who depend on it.
A mother gray whale lifted up her calf, seemingly to help it get a better view of the excited onlookers, and we caught it all on camera.
The optical technology facilitated a group of explorers of the deep ocean out the first images of the two whole sections of the Titanic. The offers readers the April issue of the magazine 'National Geographic', as part of the centenary of the wreck.
Previously, the low light of the ocean floor allowed to adopt different positions fragmentary minimally approaching the subject of the photograph.In the 25 years since the discovery of the remains of the emblematic boat managed to accumulate thousands of photos, but none was a full picture of the place where lie the wrecks.
© RMS Titanic, Inc., produced by AIVL, the Woods Hole Oceanographic Institution
A three-dimensional navigation probe was instrumental in gathering a lot of photographic images in a single portrait. Assembled the first image showing the cover from above, under a right angle. After the Titanic was recorded from different points of view, resulting in representation of all the details of its current appearance.
© RMS Titanic, Inc., produced by AIVL
Various positions to assess the damaged that the remains of the ship.
© RMS Titanic, Inc., produced by AIVL
The ultrasonic probe and the photographic works were carried out in an area of 5 by 3 nautical miles. Because of that were located all tiny fragments lost the legendary steamship, the April 10, 1912 sailed from the British coast for four days later collide with an iceberg in the North Atlantic.
A team of U.S. scientists has created a robot that moves underwater like a jellyfish, which transforms the surrounding hydrogen energy, so you never have to refuel.
The robot is in the earliest stages of its development, but the engineers are confident that its structure could be used as a vehicle to submarine rescue operations.
March 22, 2012
See what happens when all the animal predators gather for the amazing wildlife spectacle known as the Sardine Run. Sharks, massive whales, dolphins and diving seabirds attack the sardines from all sides.
Engineers in the United States recently announced the invention of a hydrogen-powered robot that moves in the water as do the robot is called Robojelly medusas.El and although still in beta, its designers hope it can be used in operations rescue.
According to Yonas Tadesse, lead author of the study, so simply swimming with jellyfish make them an ideal model in the design of such vehicles. Being driven hydrogen-powered systems, in theory the robot should not run out of fuel.
"For all we know, is the first time an underwater robot uses hydrogen as an energy source," said Tadesse.
Jellyfish move using circular muscles attached to that kind of shell gelatinous umbrella-shaped bell with.
When these muscles contract, expelling the water shell, allowing you to move. When these are relaxed, the jellyfish returns to its initial state.
To mimic this, the vehicle will use what is known as "thermal memory effect", a property of materials called "smart", you are able to remember its original shape.
These cover materials carbon nanotubes, a kind of pure carbon rods with electrical properties, coated in turn with a platinum black.
The robot will be promoted by the heat induced from a chemical reaction between oxygen and hydrogen present in the water along with the platinum surface.
The heat of this reaction are transferred to the artificial muscles of robot, which will change its shape. This means that the Robojelly can refuel their environment and not have to resort to external power sources or batteries.
The team recognized Virginia Tech research center expects this to avoid running out of fuel. Currently, the jellyfish robot can bend the eight segments that make up its shell at the same time, but the team plans to control each segment individually.
Thus, the robot could be controlled more and could allow move in different directions.
The project has been funded by the Office of Naval Research United States and the idea is that benefits the body of marines and naval fleet in the country.
March 21, 2012
The manta ray is the biggest ray species on earth! But it's not dangerous to divers -- its tail is similar to a stingray tail but doesn't have the stinger. This graceful animal is followed by a number of cleaner fish that feed off any parasites on its body.
These small cichlid fish in Lake Malawi have mastered one of the animal kingdom's more unusual parenting techniques -- their newly hatched young take cover inside the mother's mouth at the first sign of danger.
March 20, 2012
These incredible ocean animals are now listed as vulnerable by the IUCN. With their massive wingspans and graceful movements, they're one of the most beautiful creatures to film in this pristine underwater environment.
