Tag: reason (page 4 of 25)

UFO-Alien Abduction Still Haunts Travis Walton

Excerpt from huffingtonpost.comClose encounters of the FOURTH kind. That's when a person claims to have been kidnapped by a UFO and its reportedly otherworldly occupants.Of course, there's no tangible evidence that anyone has ever been taken aboard ...

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Nanoparticles In Food and Water Found to Alter Gut Microbiome

Heather Callaghan, ContributorWaking TimesNanotechnology – that is, metal oxide particles* such as titanium dioxide – are increasingly used in the commercial food supply, consumer goods, body care and in water treatment.The gut microbiome is today’s most appealing topic of science because it was previously unacknowledged by the medical community just how important gut health is to the human brain, hormones, immunity, mental health and more. Maintaining a h [...]

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Nuclear Experimentation Year 70 – Playing With Madness

Ethan Indigo Smith, ContributorThe recent “news” on the nuclear situation in Iran brings to light the madhouse of cards on which the postmodern world is built. Or rather, it would bring the madness to light if the major media outlets of the world were not bought up and sold out to the military industrial complex, and therefore completely misinformed on the actions and dangers of the nuclear experimentation industry.The story is not just about [...]

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13 Things Anyone Who Loves A Highly Sensitive Person Should Know

Excerpt from huffingtonpost.com When I was in kindergarten, a boy in my class tossed my favorite book over our elementary school fence. I remember crying profusely, not because I was sad to see it go, but because I was so furious that he was s...

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Hubble’s Other Telescope And The Day It Rocked Our World

The Hooker 100-inch reflecting telescope at the Mount Wilson Observatory, just outside Los Angeles. Edwin Hubble's chair, on an elevating platform, is visible at left. A view from this scope first told Hubble our galaxy isn't the only one.
The Hooker 100-inch reflecting telescope at the Mount Wilson Observatory, just outside Los Angeles. Edwin Hubble's chair, on an elevating platform, is visible at left. A view from this scope first told Hubble our galaxy isn't the only one.
Courtesy of The Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, Calif.


Excerpt from hnpr.org

The Hubble Space Telescope this week celebrates 25 years in Earth's orbit. In that time the telescope has studied distant galaxies, star nurseries, planets in our solar system and planets orbiting other stars.

But, even with all that, you could argue that the astronomer for whom the telescope is named made even more important discoveries — with far less sophisticated equipment.

A young Edwin Hubble at Mount Wilson's 100-inch telescope circa 1922, ready to make history.i
A young Edwin Hubble at Mount Wilson's 100-inch telescope circa 1922, ready to make history.
Edwin Hubble Papers/Courtesy of Huntington Library, San Marino, Calif.


In the 1920s, Edwin Hubble was working with the 100-inch Hooker telescope on Mount Wilson, just outside Los Angeles. At the time, it was the largest telescope in the world.

On a chilly evening, I climb up to the dome of that telescope with operator Nik Arkimovich and ask him to show me where Hubble would sit when he was using the telescope. Arkimovich points to a platform near the top of the telescope frame.

"He's got an eyepiece with crosshairs on it," Arkimovich explains. The telescope has gears and motors that let it track a star as it moves across the sky. "He's got a paddle that allows him to make minor adjustments. And his job is to keep the star in the crosshairs for maybe eight hours."

"It's certainly much, much easier today," says John Mulchaey, acting director of the observatories at Carnegie Institution of Science. "Now we sit in control rooms. The telescopes operate brilliantly on their own, so we don't have to worry about tracking and things like this."

Today, astronomers use digital cameras to catch the light from stars and other celestial objects. In Hubble's day, Mulchaey says, they used glass plates.

"At the focus of the telescope you would put a glass plate that has an emulsion layer on it that is actually sensitive to light," he says. At the end of an observing run, the plates would be developed, much like the film in a camera.

The headquarters of the Carnegie observatories is at the foot of Mount Wilson, in the city of Pasadena. It's where Hubble worked during the day.

A century's worth of plates are stored here in the basement. Mulchaey opens a large steel door and ushers me into a room filled with dozens of file cabinets.

"Why don't we go take a look at Hubble's famous Andromeda plates," Mulchaey suggests.

The plates are famous for a reason: They completely changed our view of the universe. Mulchaey points to a plate mounted on a light stand.

"This is a rare treat for you," he says. "This plate doesn't see the light of day very often."


