Tag: thousand (page 2 of 5)

The Mystery of the Blonde-haired Tarim Mummies of China



Excerpt from 
historicmysteries.com
By Shelly Barclay

The Tarim Mummies or the Mummies of Xinjiang are mysterious mummies that were discovered in the foothills of the Tian Shan Mountains in China. What is so mysterious about them is that some of them date back to roughly 4,000 years ago, a time when it was thought that there were no westerners in that area. However, there must have been, because the Tarim mummies are Caucasian. Not only that, but they wear similar garments and share similar burial practices of some European countries.



The first of the Tarim mummies was discovered by Wang Binghua in 1978. Wang had been searching for ancient settlements along in the northeast of Xinjiang when a local man directed him to Quizilchoqa. It was there that Wang uncovered the first mysterious Tarim mummy. Over time, these mummies were discovered in four different sites in the Tarim Basin area.  More than one hundred of them have been uncovered so far.


The Tarim mummies are unusually well preserved. This is interesting because the people who buried them did not practice mummification. The sites where these mummies have been found, lie on the edges of the Taklamakan Desert. When these ancient people buried their dead, the hot climate and rocky soil helped to keep the deceased’s body preserved, though it should have decomposed hundreds of years ago. Some of these corpses rival the Ancient Egyptian mummies in their extraordinary preserved state.
Another very strange thing about the Tarim mummies is the attire in which they were buried. If the fact that some of them had blond hair and blue eyes hadn’t given away the fact that they were westerners that had settled in what is now Xinjiang, the clothing they wore when they were buried would have. 


One of the mummies, the Yingpan Man, was six feet six inches tall and wore a red tunic with gold embroidery. He also wore a gold foil burial mask. This burial clothing is far more indicative of western influence than of Eastern. Other Tarim mummies have also been found wearing decidedly western clothing. One of the oddest bits of clothing found any of these mummies are the flat-brimmed pointy “witch hats” that were discovered on the “Witches of Subeshi.”

Researchers have been able to decipher a number of things about the people who buried these mummies since their discovery. This is largely due to the work of Dr. Victor Mair, the man who brought the Tarim mummies into the public eye. It is known that the ancient people rode horses, used chariots and had at least some medical knowledge. One of the Tarim mummies was found with evidence of a surgical wound on its neck, which had been sutured at some point.

Since the discovery of the caucasian-featured Tarim mummies in Xinjiang, scientists have been trying to uncover links between the ancient people who buried these mummies and modern citizens of the area. Thus far, several links have been discovered and hypothesized, but it is difficult to make them public or credible because of political unrest in the area. Nonetheless, there are many people who are certain that the Tarim mummies represent the first Caucasians to settle in the area. If this is fact, then it will mean that western man settled in the area roughly one thousand years before scientists had previously thought they did.

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New data that fundamental physics constants underlie life-enabling universe

Excerpt from spacedaily.com For nearly half a century, theoretical physicists have made a series of discoveries that certain constants in fundamental physics seem extraordinarily fine-tuned to allow for the emergence of a life-enabling universe.Thi...

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Science Increasingly Makes the Case for God



Excerpt from  wsj.com
By Eric Metaxas


The odds of life existing on another planet grow ever longer. Intelligent design, anyone?