March 19, 2012
An ocean mapping expedition has provided new data on the deepest place on Earth, the Mariana Trench (2,500 km long) in the western Pacific Ocean near Guam (also known as Guam)
Using high-tech equipment to inspect the ocean floor, scientists mapped the entire Mariana Trench, about 400,000 square kilometers.
The researchers found four "bridges" spread over the pit, and its deepest point measured with an accuracy greater than the maximum reached before.
The four bridges are raised to a maximum height of 2,500 feet above his bed. Although satellite images have suggested that the pit could be traversed by a mountain range like that, the mapping mission team of James Gardner and Andrew Armstrong, both of the Center for Coastal and Ocean Mapping and Joint Hydrographic Center, University of dependent New Hampshire and NOAA (the National Oceanic and Atmospheric U.S.) confirmed the existence of these four mountain by way of bridges.
These mountain ranges in the pit are the actual result of the progressive collision between the Pacific tectonic plate, which has about 180 million years old, and plate tectonics in the Philippines, which is much younger.
Gardner assumed that the bridges are associated with subduction zones generate earthquakes, such as that caused the March 2011 in Japan
Gardner assumed that the bridges are associated with subduction zones generate earthquakes, such as that caused the March 2011 in Japan. That terrible earthquake occurred within a tectonic zone that usually generates large earthquakes. Japan relies on two major tectonic plates:
To the north, the North American plate. And to the south, the Eurasian plate. Just south of the Eurasian plate, is the small plate of the Philippines. And this, is the massive Pacific plate.
These plates move relative to each other at a rate of about ten centimeters per year, causing tremors regularly or undetectable.
The expedition also obtained the most precise measurement to date of the Challenger Deep, located in the Mariana Trench. It is in the hadal zone, deeper than the abyss. It is an abyss into a pit, and is the deepest point of the pit (and Earth).
The new measurement of this gap indicates that its depth is 10,994 meters, with a margin of error of 40 meters more or less. That depth covers an area larger than for example the height of Mount Everest.
As in ancient works of Jules Verne, four robots tried to emulate the voyage of the Nautilus, the mythical ship of Captain Nemo, and managed to break a world record for distance traveled at sea.
It traveled 20,000 leagues under the sea but 3,200 nautical miles (about 5,926 kilometers) in the Pacific Ocean.
But his goal was not the record, the artifacts are part of a project to collect information on the composition and quality of seawater. Built by the U.S. company Liquid Robotics, is expected to cover four PacX Wave Gliders 9,000 miles nmi (16,668 km) to the end of their journey.
The first stage of its journey from San Francisco to Hawaii, lasted four months. The robots are designed to reach previously inaccessible areas of the ocean and gather information on how acidic the water is gone and the reduction of fish stocks.
The previous Guinness record for the longest distance in the sea by a navigational device was 2,500 miles (4,630 kilometers).
"No doubt that will generate new oceanic discoveries, a new understanding and new applications to group root PacX data," says Edward Lu, head of innovative applications in Liquid Robotics.
The robots left the yacht club of St Francis, in the port of San Francisco on November 17, 2011.
Each robot is comprised of two halves, the top has the shape of a surfboard atrophied and is fastened by a wire to a lower part having a plurality of fins and a keel. To move not use gasoline but use wave energy to move forward.
Solar panels installed on top of numerous sensors robots feed every ten minutes to collect data on salinity, water temperature, climate, fluorescence and dissolved oxygen.
After stopping in Hawaii, the quartet is split. Two robots will continue to Japan, crossing in the process the Mariana Trench, which is the deepest point on Earth. The second pair will swim to Australia, Ecuador past the Earth.
The researchers involved hope the two teams of robots to reach their destinations at the end of 2012 or early 2013.
March 18, 2012
Greenland could melt completely and irreversibly if global warming reaches 1.6 degrees Celsius, according to a study by the University Complutense of Madrid (UCM) and the Institute Potsdam (Germany).
The research, conducted by the Department of Physics of the Earth II of the UCM and scientists of the Potsdam Institute for Research on Impact
Climate (PIK), confirms that the polar cap is more vulnerable to global warming than previously thought.
