Friday, September 5, 2014

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BBC News
Spitting fish 'adjust for distance' when shooting
BBC News
The jets of water that archer fish use to shoot down prey are "tuned" to arrive with maximum impact over a range of distances, according to a study. High-speed cameras were used to analyse fishes' spitting performance in detail. As they create each jet, theᅠ...



BBC News
Newly discovered dinosaur, Dreadnoughtus, takes title of largest terrestrial animal
Washington Post
Scientists have discovered the fossilized remains of a new long-necked, long-tailed dinosaur that has taken the crown for largest terrestrial animal with a body mass that can be accurately determined. Measurements of bones from its hind leg and forelegᅠ...



Sydney Morning Herald
UN chief tries to kick-start sagging enthusiasm for climate deal
Reuters
LONDON/WASHINGTON, Sept 4 (Reuters) - United Nations Secretary General Ban Ki-moon this month hopes to reinvigorate the years-long effort to forge a global climate deal, even as concerns grow over whether the final pact will be rigorous enough toᅠ..



New York Times
Argentine Dinosaur Was an Estimated 130000 Pounds, and Still Growing
New York Times
PHILADELPHIA ラ Eighty-five feet long, 30 feet tall, 130,000 pounds and still growing when it died, a newly described dinosaur is among the largest land animals that ever lived ラ so big its discoverers are calling it the Dreadnoughtus. Its skeleton, unearthedᅠ...



Fox News
NASA flying first zero-gravity 3D printer into space
CNET
Printers in space! Astronauts on the space station may not have to wait for the next resupply mission if they can print out needed parts right onboard. by Amanda Kooser ᄋ @akooser; 4 September 2014, 3:19 am AEST. comments. 0. facebook. twitter. linkedin



USA TODAY
Two women skirt attack in Mass. by great white shark
USA TODAY
Two kayakers just missed being attacked by a great white shark off the coast of Plymouth, Mass., according to various reports. What experts believe was a great white shark took a bite out of one of two kayaks that two women were riding as they took pictures ofᅠ..



Brisbane Times
New Deep-Sea Species Found Off Australian Coast May 'Reshape the Tree of Life'
Mashable
SYDNEY ラ Scientists say two new animal species discovered off the Australian coast in 1986 have the potential to "reshape the tree of life." A study in scientific journal PLOS ONE describes the mushroom-shaped organisms for the first time since theirᅠ...



ABC News
Stunning NASA Video Shows a Solar Eruption
ABC News
Newly-released video offers a stunning look at a solar eruption. The footage, released Wednesday, was recorded by NASA's Solar Terrestrial Relations Observatory ヨ known as STEREO ヨ on Aug. 24. In the video, material can be seen being ejected from theᅠ...



New York Daily News
'Warning' issued as lava flows within a mile of homes on Hawaii's Big Island
New York Daily News
HONOLULU ラ Residents in a rural, isolated region of Hawaii's Big Island still reeling from a recent tropical storm turned their attention to a potential new disaster Thursday as scientists warned that a lava flow from a nearby volcano had moved to within a mileᅠ...



Houston Chronicle
Methane Emissions Strategy Due in Coming Weeks, EPA Administrator Says
Natural Gas Intelligence
The Environmental Protection Agency (EPA) this fall will release a strategy to deal with methane emissions from natural gas and oil pipelines and wells that may include both regulatory approaches and recommended voluntary steps,according to EPAᅠ...

Wednesday, September 3, 2014

While geophysics failed to provide evidence that Stonehenge featured a complete outer circle or sarsens, I short hose may have just done it.

In a recent piece in Antiquity, a quarterly review of archeology, the study of parch marks in the grass on the site suggest that there were likely two huge sarsen stones that have gone missing but would have completed the outer circle on the grounds of the famed Druid creation.


