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Wednesday, 14 January 2015

Cow jumps from moving truck in Russia


It's not every day you see a cow perform a daredevil stunt like this one.

Shocked motorists on a high-speed carriageway in Russia captured the hilarious footage of the bovine animal making its great escape from the travelling lorry.


The curious creature sticks it head out of the back of the truck before taking a tentative step onto the icy road below.


After skidding on its knees for a few metres, the cow emerges from the stunt unhurt and promptly stands up to take in its new surroundings.


While it remains unknown whether the animal was being shipped off to the abattoir, this cow wasn't taking any risks as it made a break for it.


Luckily, the vehicle behind the truck had plenty of time to stop, meaning the creature was safe and sound, despite his udderly dramatic stunt.


[embedded content]




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Delta Air Lines flight forced to return to LAX for emergency landing after pilots lose control of plane




The Delta Air Lines Boeing 757, right, sits parked after making an emergency landing at Los Angeles International Airport



The pilots of a Delta Air Lines flight from Los Angeles to Minneapolis declared an emergency soon after takeoff Tuesday when they began having trouble controlling their Boeing 757.

Flight 2116 safely returned to Los Angeles International Airport after circling off the Southern California coast for about an hour to burn fuel. There were no reports of injuries among the 152 people on board.


One passenger, Nathan Smith, revealed that everyone on the plane was 'unnerved' and that some were in 'tears.'


'It was almost like we were on the water, on a boat,' Smith told KTLA.


'The higher we got, it kind of got worse.'


Within minutes of takeoff, the crew calmly declared an emergency and an unidentified person in the cockpit explained, 'we got a yaw problem, and we're having a little trouble controlling the airplane,' according to recording on LiveATC.net, an independent website that monitors and posts communications between pilots and air traffic controllers.


Yaw refers to the left-or-right movement of an aircraft's nose, and controlling it is important to avoid not just the feeling of sliding but also a more dangerous problem called a Dutch roll - an exaggerated tail-wagging, rocking motion that can lead to a total loss of control.


Pilots said that it's not unusual for a crew to declare an emergency and cut short a flight, but the Delta pilot's comment that he didn't have full command of the plane made Tuesday's incident more serious.


'Any time you have a flight-control problem in a commercial airplane, it's an emergency,' said John Nance, a former military and airline pilot.





A look at the plane's route as it tried to burn of fuel before landing



The plane took off at 8.39am, and the tracking website FlightAware showed it making arcing turns about 5,000 feet above the Pacific Ocean before returning. During that period, the crew told air traffic controllers they wanted time to speak with Delta officials.

'If it was a super emergency, he wouldn't burn down fuel. He'd just come down and bang it on the ground,' said Michael Barr, a former pilot and aviation safety instructor at the University of Southern California.


But if the pilots could maintain control, the prudent course was to burn fuel to get to a proper landing weight and return to 'get it back to maintenance and figure out what it was before taking it any further,' Barr said.


Upon touching down shortly after 9.30am, the plane rolled back to a terminal, followed across the airfield by emergency vehicles.


In an emailed statement, Delta called the problem 'a potential systems issue' without elaborating.


A spokesman, Morgan Durrant, said it was 'too soon' to get into more detail and that the airline was focused on rebooking customers on other flights.


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How well can information be stored over time?

Plot of the transmissivity

© Mancini, et al. CC-BY-3.0

Plot of the transmissivity, η, of information as it travels through spacetime, shown as a function of the momentum, k, with which the universe expands.



Information can never be stored perfectly. Whether on a CD, a hard disk drive, or a piece of papyrus, technological imperfections create noise that limits the preservation of information over time. But even if you had a perfect storage medium with zero imperfections, there would still be fundamental limits placed on information storage due to the laws of physics that govern the evolution of the universe ever since the Big Bang. But what exactly these fundamental limits are is still unclear.