In 1966 Time magazine ran a cover story asking: Is God Dead? Many have accepted the cultural narrative that he’s obsolete—that as science progresses, there is less need for a “God” to explain the universe. Yet it turns out that the rumors of God’s death were premature. More amazing is that the relatively recent case for his existence comes from a surprising place—science itself.
Here’s the story: The same year Time featured the now-famous headline, the astronomer Carl Sagan announced that there were two important criteria for a planet to support life: The right kind of star, and a planet the right distance from that star. Given the roughly octillion—1 followed by 27 zeros—planets in the universe, there should have been about septillion—1 followed by 24 zeros—planets capable of supporting life.
With such spectacular odds, the Search for Extraterrestrial Intelligence, a large, expensive collection of private and publicly funded projects launched in the 1960s, was sure to turn up something soon. Scientists listened with a vast radio telescopic network for signals that resembled coded intelligence and were not merely random. But as years passed, the silence from the rest of the universe was deafening. Congress defunded SETI in 1993, but the search continues with private funds. As of 2014, researches have discovered precisely bubkis—0 followed by nothing.
What happened? As our knowledge of the universe increased, it became clear that there were far more factors necessary for life than Sagan supposed. His two parameters grew to 10 and then 20 and then 50, and so the number of potentially life-supporting planets decreased accordingly. The number dropped to a few thousand planets and kept on plummeting.
Even SETI proponents acknowledged the problem. Peter Schenkel wrote in a 2006 piece for Skeptical Inquirer magazine: “In light of new findings and insights, it seems appropriate to put excessive euphoria to rest . . . . We should quietly admit that the early estimates . . . may no longer be tenable.”
As factors continued to be discovered, the number of possible planets hit zero, and kept going. In other words, the odds turned against any planet in the universe supporting life, including this one. Probability said that even we shouldn’t be here.
Today there are more than 200 known parameters necessary for a planet to support life—every single one of which must be perfectly met, or the whole thing falls apart. Without a massive planet like Jupiter nearby, whose gravity will draw away asteroids, a thousand times as many would hit Earth’s surface. The odds against life in the universe are simply astonishing.
Yet here we are, not only existing, but talking about existing. What can account for it? Can every one of those many parameters have been perfect by accident? At what point is it fair to admit that science suggests that we cannot be the result of random forces? Doesn’t assuming that an intelligence created these perfect conditions require far less faith than believing that a life-sustaining Earth just happened to beat the inconceivable odds to come into being?
There’s more. The fine-tuning necessary for life to exist on a planet is nothing compared with the fine-tuning required for the universe to exist at all. For example, astrophysicists now know that the values of the four fundamental forces—gravity, the electromagnetic force, and the “strong” and “weak” nuclear forces—were determined less than one millionth of a second after the big bang. Alter any one value and the universe could not exist. For instance, if the ratio between the nuclear strong force and the electromagnetic force had been off by the tiniest fraction of the tiniest fraction—by even one part in 100,000,000,000,000,000—then no stars could have ever formed at all. Feel free to gulp.
Multiply that single parameter by all the other necessary conditions, and the odds against the universe existing are so heart-stoppingly astronomical that the notion that it all “just happened” defies common sense. It would be like tossing a coin and having it come up heads 10 quintillion times in a row. Really?
Fred Hoyle, the astronomer who coined the term “big bang,” said that his atheism was “greatly shaken” at these developments. He later wrote that “a common-sense interpretation of the facts suggests that a super-intellect has monkeyed with the physics, as well as with chemistry and biology . . . . The numbers one calculates from the facts seem to me so overwhelming as to put this conclusion almost beyond question.”
Theoretical physicist Paul Davies has said that “the appearance of design is overwhelming” and Oxford professor Dr. John Lennox has said “the more we get to know about our universe, the more the hypothesis that there is a Creator . . . gains in credibility as the best explanation of why we are here.”
The greatest miracle of all time, without any close seconds, is the universe. It is the miracle of all miracles, one that ineluctably points with the combined brightness of every star to something—or Someone—beyond itself.

Mr. Metaxas is the author, most recently, of “Miracles: What They Are, Why They Happen, and How They Can Change Your Life” ( Dutton Adult, 2014).

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Must-See Geminid Meteor Shower Peaks This Weekend: An Observer’s Guide



2014 Geminid Meteor Shower Sky Map


Excerpt from
space.com

The spectacular Geminid Meteor shower hits peak activity this weekend. Though competing with some unfortunate moonlight, the shower still should make for a must-see astronomical event.

While moonlight will somewhat hinder this year's Geminid meteor shower, intrepid observers with good weather and low light pollution should still be able to catch a good meteor show Saturday (Dec. 13) night.

"If you have not seen a mighty Geminid fireball arcing gracefully across an expanse of sky, then you have not seen a meteor," note astronomers David Levy and Stephen Edberg. 


Even if you can't see the meteor display from your part of the world, you can watch them online. The online Slooh Community Observatory will host a live webacst of the Geminid meteor display on Saturday night beginning at 8 p.m. EST (0100 Dec. 14 GMT).You can also watch the Slooh webcast directly:http://live.slooh.com/. NASA meteor expert Bill Cooke will also host a live Geminids webchat on Saturday night from 11 p.m. to 3 a.m. EST (0400 to 0800 GMT), as well as a live webcast.
You can watch the webcasts of the Geminid shower live on Space.com, starting at 8 p.m. EST, courtesy of Slooh and NASA. The Italy-based Virtual Telescope Project will also host a Geminds webcast, beginning at 9 p.m. EST (0200 GMT).

