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Something Just Went BEZERK in the Gulf of Mexico. The US Navy just sunk a French Submarine
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[quote:White Widow 918092:MV8xMTEzNTg2XzE4Nzc4NDkyX0Y2MUU1NDg=] I'll just continue on the bacteria..... [b]Deep-Sea Bacteria Form Avatar-Style Electrochemical Networks[/b] According to findings that could have been pulled from a deep-sea sequel to Avatar, [b]bacteria appear to conduct electrical currents across the ocean floor[/b], driving linked chemical reactions at relatively vast distances. ... The original focus of Nielsen’s team wasn’t seafloor conductivity, but an especially interesting species of sulfur bacteria found on the floor of Aarhus Bay. To help quantify their chemical activity, the researchers kept a few beakers of seawater and sulfur bacteria-free sediment for comparison. After those experiments ended, the beakers were almost forgotten. Then, a few weeks later, the researchers noticed strange patterns of activity. Changing oxygen levels in water above the top sediment layer were almost immediately followed by chemical fluctuations several layers down. The distance was so great, and the response time so quick, that usual methods of chemical transport — molecular diffusion, or a slow drift from high to low concentration — couldn’t explain it. At first, the researchers were stumped. [b]Then they realized the process made sense if bacteria in the top and bottom layers were linked. Anything that affected oxygen-processing bacteria up top would also affect the sulfide-eating microbes below. It would explain the apparent connection; and an electrical linkage would explain the speed.[/b] It would also boggle the mind. ... In recent years, however, scientists have found species of microbes with outer membranes covered by electron-transporting enzymes, or studded with conductive, micrometer-scale filaments. These are used in driving experimental microbial fuel cells, and are known to be found in the Aarhus Bay mud. Those sediments also contain trace amounts of pyrite, an electrically conductive mineral. The top sediment layer also had a low concentration of hydrogen ions, something that could only be explained through an electrochemical reaction, with electrons conducted from a distance, said Nielsen. Nealson called the findings “astonishing,” and said they “may be relevant to energy transfer and electron flow through many different environments.” They could eventually applied to bacteria-based schemes for bioremediation, carbon sequestration and energy production. http://www.wired.com/wiredscience/2010/02/electric-ocean-bacteria/ [i]bacteria appear to conduct electrical currents across the ocean floor ????[/i] Remember the Subs have (had?) navigational problems....and then again there is the word "pyrite, an electrically conductive mineral". ...getting closer??? The story is also covered here: http://www.the-scientist.com/blog/display/57173/ and adds at the end the following: One potential issue, noted Fons Stams from Wageningen University in the Netherlands, who didn't participate in the research, is that the authors didn't directly measure electrical conductance, but instead measured pH -- which depends on the level of free electrons -- as a stand-in. De Beers agreed, noting that "pH is influenced by many things." For changes seen over such a distance -- about 1 centimeter -- and at such a speed, however, conductance "is the only possible explanation," said de Beer. De Beer, who researches sediments on the ocean floor, envisions taking advantage of this phenomenon to produce energy in-situ during deep sea dives. [b]The electrical current in sediment may not be enough to fuel something as large as a submersible, he said, but it could fuel a light bulb or more importantly, deep sea monitoring equipment. [/b] good to know... :tomato: [/quote]
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My girl friend has a D.E.D link on her laptop from the French Embassy. (She works at the embassy)
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