This glass side of a photographic plate shows where Hubble marked novas. The red VAR! in the upper right corner marks his discovery of the first Cepheid variable star — a star that told him the Andromeda galaxy isn't part of our Milky Way.i
This glass side of a photographic plate shows where Hubble marked novas. The red VAR! in the upper right corner marks his discovery of the first Cepheid variable star — a star that told him the Andromeda galaxy isn't part of our Milky Way.
Courtesy of the Carnegie Observatories 
To the untrained eye, there's nothing terribly remarkable about the plate. But Mulchaey says what it represents is the most important discovery in astronomy since Galileo.

The plate shows the spiral shape of the Andromeda galaxy. Hubble was looking for exploding stars called novas in Andromeda. Hubble marked these on the plate with the letter "N."

"The really interesting thing here," Mulchaey says, "is there's one with the N crossed out in red — and he's changed the N to VAR with an exclamation point."

Hubble had realized that what he was seeing wasn't a nova. VAR stands for a type of star known as a Cepheid variable. It's a kind of star that allows you to make an accurate determination of how far away something is. This Cepheid variable showed that the Andromeda galaxy isn't a part of our galaxy.

At the time, most people thought the Milky Way was it — the only galaxy in existence.

"And what this really shows is that the universe is much, much bigger than anybody realizes," Mulchaey says.
It was another blow to our human conceit that we are the center of the universe.

Hubble went on to use the Mount Wilson telescope to show the universe was expanding, a discovery so astonishing that Hubble had a hard time believing it himself.

If Hubble could make such important discoveries with century-old equipment, it makes you wonder what he might have turned up if he'd had a chance to use the space telescope that bears his name.

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Did natural selection make the Dutch the tallest people on the planet?

Dutch national women's field hockey team



Excerpt from news.sciencemag.org
ByMartin Enserink

AMSTERDAM—Insecure about your height? You may want to avoid this tiny country by the North Sea, whose population has gained an impressive 20 centimeters in the past 150 years and is now officially the tallest on the planet. Scientists chalk up most of that increase to rising wealth, a rich diet, and good health care, but a new study suggests something else is going on as well: The Dutch growth spurt may be an example of human evolution in action.
The study, published online today in the Proceedings of the Royal Society B, shows that tall Dutch men on average have more children than their shorter counterparts, and that more of their children survive. That suggests genes that help make people tall are becoming more frequent among the Dutch, says behavioral biologist and lead author Gert Stulp of the London School of Hygiene & Tropical Medicine.

"This study drives home the message that the human population is still subject to natural selection," says Stephen Stearns, an evolutionary biologist at Yale University who wasn't involved in the study. "It strikes at the core of our understanding of human nature, and how malleable it is." It also confirms what Stearns knows from personal experience about the population in the northern Netherlands, where the study took place: "Boy, they are tall."

For many years, the U.S. population was the tallest in the world. In the 18th century, American men were 5 to 8 centimeters taller than those in the Netherlands. Today, Americans are the fattest, but they lost the race for height to northern Europeans—including Danes, Norwegians, Swedes, and Estonians—sometime in the 20th century.

Just how these peoples became so tall isn't clear, however. Genetics has an important effect on body height: Scientists have found at least 180 genes that influence how tall you become. Each one has only a small effect, but together, they may explain up to 80% of the variation in height within a population. Yet environmental factors play a huge role as well. The children of Japanese immigrants to Hawaii, for instance, grew much taller than their parents. Scientists assume that a diet rich in milk and meat played a major role.

The Dutch have become so much taller in such a short period that scientists chalk most of it up to their changing environment. As the Netherlands developed, it became one of the world's largest producers and consumers of cheese and milk. An increasingly egalitarian distribution of wealth and universal access to health care may also have helped.

Still, scientists wonder whether natural selection has played a role as well. For men, being tall is associated with better health, attractiveness to the opposite sex, a better education, and higher income—all of which could lead to more reproductive success, Stulp says.
Yet studies in the United States don't show this. Stulp's own research among Wisconsinites born between 1937 and 1940, for instance, showed that average-sized men had more children than shorter and taller men, and shorter women had more children than those of average height. Taken together, Stulp says, this suggests natural selection in the United States pulls in the opposite direction of environmental factors like diet, making people shorter instead of taller. That may explain why the growth in average American height has leveled off.

Stulp—who says his towering 2-meter frame did not influence his research interest—wondered if the same was true in his native country. To find out, he and his colleagues turned to a database tracking key life data for almost 100,000 people in the country's three northern provinces. The researchers included only people over 45 who were born in the Netherlands to Dutch-born parents. This way, they had a relatively accurate number of total children per subject (most people stop having children after 45) and they also avoided the effects of immigration.