Although the bright moon will be high in the sky by 11:30 p.m. local time Saturday (Dec. 13) (during the shower's peak), skywatchers can still catch a potentially incredible show before the moon creeps above the horizon, washing out the sky. Stargazers might be able to see an average of one or two Geminid meteors per minute Saturday before the moon rises.

By around 9 p.m., the constellation Gemini — the part of the sky where the meteors seem to emanate from — will have climbed more than one-third of the way up from the horizon. Meteor sightings should begin to really increase noticeably thereafter. By around 2 a.m., the last-quarter moon will be low in the east-southeast, but Gemini will stand high overhead. So you might still see a good number of meteors in spite of the moon's presence.

A brilliant shower

The Geminids are, for those willing to brave the chill of a December night, a very fine winter shower, and usually the most satisfying of all the annual showers. They can even surpass the brilliant August Perseid meteor shower.

Studies of past displays show that the Geminid shower is rich both in slow, bright, graceful meteors and fireballs, as well as in faint meteors, with relatively fewer objects of medium brightness. Many Geminids appear yellowish in hue; some even appear to form jagged or divided paths.     

These meteors travel at a medium speed and appear to emanate, specifically, from near the bright star Castor, in the constellation of Gemini, the Twins, hence the name "Geminid." In apparent size, that's less than half the width of the moon. As such, this is a rather sharply defined radiant as most meteor showers go. It suggests the stream is "young," perhaps only several thousand years old.

Generally speaking, depending on your location, Castor begins to come up above the east-northeast horizon right around the time evening twilight comes to an end. As the Gemini constellation begins to climb the eastern sky just after darkness falls, there is a fair chance of perhaps catching sight of some "Earth-grazing" meteors. Earthgrazers are long, bright shooting stars that streak overhead from a point near to even just below the horizon. Such meteors are so distinctive because they follow long paths nearly parallel to the Earth's atmosphere. 

Because Geminid meteoroids are several times denser than the comet dust that supply most meteor showers and because of the relatively slow speed with which the Geminids encounter Earth (22 miles or 35 kilometers per second), these meteors appear to linger a bit longer in view than most. As compared to an Orionid or Leonid meteor that can whiz across your line of sight in less than a second, a Geminid meteor moves only about half as fast. Personally, their movement reminds me of field mice scooting from one part of the sky to another.

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Massive Light Show Over Russian Urals Stuns Locals, Scientists





Excerpt
rt.com

An extraordinary bright orange flash has lit up the sky in Russia’s Sverdlovsk region in the Urals. While locals captured the massive ‘blast’ on numerous cameras, both scientists and emergency services still struggle to explain the unusual event.

Dark evening skies in the town of Rezh in Sverdlovsk region near Russia's Ekaterinburg turned bright orange for some ten seconds on November 14, with the event being caught on several cameras by the locals.

A driver filmed the massive flash with his dashcam, later posting the video on YouTube, with more people commenting they’ve seen it too. Teenagers in the town of Rezh also filmed the phenomenon with a mobile phone.

Theories of what might have caused the “blast” appeared both on social and traditional media, with a new meteorite or military exercise in the region being among the top guesses. Regional emergency services said no accidents in connection with the event had been recorded. No sound of explosion has been reported either.

According to E1.ru, the emergency officials suggested the military were behind the flash, as they might have had a scheduled explosive ordnance disposal procedure. The city administration has also said such ammunition disposal might have taken place, while the military themselves denied they were behind the mystery. 

A fireball caused by an asteroid’s collision with the Earth's atmosphere is among other presumed reasons for the burning sky.


Another astronoma, Vadim Krushinsky, doubted his colleague's theory, saying the color of the flash does not support the asteroid speculation. The shade of light depends on the body’s temperature, and flashes caused by bolides are usually whiter, he explained to Ekburg.tv. The observatory engineer suggested his own theory, saying a space rocket launch might have been the cause.



Click to zoom

A path of launches from the Plesetsk cosmodrome lies above the area, Krushinsky said. But, according to Russian Federal Space Agency's website, the latest launch from the Plesetsk cosmodrome happened on October 29, with the next one planned for November 24.