In a new paper published in the , Stefano Mancini and Roberto Pierini at the University of Camerino and INFN in Italy, along with Mark M. Wilde at Louisiana State University, have investigated these fundamental limits to preserving information on a literally cosmic scale.


Specifically, they wanted to know how well a given amount of information can be preserved from the beginning to the end of time, with limitations only from physical laws and not technological imperfections in the specific storage medium.


"The motivation that has led us to consider this goal, though it may appear unrealistic, was the discovery of ultimate limitations in information processing," Mancini told Phys.org. "Above all, we want to try to understand if and how spacetime dynamics affects information storage."


To do this, they modelled information transmission over a "channel" that is essentially spacetime itself, described by the Robertson-Walker metric. Their model combines the theories of general relativity and quantum information by considering the quantum state of matter (specifically, spin-1/2 particles) as the universe expands. In this model, the evolution of the universe creates noise which, in the context of quantum communication, acts like an amplitude damping channel.


Mark M. Wilde from Lousiana State University talks about information preservation from the beginning to the end of time in this video abstract. The paper was published in the


The physicists' main result is that, the faster the universe expands, the less well the information can be preserved. To deal with this "problem" of the expanding universe on information preservation, the researchers investigated strategies for preserving as much information as possible over billions of years of expansion. Doing this involved using a communication-theoretic paradigm in which information is encoded at the beginning of the universe's evolution and decoded at the end of its evolution. This model allowed the scientists to develop a strategy for preserving both classical and quantum information, which use different storage techniques and so require a trade-off.


So to answer the original question of how much information can be stored from the beginning to the end of time, the results suggest "not very much."


"I would say that, for most cases (except when particles are at rest or moving very fast), the impact of spacetime dynamics would be large, so little information can be preserved," Mancini said. "However, a quantitative answer could be provided by using a more accurate evolution model of the universe. This is left as work for the future."


There are a number of other interesting future directions that this work could take. For instance, implementing correction measures at various times during the evolution of the universe could reduce the degradation of the stored information. More speculatively, future research might focus on entanglement-assisted communication in Einstein-Rosen bridges - better known as wormholes - and even entanglement between different eras in the universe. This research could have implications for understanding dark energy and the evolution of the universe overall.


More information: Stefano Mancini, et al. "Preserving information from the beginning to the end of time in a Robertson-Walker spacetime." . DOI


Journal reference: New Journal of Physics


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Tuesday, 13 January 2015

Who is celebrating the NYPD work slowdown the most? Black New Yorkers - 'This is a taste of what it's like to be white.'

NYPD work slowdown

For the second consecutive week, New York City police have virtually ceased writing tickets and arresting people for many nonviolent crimes, on the order of a 90 percent drop from a year earlier. After perceived slights by Mayor Bill de Blasio, civil protests against police brutality, and the murder of two officers by a deranged gunman, the New York Police Department is fighting back by not doing its job. Or rather, police appear to be using their resentment as an organizing incentive to skip certain non-essential cop duties.

The police seem to be trying to teach a lesson to a city they feel doesn't adequately appreciate them. For New Yorkers who value fair policing, though, the slowdown is an occasion to celebrate.


Many of the offenses police have tacitly declared legal are considered quality-of-life (QOL) infractions. Those follow the broken window strategy, a policing philosophy that has been widely discredited since its heyday in Rudy Giuliani's mayoralty. QOL meets small transgressions with arrests and fines - a way, it's thought, to nip more substantial crimes in the bud. Perhaps because QOL policing grants cops near-unlimited discretion in determining whom to sanction, its penalties fall disproportionately on people of color. Between 2001 and 2013, the found, more than 80 percent of the 7.3 million people penalized for these infractions were black or Latino. The vast majority of African Americans and Latinos in all walks of life feel like they're treated unfairly by law enforcement, and consider police discrimination the most endemic form of societal mistreatment.It's unfair, brutal, racist, and financially burdensome, and it often follows such small transgressions as jaywalking, skipping $2.50 subway fares or merely irritating police.