This research used computer simulations of the ice in this region and its climate, calculating the evolution of the island during previous glacial cycles and the future of ice.
Therefore, this new estimate of the critical temperature threshold for the survival of the island is more reliable than before.
According to the study, now global warming is 0.8 degrees Celsius above the temperature in pre-industrial levels.
So far, previous studies placed the melting of Greenland in a temperature increase of about 3.1 degrees, a calculation that, as this research is "optimistic."
The study also warns that, although the weather returned to its pre-industrial state, melting prevent new growth above the polar cap on the island.
The fish collection of the Smithsonian Institution responds to what can be expected from all the world's largest museums.
The Institution of Washington, home to 19 museums and nine research centers, has no fewer than four million copies of dried fish, with the presence of 70 percent of all species that populate the océnos, seas, rivers and lakes in the world.
One division of the Smithsonian National Museum of Natural History, has undertaken the task of taking photos of high resolution X-ray the specimens to reveal the architecture of fish and compose a catalog of marine biodiversity.
The first step is exposure X-Ray Vision: Fishes Inside Out (X-Ray Vision: fish inside), which will run until August 5 at the headquarters of the museum and then begin a road show for ten major cities of the U.S. until 2015.
The exhibition, which also has a virtual headquarters online and a set of photos on Flickr of the tri-fold download images to a high enough resolution for printing with good quality, consists of forty large fish photos and inspired by the book Icthyo: The Architecture of Fish: X-Rays from the Smithsonian Institution (Chronicle Books, 2008) by Daniel Pauly, Lynne Parenti and Jean-Michel Cousteau.
One of the coordinators of X-Ray Vision: Fishes Inside Out is precisely one of the coaturas the book, Lynne Parenti, who, along with the second Commissioner, photographer Sandra Raredon have worked for years in the Division of Fishes museum, which holds the largest collection in the world: it has about 540,000 lots, ichthyology term used to designate specimens collected in the same place at the same time.
In the exhibition there are photos and rare specimens of special interest. X-rays allow scientists to analyze in detail the fish without having to intervene in the physical specimen.
It is possible, for example, determine if an animal died by ingestion of contaminated food. At the same time, the images provide a "valuable repository of information" on the skeleton of the fish, said Parenti.
Enjoy this collection HERE
March 15, 2012
The water mass of the Earth's oceans has fallen by a quarter to 4,000 million years due to loss of hydrogen to space amounting to saturate the atmosphere with oxygen.
Scientists at the Natural History Museum of Denmark came to this conclusion by comparing the isotopic composition of modern ocean water and "petrified water," mineral serpentine, formed about 3.8 billion years ago in the territory of Greenland current.
The geological mineral serpentine is formed at high temperatures when ocean waters penetrate into cracks and fissures in the crust.
"In the water that covered the planet in the dawn of time, the light isotopes of hydrogen predominated over heavy" notes study author, Emily Pope.
The researchers explain this phenomenon by noting that the hydrogen isotopes formed by light, 'flew' into space.
According to the expert, at one point in the evolutionary history of the planet (which is approximately 2.4 to 2.2 million a few years), the proportion of oxygen in the atmosphere increased so much that it began a process of chemical replacement of water.
The atmospheric oxygen acts as a barrier which react with the atoms "runaway", water molecules are then fall back into the ocean.
In addition, scientists were able to determine that 4,000 million years ago the amount of methane in the Earth's atmosphere was 50-500 times greater than that recorded now.
March 14, 2012
In a Congeso in Vancouver, Canada, it was decided that dolphins and whales deserve the same rights as humans. From now on, are considered non-human. This is a great step to preserve the species and to reach equilibrium on our planet.
Publicado por Persiventana Solutions en 4:18:00 AM
Philippe Cousteau Jnr makes an emotional first visit to the remains of an ambitious underwater village in the Red Sea established by his grandfather, Jacques Cousteau, to discover whether humans could ever live underwater. Fascinating clip from the BBC's Oceans series.