People in the Urals witnessed a space ‘invasion’ event a year and a half ago, when the famous Chelyabinsk meteorite hit the region. A massive fireball explosion in February 2013 injured over a thousand people with shattered glass mostly, and damaged many residential and industrial buildings.

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Are we sending aliens the right messages?


(Nasa)


bbc.com

Artist Carrie Paterson has long dreamed of beaming messages far out to the emptiness of space. Except her messages would have an extra dimension – smell.

By broadcasting formulae of aromatic chemicals, she says, aliens could reconstruct all sorts of whiffs that help to define life on Earth: animal blood and faeces, sweet floral and citrus scents or benzene to show our global dependence on the car. This way intelligent life forms on distant planets who may not see or hear as we do, says Paterson, could explore us through smell, one of the most primitive and ubiquitous senses of all.
(Wikipedia)
It is nearly 40 years since the Arecibo facility sent messages out into space (Wikipedia)

Her idea is only the latest in a list of attempts to hail intelligent life outside of the Solar System. Forty years ago this month, the Arecibo radio telescope in Puerto Rico sent an iconic picture message into space – and we’ve arguably been broadcasting to aliens ever since we invented TV and radio.

However in recent years, astronomers, artists, linguists and anthropologists have been converging on the idea that creating comprehensible messages for aliens is much harder than it seems. This week, Paterson and others discussed the difficulties of talking to our cosmic neighbours at a conference called Communicating Across the Cosmos, held by Seti (Search for Extraterrestrial Intelligence). It seems our traditional ways of communicating through pictures and language may well be unintelligible – or worse, be catastrophically misconstrued. So how should we be talking to ET?

Lost in translation?

We have always wanted to send messages about humanity beyond the planet. According to Albert Harrison, a space psychologist and author of Starstruck: Cosmic Visions in Science, Religion and Folklore, the first serious designs for contacting alien life appeared two centuries ago, though they never got off the ground.


In the 1800s, mathematician Carl Gauss proposed cutting down lines of trees in a densely forested area and replanting the strips with wheat or rye, Harrison wrote in his book. “The contrasting colours would form a giant triangle and three squares known as a Pythagoras figure which could be seen from the Moon or even Mars.” Not long after, the astronomer Joseph von Littrow proposed creating huge water-filled channels topped with kerosene. “Igniting them at night showed geometric patterns such as triangles that Martians would interpret as a sign of intelligence, not nature.”

But in the 20th Century, we began to broadcast in earnest. The message sent by Arecibo hoped to make first contact on its 21,000 year journey to the edge of the Milky Way. The sketches it contained, made from just 1,679 digital bits, look cute to us today, very much of the ‘Pong’ video game generation.  Just before then, Nasa’s Pioneer 10 and 11 space probes each carried a metal calling card bolted onto their frame with symbols and drawings on the plaque, showing a naked man and woman.

Yet it’s possible that these kinds of message may turn out to be incomprehensible to aliens; they might find it as cryptic as we find Stone Age etchings.

Antique tech

“Linear drawings of a male and a female homo sapiens are legible to contemporary humans,” says Marek Kultys, a London-based science communications designer. ”But the interceptors of Pioneer 10 could well assume we are made of several separate body parts (i.e. faces, hair and the man’s chest drawn as a separate closed shapes) and our body surface is home for long worm-like beings (the single lines defining knees, abdomens or collarbones.).”

Man-made tech may also be an issue. The most basic requirement for understanding Voyager’s Golden Record, launched 35 years ago and now way out beyond Pluto, is a record player. Aliens able to play it at 16 and 2/3 revolutions a minute will hear audio greetings in 55 world languages, including a message of ‘Peace and Friendship’ from former United Nations Secretary General Kurt Waldheim. But how many Earthlings today have record players, let alone extraterrestrials?
(Nasa)
Our sights and sounds of Earth might be unintelligible to an alien audience (Nasa)



Time capsule

Inevitably such messages become outdated too, like time capsules. Consider the case of the Oglethorpe Atlanta Crypt of Civilization – a time capsule sealed on Earth in 1940, complete with a dry martini and a poster of Gone With the Wind. It was intended as a snapshot of 20th Century life for future humans, not aliens, but like an intergalactic message, may only give a limited picture to future generations. When, in 61,000 years, the Oglethorpe time capsule is opened, would Gone With The Wind have stood the test of time?


