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Posted on Thursday, February 09 - 2012

Researchers now believe volcanic eruptions were responsible for a recent 400-year miniature ice age.Roughly between 1400 and 1800, North America and Europe experienced considerably colder winters in what is now known in history as the "Little Ice Age". Until recently this prolonged drop intemperature had been associated with the Maunder Minimum, a period of low solar activity, but now researchers believe that a series of volcanic eruptions filled the atmosphere with enough ash particles to cause the temperatures to drop during this period.

Iím not a big guy. It doesnít take a tremendous shove to send me crashing to the floor. But what does it take to knock the Earthís climate off balance? In the case of the Little Ice Age, a recent 400-year coldsnap, a new study suggests a few well-timed volcanic eruptions might have done the trick.  

View: Full article |  Source: Ars Technica  

Views : 968

Posted on Thursday, September 03 - 2009

A unique form of water collecting is being used in Peru to help solve the lack of water to be found on the hills surrounding the capital, large fog catching nets are set up that are capable of gathering water from the air withoutthe need for rain. "When people from rural Peru move to Lima, the capital, they're looking for a better life.

But things can be tough. It's hard to find a job in the city.The jobs they can getóbus driver, street vendor, construction workeródon't pay well." View: Full Article | Source: National Geographic

Views : 938

Posted on Thursday, September 18 - 2008

It appeared in the sky for the briefest of moments. A dazzling arc of psychedelic colour reminiscent of the Cheshire Cat"s grin in Lewis Carroll"s Alice in Wonderland. But this is no fantasy or trick of the light, it is known as a circumzenithal arc. Seen here shimmering in the sky over Cambridge in the afternoon sunshine, it is often mistaken for a rainbow hanging upside down. But unlike a rainbow, the sky has to be clear of rain and low level clouds for it to be seen. Relatively rare in Britain, the arc only appears when sunlight shines at a specific angle through a thin veil of wispy clouds at a height of around 20,000 to 25,000 feet. At this altitude the cirrus clouds are madeof ice crystals, the size of grains of salt.

Meteorologists say the clouds must be convex to the sun with the ice particles lined up together in the right direction to refract the light. This results in the sunlight bouncing off the ice crystals high in the atmosphere, sending the light rays back up and bending the sunlight like a glass prism into a spectrum of colour. Renowned astronomer and writer Dr Jacqueline Mitton was lucky enough to capture the optical phenomenon on camera near her home in Cambridge last Sunday. The 60-year-old who has a doctorate in astrophysics from Cambridge University said: "I"ve never seen anything like it before - and I"m 60. "The conditions have to be just right: you need the right sort of ice crystals and the sky has to be clear. "It"s quite surprising for this to occursomewhere like Cambridge, usually it is in places that are colder. "We"re not sure how big an area it was visible over, but it was certainly very impressive." According to Dr Mitton, the colours in the rainbow were intensified by the position of the sun, which was at the optimum spot in the sky of 22 degrees.The vision was made even more dazzling by the presence of "sun dogs" - gleaming spots on a halo around the sun. Dr Mitton added: "It was just an amazing combination of factors that happened at the right time."

View: Full Article | Source: Daily Mail

Views : 924

Posted on Saturday, October 06 - 2007

Next time you purchase white button mushrooms at the grocery store, just remember, they may be cute and bite-size but they have a relative out west that occupies some 2,384 acres (965 hectares) of soil in Oregon"s Blue Mountains. Put another way, this humongous fungus would encompass 1,665 football fields, or nearly four square miles (10 square kilometers) of turf. The discovery of this giant Armillaria ostoyae in 1998 heralded a new record holder for the title of the world"s largest known organism, believed by most to be the 110-foot- (33.5-meter-) long, 200-ton blue whale. Based on its current growth rate, the fungus is estimated to be 2,400 years old but could be as ancient as8,650 years, which would earn it a place among the oldest living organisms as well.

A team of forestry scientists discovered the giant after setting out to map the population of this pathogenic fungus in eastern Oregon. The team paired fungal samples in petri dishes to see if they fused, a sign that they were from the same genetic individual, and used DNA fingerprinting to determine where one individual fungus ended. This one, A. ostoyae, causes Armillaria root disease, which kills swaths of conifers in many parts of the U.S. and Canada. The fungus primarily grows along tree roots via hyphae, fine filaments that mat together and excrete digestive enzymes. But Armillaria has the unique ability to extend rhizomorphs, flat shoestringlike structures, that bridge gaps between food sources and expandthe fungus"s sweeping perimeter ever more. A combination of good genes and a stable environment has allowed this particularly ginormous fungus to continue its creeping existence over the past millennia. "These are very strange organisms to our anthropocentric way of thinking," says biochemist Myron Smith of Carleton University in Ottawa, Ontario. An Armillaria individual consists of a network of hyphae, he explains. "Collectively, this network is called the mycelium and is of an indefinite shape and size.

View: Full Article | Source: Scientific American

Views : 924


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About Paranormal Phenomena.  Archive of Paranormal Unexplained-mysteries of paranormal.  Yahoo Paranormal Phenomena.  Paranormal Phenomena from wikipedia.  Paranormal Phenomena.  Google.com.  Google Paranormal Phenomena.  Yahoo.com.  ODP Paranormal Phenomena.