In the remaining sample of 42,616 people, taller men had more children on average, despite the fact that they had their first child at a higher age. The effect was small—an extra 0.24 children at most for taller men—but highly significant. (Taller men also had a smaller chance of remaining childless, and a higher chance of having a partner.)  The same effect wasn't seen in women, who had the highest reproductive success when they were of average height.  The study suggests this may be because taller women had a smaller chance of finding a mate, while shorter women were at higher risk of losing a child.

Because tall men are likely to pass on the genes that made them tall, the outcome suggests that—in contrast to Americans—the Dutch population is evolving to become taller, Stulp says. "This is not what we've seen in other studies—that's what makes it exciting," says evolutionary biologist Simon Verhulst of the University of Groningen in the Netherlands, who was Stulp's Ph.D. adviser but wasn't involved in the current study. Verhulst points out that the team can't be certain that genes involved in height are actually becoming more frequent, however, as the authors acknowledge.

The study suggests that sexual selection is at work in the Dutch population, Stearns says: Dutch women may prefer taller men because they expect them to have more resources to invest in their children. But there are also other possibilities. It could be that taller men are more resistant to disease, Stearns says, or that they are more likely to divorce and start a second family. "It will be a difficult question to answer.”

Another question is why tall men in Holland are at a reproductive advantage but those in the United States are not. Stulp says he can only speculate. One reason may be that humans often choose a partner who's not much shorter or taller than they are themselves. Because shorter women in the United States have more children, tall men may do worse than those of average height because they're less likely to partner with a short woman.

In the end, Stearns says, the advantage of tall Dutchmen may be only temporary. Often in evolution, natural selection will favor one trend for a number of generations, followed by a stabilization or even a return to the opposite trend. In the United States, selection for height appears to have occurred several centuries ago, leading to taller men, and then it stopped. "Perhaps the Dutch caught up and actually overshot the American men," he says.

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Frustrated magnets showing features of Hall Effect stun Princeton University researchers


Frustrated-Magnets



Excerpt from worldtechtoday.com

A group of researchers at the Princeton University has found that frustrated magnets, inspite of not possessing any magnetic feature at low temperatures, do exhibit features of Hall Effect. ‘Frustrated’ magnets are so called because of their inability of getting a long range magnetic order inspite of a huge exchange between the spins of their elementary particles.

The Hall Effect suggests that when magnetic field is applied to electric current carried by charged particles present in a conductor, it causes magnet to bend to the other side of semi-conductor. They are of great interest in physics and material science. Appreciating that frustrated magnets are capable of producing Hall Effect could hold the key to future advances in computing and the creation of devices such as quantum computers.

“To talk about the Hall Effect for neutral particles is an oxymoron, a crazy idea,” said N. Phuan Ong, one of the authors of the study and Eugene Higgins Professor of Physics at Princeton.

Inspite of that, he together with his colleague, Princeton’s Russell Wellman Moore Professor of Chemistry as well as their graduate students Max Hirschberger and Jason Krizan witnessed this unusual behavior in frustrated magnets.

“All of us were very surprised because we work and play in the classical, non-quantum world. Quantum behavior can seem very strange, and this is one example where something that shouldn’t happen is in reality there. It really exists,” said Ong in a statement.
The researchers wanted to find out the reason underlying “discontent” nature of Hall Effect.

In this particular case, the team led by Ong and Moore studied pyrochlores, a class of magnets ‘which should have orderly “spins” at very low temperature, but have been found to have spins that point in random directions, thus rendering them with magnetic frustration properties.’ They attached small electrodes to both sides of crystals and later passed heat through them using microheaters at extremely low temperatures.

The outcome of the experiment, states Ong, stunned the entire team.

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Study: 70% of People on Antidepressants Don’t Have Depression

Mike Barrett, Natural SocietyIf sales for antidepressants such as Zoloft, Lexapro, or Prozac tell us anything, it’s that depression is sweeping the nation. But a new study questions the validity of most of these sales. The study has found that the majority of individuals on antidepressants – a whopping 69% – do not even meet the criteria for clinical depression. These individuals are likely just experiencing normal sadness and hardships that most of u [...]

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Jupiter May Be Behind The Mysterious ‘Gaping Hole’ In Our Solar System

Excerpt from huffingtonpost.comWhen astronomers began studying other solar systems in the Milky Way galaxy back in the 1990s, they noticed something peculiar: most of these systems have big planets that circle their host stars in tight orbits, a fin...