Stonehenge: Groundskeeper noted grass failing to grow

Owing to a hose that was unable to water certain areas of the site due to its length, a groundskeeper noticed grass failing to grow as strongly as in other areas notified archaeologists.
Evidence that the outer stone circle at Stonehenge was once complete has been found, because a hosepipe used to water the site was not long enough.
Parch marks in the grass, in an area that had not been watered, have revealed places where two “missing” huge sarsen stones may once have stood.
The marks were spotted by an English Heritage steward who alerted archaeologists to their existence.

Stonehenge: Susan Greaney speaks to the marks’ importance

Susan Greaney, of English heritage believes this evidence that was first discover in July 2014, shows that there are indeed missing stones from the south-west quadrant of the outer circle.
“If these stone holes actually held upright stones then we’ve got a complete circle,” she said.
“It’s really significant, and it shows us just how much we still have to learn about Stonehenge.
“A lot of people assume we’ve excavated the entire site and everything we’re ever going to know about the monument is known.

“But actually there’s quite a lot we still don’t know and there’s quite a lot that can be discovered just through non-excavation methods.”
With ISIS rampaging across Syria and Iraq and Russia threatening the sovereignty of Ukraine, it’s easy to forget that many spend their lives trying to understand the significance of the monument that brings hundreds of thousands to visit each year.
Greaney went on to note that a hi-res survey of the area that was finished a couple of years back failed to show what was found by the “gardener.”
“It’s great that people who know the site really well and look at it every day were able to spot these parch marks and recognise them for what they were,” she added.
“We maintain the grass with watering when it’s very dry in the summer, but our hosepipe doesn’t reach to the other side of the stone circle.
“If we’d had a longer hosepipe we might not have been able to see them.”

Stonehenge: The man who saw the parch marks speaks

The person in question was Tim Daw who had a bit to say about his “discovery.”
“I was standing on the public path looking at the grass near the stones and thinking that we needed to find a longer hosepipe to get the parched patches to green up.”
“A sudden lightbulb moment in my head, and I remembered that the marks were where archaeologists had looked without success for signs that there had been stone holes, and that parch marks can signify them.
“I called my colleague over and he saw them and realised their possible significance as well. Not being archaeologists we called in the professionals to evaluate them.
“I am still amazed and very pleased that simply really looking at something, that tens of thousands of people had unwittingly seen, can reveal secrets that sophisticated machinery can’t.”

Earth's New Address Is...a Tiny Part Of The Laniakea Galactic Supercluster

You have a new galactic address; astronomers have determined that our own Milky Way galaxy is part of a newly identified enormous supercluster of galaxies - dubbed "Laniakea," which means "immense heaven" in Hawaiian.
This discovery broadens the boundaries of our galactic neighborhood and establishes previously unrecognized linkages among various galaxy clusters in the local Universe. How big are are talking? The Milky Way galaxy alone has 100 billion stars. We think. And then there are 1012 galaxies. So your address is now a lot bigger. Instead of being Earth, Sol, Orion arm, Milky Way, Local Group and Virgo cluster, you can now add Laniakea before Universe.
Superclusters are among the largest structures in the known Universe. They are made up of groups, like our own Local Group, that contain dozens of galaxies, and massive clusters that contain hundreds of galaxies, all interconnected in a web of filaments. Though these structures are interconnected, they have poorly defined boundaries.

A slice of the Laniakea Supercluster in the supergalactic equatorial plane -- an imaginary plane containing many of the most massive clusters in this structure. The colors represent density within this slice, with red for high densities and blue for voids -- areas with relatively little matter. Individual galaxies are shown as white dots. Velocity flow streams within the region gravitationally dominated by Laniakea are shown in white, while dark blue flow lines are away from the Laniakea local basin of attraction. The orange contour encloses the outer limits of these streams, a diameter of about 160 Mpc. This region contains the mass of about 100 million billion suns. Credit: SDvision interactive visualization software by DP at CEA/Saclay, France.
To better refine cosmic mapmaking, the researchers are proposing a new way to evaluate these large-scale galaxy structures by examining their impact on the motions of galaxies. A galaxy between structures will be caught in a gravitational tug-of-war in which the balance of the gravitational forces from the surrounding large-scale structures determines the galaxy's motion.