To many of us from these communities, the past two weeks have amounted to a vacation from fear, surveillance and punishment. Maybe this is what it feels like to not be prejudged and seen as suspicious law breakers. Maybe this is a small taste of what it feels like to be white.


Here is my story of two cities. Ten years ago, when I first moved to New York City, some friends invited me out to an afternoon concert in Central Park. This was an event filled with upper-middle-class white people enjoying music and culture - and an occasion, it turned out, to flaunt the city's open-container laws. I was naïve enough to be surprised at how many of my friends were publicly drinking wine and liquor from badly disguised canisters, cups, and flasks. Eventually the party staggered out of the park and on to the Upper West Side, down the streets, and into the subways. Riders greeted us with smiles and laughter, pedestrians gave us you-crazy-kids nudges. Our portable debauchery snaked all the way home to our dorm rooms.


A few months later I was walking around the Lower East Side, on my way to meet friends. I decided to stop into a bodega and get a beer, which I sipped out of a brown paper bag as I blithely wandered near a housing project. A police officer materialized, and when he checked my ID, he seemed surprised that I didn't live in the housing project. He wrote me a ticket me for the open container and let me go. I didn't think much of it. I was, in fact, breaking the law. But what a contrast from my earlier infractions, in a white space with white friends.


When I went to court for my ticket, I noticed that almost everyone there answering summonses and paying fines was black or Latino. The QOL penalties, it seemed to me, were a backdoor tax for the city, and the people feeding that coffer overwhelmingly looked like me. Most stared ahead and mumbled agreements to the judge so they could leave. Some pleaded for leniency or extra time to pay, citing lack of income. Sixty dollars here, $200 there. These amounts would have momentarily inconvenienced Upper West Siders. In that courtroom, those figures were pushing people to tears.


Poor people bear the brunt of QOL fines. Not lower-income folks or working class types - no, the actual underclass, the groups balkanized into narrow living corridors in the city, offered slim opportunities, and suspended in a state of financial anxiety. Unless they are in front of a judge, they're invisible to policymakers. But QOL fines can wreck them, and for what? Recently I lived with a roommate who worked as a housekeeper. He had a couple of small run-ins with the police for issues like noise and arguing with the neighbors, and the run-ins begat fines. He fell short on his bills, and things began to snowball. He borrowed from loan sharks, resorted to cheating friends out of money, borrowed money from family he never intended to pay back and, I suspect, shoplifted. My landlord later confirmed what I'd worried for a while: My roommate had skimmed money from our rent checks (including my share) for food and transportation. While I don't believe QOL fines started him down his shady path, the summons only stoked his desperation. I doubt he's the only one, as I doubt advocates of broken windows policing ever stop to ponder the next steps for people who draw fines and who are themselves broke.


Small penalties can precipitate risky acts when they are not, as a portion of one's income, small. Here's what New York charges people for various minor offenses:




  • $25 for an open container of alcohol

  • $115 for stopping or standing in a roadway or highway

  • $115 for standing or parking on a curb when not allowed

  • $250 for disorderly conduct

  • $250 for a noise disturbance



Police get broad leeway in determining whether to cite you for such offenses. Take noise disturbances. Some are obvious: a bellowing car stereo, a party, hollering on the street. Or perhaps merely raising your voice to a police officer.

Sleeping or resting in public is another vague standard, used to clear away people who appear homeless or vagrant. Black men are frequently arrested or fined for falling asleep on the train, even if they're simply tired on a long commute. Lewd conduct fines can arise simply from wearing your pants too low. If you are wearing a two-finger ring and happen to be black, you can be arrested for jewelry that reminds a cop of brass knuckles. QOL literally allows police to mete out punishment if they don't like your look.