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Black Holes, the Large Hadron Collider, & Finding Parallel Universes

Excerpt from huffingtonpost.comI am a huge science enthusiast and an unabashed science fiction fan. There are tons of really cool stories out there that fire the imagination and even inspire young people to go into science. (I know they did me.) ...

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How Quantum Physics will change your life and amaze the world!

 Excerpt from educatinghumanity.com "Anyone not shocked by quantum mechanics has not yet understood it."Niels Bohr10 Ways Quantum Physics Will Change the WorldEver want to have a "life do over", teleport, time travel, have your computer wor...

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MAVEN mission finds early surprises in Martian atmosphere

Excerpt from chroniclebulletin.com University of Colorado-led Mars mission has observed two unexpected phenomena in the Martian atmosphere, unveiled Wednesday at the 46th Lunar and Planetary Science Conference in Texas.NASA describes the finds by MA...

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New Development in the Controversy of the ‘Yeti’ Hair Samples — Here’s the Latest



 In this undated photo made available by Britain's Channel 4 television of Oxford University genetics professor Bryan Sykes posing with a prepared DNA sample taken from  hair  from a Himalayan animal.  DNA testing is taking a bite out of the Bigfoot legend. After scientists analyzed more than 30 hair samples reportedly left behind by Bigfoot and other related beasts like Yeti and almasty, they found all of them came from more mundane animals like bears, wolves, cows and raccoons. In 2012, researchers at Oxford University and the Lausanne Museum of Zoology issued an open call asking museums, scientists and Bigfoot aficionados to share any samples they thought were from the mythical ape-like creatures. (AP/ Channel 4)
In this undated photo made available by Britain’s Channel 4 television of Oxford University genetics professor Bryan Sykes posing with a prepared DNA sample taken from hair from a Himalayan animal.



Excerpt from theblaze.com

A new study that re-analyzed so-called “yeti” hair samples from previous research that had identified them as belonging to an “anomalous ursid” might have disappointing news for those who thought the findings last year meant a “bigfoot” of sorts was still out there. Yet, the author of the original findings stands by his claims.

Research published in the journal ZooKeys found that the hair samples said to be from Central Asia and the Himalayas belong to a known species in those regions.

“We have concluded that there is no reason to believe that the two samples came from anything other than brown bears,” the authors wrote in the study abstract.


After scientists analyzed more than 30 hair samples reportedly left behind by Bigfoot and other related beasts like Yeti, they found all of them came from more mundane animals like bears, wolves, cows and raccoons. Two samples were said to have been from an “anomalous ursid,” but new analysis suggests that the samples were from brown bears. (AP/Channel 4)
These authors used mitochondrial 12S rRNA sequencing on the same samples that Oxford University’s Bryan Sykes and his fellow authors used in their study published last year. The issue Eliecer Guiterrez, a postdoctoral researcher at the Smithsonian’s National Museum of Natural History, and his colleagues found with Sykes research was that his team used a fragment of DNA.

“We made this discovery that basically that fragment of DNA is not informative to tell apart two species of bears: the brown bear and [modern-day Alaskan] polar bear,” Gutierrez told Live Science.

At the time of his 2014 study, Sykes et al. wrote “[...] it is important to bear in mind that absence of evidence is not evidence of absence and this survey cannot refute the existence of anomalous primates, neither has it found any evidence in support. […] The techniques described here put an end to decades of ambiguity about species identification of anomalous primate samples and set a rigorous standard against which to judge any future claims.”

And Sykes still holds his ground, despite the more recent findings.
“What mattered most to us was that these two hairs were definitely not from unknown primates,” Sykes told Live Science in light of the recent research. “The explanation by Gutierrez and [Ronald] Pine might be right, or it might not be.”

To NBC News, Sykes said that Gutierrez’ findings are “entirely statistical.”

“The only way forward, as I have repeatedly said, is to find a living bear that matches the 12S RNA and study fresh material from it,” he continued. “Which involves getting off your butt, not an activity I usually associate with desk-bound molecular taxonomists.”

Daniel Loxton, an editor for Junior Skeptic, which is produced by the Skeptics Society, told Live Science that people will continue to believe in and seek out yetis, bigfoots and the like, because they are”fascinated by monsters, and they’re fascinated by mysteries in general.”

Blake Smith, in a blog post for the Skeptics Society laid out the whole saga involving Sykes research and the more recent analysis by Guiterrez. Smith ultimately concluded that he’s “still convinced that Yeti and Bigfoot are not to be found in the forests and mountains of the Earth, but in the minds of people.”

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