"We have finally established the contours that define the supercluster of galaxies we can call home," said lead researcher R. Brent Tully, an astronomer at the University of Hawaii at Manoa. "This is not unlike finding out for the first time that your hometown is actually part of much larger country that borders other nations."
By using the GBT and other radio telescopes to map the velocities of galaxies throughout our local Universe, the team was able to define the region of space where each supercluster dominates. "Green Bank Telescope observations have played a significant role in the research leading to this new understanding of the limits and relationships among a number of superclusters," said Tully.
The Milky Way resides in the outskirts of one such supercluster, whose extent has for the first time been carefully mapped using these new techniques. This so-called Laniakea Supercluster is 500 million light-years in diameter and contains the mass of one hundred million billion Suns spread across 100,000 galaxies.
This study also clarifies the role of the Great Attractor, a gravitational focal point in intergalactic space that influences the motion of our Local Group of galaxies and other galaxy clusters.
Within the boundaries of the Laniakea Supercluster, galaxy motions are directed inward, in the same way that water streams follow descending paths toward a valley. The Great Attractor region is a large flat bottom gravitational valley with a sphere of attraction that extends across the Laniakea Supercluster.
The name Laniakea was suggested by Nawa'a Napoleon, an associate professor of Hawaiian Language and chair of the Department of Languages, Linguistics, and Literature at Kapiolani Community College, a part of the University of Hawaii system. The name honors Polynesian navigators who used knowledge of the heavens to voyage across the immensity of the Pacific Ocean.

Breathtaking Views of Earth From Above

Breathtaking Views of Earth From Above
Astronaut Reid Wiseman posted this photo to Twitter on Sept. 2, 2014 from the International Space Station with the caption, "My favorite views from #space just past #sunrise over the ocean." Reid Wiseman/NASA ..

Reflections on the 50th anniversary of the 1964 Wilderness Act

This past summer, during one of the hottest periods of the long heat wave, I escaped Boise for a weekend to the mountains outside McCall. A friend has a cabin there and she suggested that we leave our phones, computers, and cares behind and spend a few days in the woods.