If none of these fit, the standby is disorderly conduct, the most malleable of the QOL fines. Disorderly conduct can include but is not limited to asking a question of an officer, cursing under your breath, or making people nervous. And if you continue in this so-called disorderly conduct, you could be charged with resisting arrest. As many people of color are aware by now, resisting arrest makes a handy explainer for injuries incurred by arrested and handcuffed individuals in police custody.


The Police Reform Organizing Project, a group that aims to end police abuses against vulnerable people in New York, has tallied some other recent crimes that led to arrests for people of color:




  • Walking between the cars of a stopped subway train

  • Occupying two seats on a mostly empty subway train

  • Putting a foot on a subway seat

  • Putting a backpack on a subway seat

  • Using a loved one's transit pass to enter the subway

  • Asking another person to swipe their pass to get you onto the subway

  • Asking people for a handout while holding open a door to an ATM

  • Standing in front of or in the lobby of your own building

  • Insisting on your rights when stopped and questioned for no apparent reason

  • Filming/recording, while not interfering with a police activity

  • Being a pedicab driver and parking in an unauthorized space or not properly displaying your rates

  • Jaywalking

  • Begging

  • Riding a bicycle on the sidewalk



Now, QOL disparities do not include driving while black, civil forfeiture laws of confiscating property, stop-and-frisk, the illegal (but still used) vertical patrolling of housing projects or the treatment that people of color receive once they are in the judicial system. We are just talking about simple things. Like being able to stand on a street corner and be pretty sure a cop won't start a conversation that ends with him fining you or locking you up.

This work slowdown highlights a low-level white privilege: the assumption of not-guiltiness. People of color have suddenly gotten a peek into this everyday advantage. It comes as a relief. Several of my friends posted joyful Facebook updates when the news made the rounds:


"Keep it up forever, and fire all the cops that would be doing the summonses."


"And look! No chaos in the streets! Amazing!"


A year after my court date, I was once again with friends, loitering after a rain-soaked evening of Shakespeare in the Park. These friends were white and drunk from consuming alcohol in public. As we filed out of the bleachers one of the guys held up a comically huge bag of weed and asked if anyone wanted to get high in the bushes. Everyone but me joined. Paranoid of the police and decidedly un-high, I walked quickly out of the park, toward home. The following day I asked my friend with the weed how things went. He was nonchalant: They'd found a patch of dry ground behind some bushes and smoked up. When I asked if they ran into any problems, he looked baffled. No, this was his city. What was there to be worried about?


Sometimes when I watch the video of Eric Garner being choked to death by a swarm of officers who suspected him of selling loose cigarettes, I juxtapose that with my friends' mischievous giggling as they retreated into the park to smoke an illegal drug in public. I wish we could all have that giddy thrill at little transgressions. But to do that one has to feel that he is free.


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US steps up airport, federal building security after Paris attacks

tsa

© Reuters / Kevork Djansezian



The Department of Homeland Security secretary has announced increased vigilance regarding national security, as well as stepped-up random searches of travelers and carry-on luggage in the wake of the recent terror attacks in Paris.

In the announcement made on Monday, Homeland Security Secretary Jeh Johnson said the Federal Protective Services - which provides security for US government buildings - will be expanding its reach to major cities and will vary shifts and patrols from location to location. The Transportation Security Administration (TSA) will also conduct random searches of passengers and carry-on luggage at US airports.


"We have no specific, credible intelligence of an attack of the kind in Paris last week being planned by terrorist organizations in this country," said Johnson in a released statement.


Johnson said the US would continue to share information with the French and other allies about terrorist threats, suspicious individuals, and foreign fighters. Last week's shooting at French satirical newspaper Charlie Hebdo followed a hostage situation in Sydney in December and a gunman's attack on the Canadian parliament in October - all of which are causing Homeland Security to increase protection.