(Nasa)
This message was taken into the stars by Pioneer - but we have no idea if aliens would be able to understand it (Nasa)

Kultys argues that all these factors should be taken into account when we calculate the likelihood of communicating with intelligent life. The astronomer Frank Drake’s famous equation allows anyone to calculate how many alien species are, based on likely values of seven different factors. At a UK Royal Society meeting in 2010 Drake estimated there are roughly 10,000 detectable civilisations in the galaxy. Yet Kultys points out that we should also factor in how many aliens are using the same channel of communications as us, are as willing to contact us as we are them, whose language we hope to learn, and who are physically similar to us.

Another barrier we might consider is the long distance nature of trans-cosmos communication. It means that many years ‒ even a thousand ‒ could pass between sending a message and receiving a reply. Paterson sees romance in that. “Our hope for communication with another intelligent civilisation has a melancholic aspect to it. 
We are on an island in a vast, dark space. Imagine if communication… became like an exchange of perfumed love letters with the quiet agony of expectation... Will we meet? Will we be as the other imagined? Will the other be able to understand us?”

Ready for an answer?

Anthropologist John Traphagan of the University of Texas in Austin has been asking the same question, though his view is more cautious. "When it comes to ET, you'll get a signal of some kind; not much information and very long periods between ‘Hi, how are you?’ and whatever comes back. We may just shrug our shoulders and say 'This is boring’, and soon forget about it or, if the time lag wasn't too long, we might use the minimal information we get from our slow-speed conversation to invent what we think they're like and invent a kind concept of what they're after.”

(20th Century Fox)
The aliens in Independence Day (1996) did not come in peace (20th Century Fox)
While we have been sending out messages, we have not been preparing the planet for what happens when we get an interstellar return call. First contact could cause global panic. We might assume those answering are bent on galactic domination or, perhaps less likely, that they are peaceful when in fact they’re nasty.

Consider how easy it is to mess up human-to-human communications; I got Traphagan’s first name wrong when I e-mailed him for this article. An apology within minutes cleared up the confusion, yet if he had been an alien anthropologist on some distant planet it would have taken much longer to fix. He later confessed: "I could have thought this is a snooty English journalist and our conversation might never have happened."

Even if Earth’s interstellar messaging committees weeded out the typos, cultural gaffes are always a possibility. These can only be avoided by understanding the alien’s culture – something that’s not easy to do, especially when you’ve never met those you’re communicating with.

Rosy picture

So, what is the best way to communicate? This is still up for grabs – perhaps it’s via smell, or some other technique we haven’t discovered yet. Clearly, creating a message that is timeless, free of cultural bias and universally comprehensible would be no mean feat.


But for starters, being honest about who we are is important if we want to have an extra-terrestrial dialogue lasting centuries, says Douglas Vakoch, director of interstellar message composition at Seti. (Otherwise, intelligent civilisations who’ve decoded our radio and TV signals might smell a rat.)

(Nasa)
The golden discs aboard the Voyager spacecraft require aliens to understand how to play a record (Nasa)

“Let's not try to hide our shortcomings,” says Vakoch. “The message we should send to another world is straightforward: We are a young civilisation, in the throes of our technological adolescence. We're facing a lot of problems here on Earth, and we're not even sure that we'll be around as a species when their reply comes in. But in spite of all of these challenges, we humans also have hope – especially hope in ourselves."


Yet ultimately what matters, says Paterson, is that they stop and consider the beings who sent them a message; the people who wanted to say: “Here are some important things. Here’s our DNA, here is some maths and universal physics. And here is our longing and desire to say “I’m like you, but I’m different.”

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Amazon, Google, IBM & Microsoft Want to Store Your Genome


Excerpt from  technologyreview.com


By Antonio Regalado

 For $25 a year, Google will keep a copy of any genome in the cloud.

Google is approaching hospitals and universities with a new pitch. Have genomes? Store them with us.

The search giant’s first product for the DNA age is Google Genomics, a cloud computing service that it launched last March but went mostly unnoticed amid a barrage of high profile R&D announcements from Google...

Google Genomics could prove more significant than any of these moonshots. Connecting and comparing genomes by the thousands, and soon by the millions, is what’s going to propel medical discoveries for the next decade. The question of who will store the data is already a point of growing competition between Amazon, Google, IBM, and Microsoft.

Google began work on Google Genomics 18 months ago, meeting with scientists and building an interface, or API, that lets them move DNA data into its server farms and do experiments there using the same database technology that indexes the Web and tracks billions of Internet users.