I love the outdoors, whether it’s the managed and semi-manicured Kathryn Albertson Park (where I saw a doe and two fawns the last time I visited that urban oasis) or the wilder, more rugged Sawtooths. So, when my friend came knocking with the opportunity to immerse myself in the lovely Payette National Forest, I quickly opened the door and walked out of the city and into the wild.
One of our hikes took us through stands of towering Ponderosa Pines, whispering and swaying with a gentle breeze. The pine-pitch scent was intoxicating. After about 10 minutes, the forest thinned and we stepped into one of the most beautiful places I’ve ever seen. It was a broad meadow, lushly green with thick patches of yellow, white and purple flowers. A small, clear stream meandered through, sheltered by a few copses of trees and bridged by a fallen log here and there. My friend and I sat on one of these natural benches, gazing into the gold-flecked water and listening to the calls of birds and the lonely scree of an eagle soaring through the blue skies.
To those who have never experienced the Idaho wilderness, such language may sound hyperbolic. But for those of us who have been blessed with the chance to visit many such places in our beautiful state, my description likely seems understated. My friend and I spent several hours in the meadow, ambling across its verdant expanse, picking our way through the marshy verges of the stream and trying (though not always succeeding) to avoid stepping in the numerous piles of manure. Yes — cattle manure. The meadow was notactually in the wilderness, but it was on its edge.
The meadow is remote, high up in the mountains. But despite its location and abundance of wildlife (cattle excepted), the meadow cannot technically be called wilderness. That designation is reserved for areas “where the earth and its community are untrammeled by man, where man himself is a visitor who does not remain,” and where roads, motorized vehicles and other trappings of modern life are not allowed.
This definition of wilderness is remarkably new and hotly debated. It gained legal status on September 3, 1964, when President Lyndon B. Johnson signed the Wilderness Act, setting aside over nine million acres of the public domain and protecting it from mining, logging and agricultural use. In the 50 years since, America’s wild lands have increased to over 100 million acres — a stunning victory in the eyes of some, a terrible waste of resources in the view of others.
Disagreements over wilderness, and over how it should be defined and managed, have a long and storied past in America. Historian Roderick Nash analyzed the complicated relationship Americans have had with wild nature in his now-classic book,Wilderness and the American Mind (1967). There he traced the evolution of wilderness from a fearful, dangerous place in need of conquest to an Edenic, threatened remnant of pristine nature requiring protection.
Nash’s history begins in Europe, with what he called the Old World roots of the wilderness concept, imported to the North American continent by Puritan settlers who viewed nature as antithetical to civilization and human progress. Later generations characterized nature as a storehouse of resources ripe for harvest, abundant without end. Both of these perceptions led to over-exploitation of forests, soils, and wildlife populations.
By the early 19th century, Nash suggested, Americans began to question the efficacy and morality of such approaches to the non-human world. He pointed to iconic figures such as Henry David Thoreau (1817-1862), John Muir (1838-1914) and Aldo Leopold (1887-1948) to illustrate new ideas of wilderness based on the notion that, even more important than the raw materials it embodies, nature acts as a spiritual and physical antidote to industrialized, over-civilized life.
These two competing views of wilderness — antithesis and antidote — are at the root of the Wilderness Act. The Act states:
In order to assure that an increasing population, accompanied by expanding settlement and growing mechanization, does not occupy and modify all areas within the United States and its possessions, leaving no lands designated for preservation and protection in their natural condition, it is hereby declared to be the policy of the Congress to secure for the American people of present and future generations the benefits of an enduring resource of wilderness.
The Act’s language clearly aligns with the idea that wild nature provides both tangible and intangible benefits far beyond any material gains that might be had from harvesting its resources, even as it made special exceptions for certain uses contrary to its basic premise. Grazing, where it had already been established in National Forest areas, could continue in wilderness areas managed by the U.S. Forest Service under the oversight of the Secretary of Agriculture.
New and existing mining operations were allowed in wilderness areas through December 31, 1983, as long as they did not alter the “wilderness character” of the area. Motorboats and aircraft could be used in areas where they already were prior to September 3, 1964, and anywhere in the system if they were necessary to assess and combat threats from insects, fire, or diseases, “subject to such conditions as the Secretary deems desirable.” Where the intent of the Act presumes wilderness is an antidote, its exceptions reveal a continued tradition of seeing wild nature as an obstacle to civilization’s progress.
That it took nearly 10 years for wilderness protection to move from bill to Act reveals the deep-seated ambivalence Americans have toward nature. The bill, authored by Wilderness Society Executive Director Howard Zahniser, first came before Congress in 1956, but its origins go back another 20 years. Robert Marshall, a forester with the US Forest Service and founder of the Wilderness Society, began in the early 1930s a correspondence with Secretary of the Interior Harold L. Ickes recommending that roads be prevented from carving up the undeveloped lands under Ickes’s management.
Michael Frome, Battle for the WildernessAccording to journalist Michael Frome, these messages “appear to be the first steps that ultimately led to the Wilderness Act.” Twenty years later, after the nation recovered from the Great Depression and the Second World War, Howard Zahniser took up Marshall’s call. He wrote several articles and opinion pieces on the need for wilderness protection beginning in 1951, but it was a speech he delivered in early 1955 calling for legal protection of wild areas that inspired the bill that became the Wilderness Act.