"[The] recent attacks in Paris, Ottawa, Sydney, and elsewhere, along with the recent public calls by terrorist organizations for attacks on Western objectives, including aircraft, military personnel, and government installations and civilian personnel," Johnson said.


tsa

© AFP Photo / Jewel Samad



Johnson added that the DHS is providing state and local law enforcement with FBI training in incident response. He said he personally met with community leaders in Columbus, Chicago, Minneapolis, Boston, and Los Angeles to engage them in countering violent extremism, and he is looking forward to a White House summit on countering violent extremism on February 18.

The enhanced measures by the TSA were reported by CNN to be in response to an article in magazine, a publication by Al-Qaeda in the Arabian Peninsula, which describes how to make homemade bombs using household products.


CNN reported that an official said that increased aviation security stems from the threat of non-metallic improvised explosive devices only detectable by full body scanners - a technology that is not available at smaller airports due to cost.


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Asteroid 2004 BL86 to sweep close on January 26

It'll be closer than any known asteroid this large until 2027. At its closest, telescopes and binoculars will show it moving rapidly in front of the stars.

Asteroid 2004 BL86

© NASA/JPL-Caltech

NASA caption: This graphic depicts the passage of asteroid 2004 BL86, which will come no closer than about three times the distance from Earth to the moon on Jan. 26, 2015. Due to its orbit around the sun, the asteroid is currently only visible by astronomers with large telescopes who are located in the southern hemisphere. But by Jan. 26, the space rock’s changing position will make it visible to those in the northern hemisphere.



An asteroid, called 2004 BL86 by astronomers, will sweep safely past Earth on January 26, 2015. The flyby is notable because 2004 BL86 will be the closest of any known space rock this large until asteroid 1999 AN10 flies past Earth in 2027. This asteroid is estimated from its reflected brightness to be about 500 meters in diameter (about a third of a mile, or 0.5 km). At the time of its closest approach - January 26, 2015 at 16:20 UTC, or 10:20 a.m. CST - the asteroid will be approximately 745,000 miles (1.2 million kilometers) from Earth, or about three times the moon's distance.

Don Yeomans, who on January 9 retired as manager of NASA's Near Earth Object Program Office after 16 years in the position, said:




Monday, January 26 will be the closest asteroid 2004 BL86 will get to Earth for at least the next 200 years. And while it poses no threat to Earth for the foreseeable future, it's a relatively close approach by a relatively large asteroid, so it provides us a unique opportunity to observe and learn more.




The asteroid is expected to be observable to amateur astronomers with small telescopes and strong binoculars beginning in the evening of January 26 and into the morning of January 27. Its peak brightness will be about magnitude 8.8, meaning it will not be bright enough to view with the unaided eye. The asteroid will be at its most visible over Europe, Africa, and North and South America. Australians and east Asians will have to look a few hours earlier, when the asteroid isn't as bright. The asteroid will be moving about four degrees every hour through the course of the night. That's fast, faster than the moon moves (about half a degree per hour). The asteroid will be whizzing past in front of the constellations Hydra, Cancer, and Leo.

You can also watch on your computer. The Virtual Telescope Project will feature real-time images and commentary.


Donald Yeomans said:




I may grab my favorite binoculars and give it a shot myself.


Asteroids are something special. Not only did asteroids provide Earth with the building blocks of life and much of its water, but in the future, they will become valuable resources for mineral ores and other vital natural resources. They will also become the fueling stops for humanity as we continue to explore our solar system.


There is something about asteroids that makes me want to look up.




A telescope of the Lincoln Near-Earth Asteroid Research (LINEAR) survey in White Sands, New Mexico initially discovered asteroid 2004 BL86 on January 30, 2004.

At this flyby of the asteroid, astronomers plan to observe it with microwaves, and to acquire radar-generated images of the asteroid during the days surrounding its closest approach to Earth.


Bottom line: The flyby of 2004 BL86 on January 26, 2015 will be the closest by any known space rock this large until asteroid 1999 AN10 flies past Earth in 2027. At the time of its closest approach, the asteroid will be approximately 745,000 miles (1.2 million kilometers) from Earth, or about three times the moon's distance.


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