This flow of data is smaller than what is routinely handled by large Internet companies (over two months, Broad will produce the equivalent of what gets uploaded to YouTube in one day) but it exceeds anything biologists have dealt with. That’s now prompting a wide effort to store and access data at central locations, often commercial ones. The National Cancer Institute said last month that it would pay $19 million to move copies of the 2.6 petabyte Cancer Genome Atlas into the cloud. Copies of the data, from several thousand cancer patients, will reside both at Google Genomics and in Amazon’s data centers.

The idea is to create “cancer genome clouds” where scientists can share information and quickly run virtual experiments as easily as a Web search, says Sheila Reynolds, a research scientist at the Institute for Systems Biology in Seattle. “Not everyone has the ability to download a petabyte of data, or has the computing power to work on it,” she says.

Also speeding the move of DNA data to the cloud has been a yearlong price war between Google and Amazon. Google says it now charges about $25 a year to store a genome, and more to do computations on it. Scientific raw data representing a single person’s genome is about 100 gigabytes in size, although a polished version of a person’s genetic code is far smaller, less than a gigabyte. That would cost only $0.25 cents a year.


The bigger point, he says, is that medicine will soon rely on a kind of global Internet-of-DNA which doctors will be able to search. “Our bird’s eye view is that if I were to get lung cancer in the future, doctors are going to sequence my genome and my tumor’s genome, and then query them against a database of 50 million other genomes,” he says. “The result will be ‘Hey, here’s the drug that will work best for you.’ ”


At Google, Glazer says he began working on Google Genomics as it became clear that biology was going to move from “artisanal to factory-scale data production.” He started by teaching himself genetics, taking an online class, Introduction to Biology, taught by Broad’s chief, Eric Lander. He also got his genome sequenced and put it on Google’s cloud.

Glazer wouldn’t say how large Google Genomics is or how many customers it has now, but at least 3,500 genomes from public projects are already stored on Google’s servers. He also says there’s no link, as of yet, between Google’s cloud and its more speculative efforts in health care, like the company Google started this year, called Calico, to investigate how to extend human lifespans. “What connects them is just a growing realization that technology can advance the state of the art in life sciences,” says Glazer.

Datta says some Stanford scientists have started using a Google database system, BigQuery, that Glazer’s team made compatible with genome data. It was developed to analyze large databases of spam, web documents, or of consumer purchases. But it can also quickly perform the very large experiments comparing thousands, or tens of thousands, of people’s genomes that researchers want to try. “Sometimes they want to do crazy things, and you need scale to do that,” says Datta. “It can handle the scale genetics can bring, so it’s the right technology for a new problem.”

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Researchers take second look at near-death experiences



Excerpt from

news4sanantonio.com

By Jeff Abell
News 4 San Antonio

BALTIMORE - Those who have skirted death often talk about their 'near-death' experiences. 

At times, the stories sound like a scene from the twilight zone. But what some researchers discount as hallucinations, others are beginning to take a closer look.  Some scientists now seem convinced the stories may actually be real.

Ellyn Dye is a professional writer who didn't quite learn the lessons of life until she discovered death.

"There really is more than who we human beings are," says Dye.

She made her life-changing discovery on a drive to the supermarket 30 years ago, not far from her Silver Spring home. Another motorist veered into her path sending Dye crashing.

"I had enough time to think, ‘oh my God he's.’  I felt no impact. I felt nothing.  And the next thing I knew I was looking down from the top of my car," she says.

Dye was clinically dead and viewing her own crash scene from a distance. It was an out of body experience that sounded all too familiar.

"The tunnel of light showed up. You can see this bright, bright, light, but the most important part is you can feel it. I saw, almost immediately, saw all of my relatives who have passed. You know how happy they were to see me and how proud of me they are," Dye says.

Her experience confirmed what she had forever believed, that life exists even after death.

"And I really do think that the worst thing we can be is afraid," she adds.

"I never had a question whether it was real or not. It was real for me," says Jack Dunlavey. Five years ago, Dunlavey was knocking on death’s door. Not long after pulling his tractor out of the barn, it gave way to the soggy ground.

"Four thousand pounds is what the tractor guy told me," he says.

All 4,000 pounds overturned and landed on Dunlavey's back.

"Instantly, I knew I was going to die," he says.