Democratic Sen. Hubert Humphrey of Minnesota and Republican Rep. John Saylor of Pennsylvania first introduced the bill in 1956, calling for the protection of wild areas already within the jurisdiction of several federal agencies, including areas within the national parks and monuments, national forests, national wildlife refuges, and on Indian reservations. In 1964,Idaho Sen. Frank Church was the floor sponsor of the bill that would finally become the Wilderness Act.
Congress conducted 18 hearings on the bill between mid 1957 and May 1964. Much of the opposition to its passage came from natural resources industries, not because they did not support the idea of wilderness, but because they considered the amount of lands proposed for designation as too extensive and in the wrong places. Initially the Forest and Park Services also opposed the bill because they believed they would lose autonomy in managing their lands in the ways they deemed best for their mandates. See Fome’s Battle for the Wilderrness.Eisenhower’s administration did not favor the bill, thus it took the election of John F. Kennedy, who made its passage part of his 1960 presidential campaign, to grease the legislative gears.
Nevertheless, it took another four years for the bill’s language to be agreed upon by both houses. Zahniser’s original text, which incorporated Marshall’s definition of wilderness, underwent important changes, including the extension for mining and a requirement that new wilderness areas be instituted through congressional authority rather than executive proclamation, but the basic premise remained.
In a remarkable show of bipartisanship, Congress passed the bill with a vote of 73-12 in the Senate and 373-1 in the House. Johnson signed the bill into law while sitting in the White House Rose Garden — not exactly a wilderness, but nevertheless symbolic of the nation’s affinity for and dedication to the preservation of nature.
Fifty years later, debate over the Act continues. Most opposition, again largely from industry, stems from concerns that the United States is needlessly limiting the development of resources that could enhance the nation’s economy and security. As in the Act’s infancy, those who disagree with the management and designation of wilderness areas aren’t uniformly against the idea of wilderness, but instead dislike the extent, location, and restrictions of it. However, some disapproval stems from unexpected places.
Twenty years ago, 30 years after passage of the Act, historian and environmentalist William Cronon suggested that there are few places on Earth that exist in a truly wild state and that wilderness as an idea has done more to stymie environmental progress than it has to promote it. Cronon was not arguing that nature does not exist, but that by separating ourselves from it, as the Wilderness Act explicitly does, we create a false dualism that in some ways allows us to abdicate our responsibilities toward the built and natural environments that surround us more immediately. By separating ourselves from wilderness – an ostensibly pure form of nature — we obscure, in Cronon’s words, “what an ethical, sustainable, honorable human place in nature might actually look like.” 
Cronon noted that wilderness has been used to dispossess indigenous peoples the world over, including Native Americans in the 19th century and Indian peasants in the 20th. He also argued that wilderness tends to promote the majestic over the humble, the iconic over the mundane, thus preserving landscapes deemed sublime and not those that appear less inspiring. Thoreau’s original is “In Wildness is the preservation of the World.” Wilderness is often mistakenly substituted for wild­ness, though in this case, it is intentional. Henry David Thoreau, “Walking.” First published in Atlantic Monthly (June 1862). I appreciate Cronon’s warning and I try to live my life mindful of my impact on the places where I work and live, but in the end, I think he’s wrong. Wilderness is not a distracting illusion; it is, to slightly misquote Thoreau, “the preservation of the world,” quite literally. The existence of wilderness areas helps to mitigate biodiversity loss and ecosystem degradation and provides space for recreation, reflection and research. This is what the authors of the Wilderness Act recognized 50 years ago and what supporters of it continue to argue today. I am a fan of wilderness, not only for what it provides me as a physical entity — a place where I can escape my daily obligations and reset my mental clock — but I am also a fan of its legal protection, although I acknowledge that even as it provides important benefits, setting aside millions of acres of land has social and economic consequences.

I also understand that wilderness is as much a concept — a creation of the mind — as it is an identifiable place. Nevertheless, I believe, and I think history bears me out, that we need wilderness to remind us that life transcends the daily grind and that we, as individuals and as communities, are connected to something larger than ourselves. Whether we visit wild places, or have only the opportunity to enjoy pictures taken by those who have, wilderness’s existence encourages us to contemplate our amazing, beautiful planet and to consider that we are part of a whole, even when we feel quite apart from it all.
Being on the edge of wilderness is, in my opinion, better than having no wilderness at all.
Lisa Brady is professor of history at Boise State, chair of the Idaho Humanities Council, editor of Environmental History and author of War upon the Land: Military Strategy and the Transformation of Southern Landscapes During the American Civil War. Brady graduated from the University of New Mexico, holds masters' from University of Sydney (Australia) and Montana State and a PhD in American and Environmental History from the University of Kansas.

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