March 13, 2012
March 12, 2012
March 10, 2012
This nice and plump yellow fish a puffer fish, species meleagris Arothron-floating in the waters of the Galapagos (Ecuador) can leave you catatonic, ie made a zombie. At least that's what he says anthropologist and botanist Wade Davies (1953).
This teacher investigated in Haiti using some voodoo ceremonies of tetrodotoxin, a powerful paralyzing poison found in puffer fish tissues, the expensive Japanese fugu gourmets who eat with great pleasure by removing the poisonous parts.
Haitian Davies told of his experiences in the book The Serpent and the Rainbow (The Serpent and the Rainbow, 1985), made into a film in 1988 by director Wes Craven.
¿What is causing such natural fury in the oceans? Everything has to do with fractures in the seafloor.
A displacement of the ground pushes a mass of water which, by its characteristics as a fluid, can not 'react' quickly to readjust to the new space. So, it accumulates, forming something like a big bag of fluid that rises above the level that was the ocean, and moves in all directions, 'looking place.'
The 'tsunami' or tidal waves that reach the coast, are often devastating marine populations. In the eighteenth century, Lisbon was destroyed by the waves and fire, after a strong earthquake. However, these phenomena are not uncommon, although its effects have been felt since they often reach unpopulated areas.
Kiribati, an island nation that will soon disappear, experts from rising sea levels, negotiates to buy a piece of land in Fiji. The Government of this country wants to acquire 20 square kilometers to accommodate most of its population.
For these objectives, the authorities have chosen an area on the island Viti Levu, Fiji's main. Its value was estimated at 10 million.
"Our islands are sinking, and had no choice but to buy the land from neighboring countries," said President Anote Tong kiribatiano.
However, the Fijian authorities have declared that they are prepared for the massive and urgent migration of citizens of the nation's close.
Kiribati, located in central western Pacific Ocean, consists of 33 atolls and coral island and has 103,000 inhabitants. Much of the population has to concentrate on Tarawa, the largest island of the archipelago. But now the island is also at risk of disappearing.
Before the country's authorities thought of creating a giant floating platform to house the citizens, but left parked the idea by large financial costs of the project.
The cause of all the country's problems is climate change, which makes the water rising. So the people of Kiribati has become the first climate refugees affected by global warming.
March 9, 2012
Avatar director James Cameron is preparing for an attempt to be first human being in 50 years to visit the deepest point on Earth - the bottom of the Mariana Trench, seven miles down in the Pacific.
The director will start his attempt 'within weeks' - becoming the first of at least four teams racing to the ocean floor, an icy, alien environment with pressures 1,000 times higher than the surface.
For Jean Michel Cousteau's sea life. The son of Jacques Cousteau has devoted his life to protect our oceans and marine species. The environmentalist has had many achievements over the environment and its protection
The director James Cameron will dive to the deepest marine trench on the planet, located in the Pacific Ocean, nearly 11,000 feet, to investigate the mysteries hidden in the Mariana Trench.
Your journey will be made scientific and manufactured in a mini-submarine for the occasion in Australia.
The director plans to spend 6 hours on the seabed collecting samples and filming issue. "There are millions of things we do not know. I hope we have the opportunity to study the ocean before we destroy it," says the filmmaker.
It plans to bring the action sequel of 'Avatar' "in an underwater world." It may be that after his trip the director wants to prepare for the shoot.
The vehicle called 'Deepsea Challenger' will lead to Cameron in the Mariana Trench was designed and built by himself, his team of engineers and with the help of the magazine 'National Geographic'.
The unit is equipped with cameras and robotic arms and can withstand a pressure of more than 7,000 kilos. Furthermore the vessel reaches a steady speed of 213 meters per minute.
Despite all these modern features of his submarine, Cameron will take longer than 50 minutes to get to the bottom of the Mariana Trench.
The director of 'Titanic' and 'Avatar' will make your adventure-reality being the first man to go down alone at that distance, which has been preparing for over eight years, in late March.
The first manned trip to the Mariana Trench was staged in 1960, when a ship down to the bottom and spent about 20 minutes. Since that time the investigations are performed by automatic vehicles without people on board.