What happened next is similar to what happened to Dye. A bright tunnel appeared and so did familiar faces.

"But when I walked in and floated into that, all my concerns were gone.  As I was in there I also saw my parents coming toward me," Dunlavey says.

Scientists have long believed that these out of body experiences were simply hallucinations.  But after studying the stories of more than 2,000 heart attack survivors, some researchers now seem convinced those "near death" experiences may actually be real. The study, which is the largest to date, found that more than 40 percent of survivors describe having some form of awareness long after they were declared dead.

"In general, they described seeing lights, getting peaceful, seeing relatives almost as if they were walking them to where they were going," says Dr. Sam Parnia.

But one New York surgeon says, "No, there's no life after death."

He adds that there is a scientific explanation for those near death experiences. For as long as five minutes after the heart stops neurons, he says, are still pumping images through the brain.

"So when we talk about that bright light, that's happening in your occipital lobe," the surgeon says.

"Some people can't comprehend that something like that can happen, but it’s getting more common now so people are starting to listen," says Dunlavey.

For Dye, the research bolsters what she's known for years.

"It doesn't convince me more that my experience was real because it was very real. I can say I saw all my relatives who have died.  They were alive and more alive than they ever were on planet earth."

It took death for Dye to learn to live. She now leads a Maryland support group for those who have had near death experiences.

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Researchers show Earth’s magnetic reversal occurs faster than previously thought



Excerpt from dailycal.org
By Suhauna Hussain | Staff

A study by researchers from UC Berkeley, Columbia University, Italy and France shows that the most recent reversal of Earth’s magnetic field occurred in fewer than 100 years, which is much more rapidly than previously believed.

A magnetic field reversal is when the Earth’s magnetic poles are switched – a phenomenon that has occurred many times in history. Magnetic fields usually remain at a certain intensity but weaken significantly before reversing.

Previously, researchers believed reversals occurred over thousands of years. The discovery that reversals can happen in such a short time is significant because it can help scientists further understand how magnetic reversals behave.

In the most recent magnetic reversal, the Earth’s field reversed a few times over several thousand years before it finally “snapped,” making its final reversal into its current orientation in fewer than 100 years, Renne said.

Researchers don’t have clear-enough records of other reversals to know whether this behavior is normal, he added.

Bruce Buffett, campus earth and planetary sciences chair and professor, unaffiliated with the project, questioned the study’s definition of a reversal, arguing that a complete magnetic reversal takes much longer.

According to Buffett, it’s true that the field can switch direction within 100 years, but when that rapid switch occurs, the field is still relatively weak. It actually takes thousands of years for the field to regain its normal intensity in its reversed direction, he said.
“I can tell you that a reversal can’t (take) place in a 100 years, but something that goes from very weak to very weak in another direction can take place in that amount of time,” Buffett said.

Yet the study was “remarkable” for obtaining such a detailed and accurate record, he said.

Moving forward, the researchers will continue the study and further analyze sediment samples.

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Think You Could Live on Mars? Think Again



Excerpt from
time.com

A new analysis of Mars One's plans to colonize the Red Planet finds that the explorers would begin dying within 68 days of touching down


Hear that? That’s the sound of 200,000 reservations being reconsidered. Two hundred thousand is the announced number of intrepid folks who signed up last year for the chance to be among the first Earthlings to colonize Mars, with flights beginning as early as 2024. The catch: the trips will be one way, as in no return ticket, as in farewell friends, family, charbroiled steaks and vodka martinis, to say nothing of such everyday luxuries as modern hospitals and, you know, breathable air.
But the settlers in Jamestown weren’t exactly volunteering for a weekend in Aspen either, and in both cases, the compensations—being the first people on a distant shore—seemed attractive enough. Now, however, the Mars plan seems to have run into a teensy snag. According to a new analysis by a team of grad students at MIT, the new arrivals would begin dying within just 68 days of touching down.


An artist concept of NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) mission. Launched in November 2013, the mission will explore the Red Planet’s upper atmosphere, ionosphere and interactions with the sun and solar wind.
The United Launch Alliance Atlas V rocket with NASA’s Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft launches from the Cape Canaveral Air Force Station Space Launch Complex 41, Monday, Nov. 18, 2013, Cape Canaveral, Florida. NASA’s Mars-bound spacecraft, the Mars Atmosphere and Volatile EvolutioN, or MAVEN, is the first spacecraft devoted to exploring and understanding the Martian upper atmosphere. Photo Credit: (NASA/Bill Ingalls)
NASA's MAVEN spacecraft, inside a payload fairing, is hoisted to the top of a United Launch Alliance Atlas V rocket at the Vertical Integration Facility at Cape Canaveral Air Force Station's Space Launch Complex 41 on Nov. 8, 2013.
Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, engineers and technicians perform a spin test of the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft. The operation is designed to verify that MAVEN is properly balanced as it spins during the initial mission activities.
Lockheed Martin/NASA

The organizers of the burn-your-boats expedition is a group called Mars One, headed by Bas Lansdorp, a Dutch entrepreneur and mechanical engineer. As Lansdorp sees things, habitat modules and other hardware would be sent to the Red Planet in advance of any astronauts, who would arrive in four-person crews at two-year intervals—when Mars and Earth make their closest approach, which holds the outbound journey to a brief (relatively speaking) eight months. The crew-selection process would be part of (yes) a sponsored reality show, which would ensure a steady flow of cash—and since the settlers would grow their own food onsite, there would be little to carry along with them. All that would keep the overall cost of the project to a shoestring (relative again) $6 billion.

So what could go wrong? That’s what the four MIT students set out to find out, and the short answer is: a lot.

The biggest problem, the students discovered, concerns that business of breathable air. One of the things that’s always made Earth such a niftily habitable place to live is that what animals exhale, plants inhale, and vice versa. Since the Martian astronauts and their crops would be living and respiring in the same enclosed habitats, a perfect closed loop should result in which we provide them all the carbon dioxide they need and they return the favor with oxygen.

Only it doesn’t, the MIT students found. The problem begins with the lettuce and the wheat, both of which are considered essential crops. As lettuce matures, peaking about 30 days after planting, it pushes the 02 level past what’s known as .3 molar fractions, which, whatever it means, doesn’t sound terribly dangerous — except it’s also the point at which the threat of fire rises to unacceptable levels. That risk begins to tail off as the crop is harvested and eaten, but it explodes upward again, far past the .3 level, at 68 days when the far gassier wheat matures.

A simple answer would be simply to vent a little of the excess O2 out, which actually could work, except the venting apparatus is not able to distinguish one gas from another. That means that nitrogen—which would, as on Earth, make up the majority of the astronauts’ atmosphere—would be lost too. That, in turn, would lower the internal pressure to unsurvivable levels—and that’s what gets your 68-day doomsday clock ticking.

There is some question too about whether the hardware that Mars One is counting on would even be ready for prime time. The mission planners make much of the fact that a lot of what they’re planning to use on Mars has already been proven aboard the International Space Station (ISS), which is true enough. But that hardware is built to operate in microgravity—effectively zero g—while Mars’s gravity is nearly 40% of Earth’s. So a mechanical component that would weigh 10 lbs. on Earth can be designed with little concern about certain kinds of wear since it would weigh 0 lbs. in orbit. But on Mars it would be 4 lbs., and that can make all the difference.

“The introduction of a partial gravity environment,” the grad students write, “will inevitably lead to different [environmental] technologies.”

For that and other reasons, technical breakdowns are a certainty. The need for replacement parts is factored into Mars One’s plans, but probably not in the way that they should be. According to the MIT team, over the course of 130 months, spare parts alone would gobble up 62% of the payload space on resupply missions, making it harder to get such essentials as seeds, clothes and medicine—to say nothing of other crew members—launched on schedule.

Then too, there is the question of habitat crowding. It’s easy to keep people alive if you feed them, say, a single calorie-dense food product every day. But energy bars forever means quickly losing your marbles, which is why Mars One plans for a variety of crops—just not a big enough variety. “Given that the crop selection will significantly influence the wellbeing of the crew for the entirety of their lives after reaching Mars,” the authors write, “we opt for crop variety over minimizing growth area.”

Then there is the question of cost—there’s not a space program in history whose initial price tag wasn’t badly lowballed—to say nothing of maintaining that biennial launch schedule, to say nothing of the cabin fever that could soon enough set the settlers at one another’s throats. Jamestown may not have been a picnic, but when things got to be too much you could always go for a walk by the creek.

No creeks here, nor much of anything else either. Human beings may indeed colonize Mars one day, and it’s a very worthy goal. But as with any other kind of travel, the best part of going is often coming home.

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