Even for Quantum Particles, Time Flows One Way

first_imgClaims of time symmetry at the quantum level have been discounted by a high-reliability experiment by the Department of Energy.A press release from the SLAC National Accelerator Laboratory announced:Time marches relentlessly forward for you and me; watch a movie in reverse, and you’ll quickly see something is amiss. But from the point of view of a single, isolated particle, the passage of time looks the same in either direction. For instance, a movie of two particles scattering off of each other would look just as sensible in reverse – a concept known as time reversal symmetry.Now the BaBar experiment at the Department of Energy’s (DOE) SLAC National Accelerator Laboratory has made the first direct observation of a long-theorized exception to this rule.Digging through nearly 10 years of data from billions of particle collisions, researchers found that certain particle types change into one another much more often in one way than they do in the other, a violation of time reversal symmetry and confirmation that some subatomic processes have a preferred direction of time.Reported this week in the journal Physical Review Letters, the results are impressively robust, with a 1 in 10 tredecillion (1043) or 14-sigma level of certainty – far more than needed to declare a discovery.The BaBar experiment was an ideal test of the CPT (charge-parity-time) Theorem that states, “the three symmetries must remain in balance for any given particle system. If one of the symmetries is out of whack, at least one of the others must be, too.”  Since 10 years of BaBar data already had evidence of CP asymmetry in hand, physicists thought it “was a good place to look for violation of time reversal symmetry that would serve to balance CPT as a whole.”  Other hints of time reversal were harder to test.  This one shows that the rate of time reversal for quantum events is outmatched: “the changes are happening at a different rate as time moves forward than when it is reversed,” a diagram caption states.One researcher said, “It was exciting to design an experimental analysis that enabled us to observe, directly and unambiguously, the asymmetrical nature of time.”  BaBar also had another goal: “BaBar, which collected data at SLAC from 1999 to 2008, was designed to tease out subtle differences in the behavior of matter and antimatter that might help account for the preponderance of matter in the universe.”  The “antimatter problem” still is a puzzle for modern cosmology.  See also Science Daily‘s coverage.It appears that time asymmetry, a consequence of the Second Law of Thermodynamics, is more firmly established by this experiment (confirmation to a one part in a tredecillion is pretty rare!), but we will leave it to the specialists to explain the implications.  What impact will this have on cosmology? (Visited 27 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

No major surprises today from the USDA

first_imgShare Facebook Twitter Google + LinkedIn Pinterest Prior to the report grains were all 1-2 cents lower. The DOW was 80 lower, and crude oil was 30 cents lower. Following the report corn was unchanged, soybeans were up 1 cent, and wheat was unchanged.Corn exports were lowered 50 million bushels to 1.65 billion bushels. That is not a surprise. Corn used for ethanol was increased 25 million bushels to 5.225 billion bushels. An increase in ethanol had little traction ahead of the report. However, it is not unrealistic due to weekly grinds the past month continually above the weekly amount needed to reach the yearly goal.Soybean crush was reduced 10 million bushels to 1.88 billion bushels. That should not be a surprise as domestic crush margins have been below 50 cents in recent weeks. It compares to crush margins last year reaching over $2 a bushel a year ago. Soybean ending stocks were up 10 million bushels. While some had expected soybean exports to be reduced, reducing one component, the crush, is not a surprise.Corn production in Brazil was up 2.5 million tons from last month’s 81.5 million tons. Argentina corn production was increased 1.4 million tons to 27 million tons. Corn production in South America was expected to remain unchanged. These numbers are somewhat bearish for corn. Don’t be surprised to see US corn exports see additional changes lower in coming months.Many might suggest that the February USDA report is easily a yawner, paying little attention to its pending release and even less attention once it is published.  But after all, it is the USDA. A surprise can appear at any time. During the month of February the US budget office provides acres estimates for 2016. In addition, USDA will have its yearly outlook conference later this month. Then next month on March 31 USDA will publish its annual planting intentions report for the upcoming growing season. This combination of acres estimates will provide lots of fodder for market discussions the next six weeks. Today’s report did not contain any production changes for the US. The trade had expected soybean production could be reduced in Brazil while increasing in Argentina. The soybean harvest is underway in Brazil. Argentina is not far behind.  Corn production in South America was expected to be nearly identical to that last month.Grains have been sideways to boring for the past month. Rallies have been short-lived, small in size, not meeting expectations for those still holding unsold bushels. Yesterday corn exited its tight trading range, trapped within just nine cents for 13 trading days. Talk about something ready to happen, just as a coiled snake waiting for its unsuspecting prey. In that time corn basis has been steady and in some cases even lower. Corn exports on Monday were just 17.3 million bushels, below the low of trade expectations. Meanwhile, soybean exports hit 43.1 million bushels, above the high of expectations. Soybean exports continued their trend of exceeding corn exports. US grain exports continue to disappoint as yearly totals slide further and further behind those of a year ago. The Monday reports continued the trend from last fall detailing that US grain exports are declining compared to a year ago. As US exports shrink, it has traders and producers expecting smaller exports and increasing ending stocks for either February or March.  Non-commercial traders are now long corn as they exited the short positions they held for many months. The flip from short to long was a process over many weeks. Last week it was noted that while the non-commercials traders were still short, the much smaller amount of shorts they held was a surprise. Some had suggested it could provide additional corn price volatility in coming weeks due to the reduced need for any potential short covering to take place. China’s markets are closed all week due for the Lunar New Year. US stocks have taken a beating so far in 2016 due in part to concerns that the economic slowdown in China could reach the US. Keep in mind that in times of uncertainty and especially if it extends for several days, the general mentality can be, “risk off, get me out.”  Or even simpler prices go lower. The term “risk off,” is not new. Don’t be surprised to hear it more and more this year.The market will now go back to focusing on South America weather and upcoming US acres projections for 2016. Farmer selling for old corn will likely not be large in coming weeks unless we see the March CBOT corn reach back above the $3.70-3.75 level. At mid-day today it is $3.62.last_img read more

Man questions MLA Samuel Sangma, gets beaten up

first_imgOne person was seriously injured in South Garo Hills district of Meghalaya after an MLA allegedly attacked him for asking “uncomfortable” questions in public on development works in his constituency, officials said on Saturday.According to the FIR filed at the Baghmara station, Freedom Marak sought answers from MLA Samuel Sangma about the tardy progress of development works. In a fit of rage, the MLA started beating up Mr. Marak, who was left with a swollen face and blackened eyes. Another resident was also allegedly beaten up though he did not file a complaint.South Garo Hills SP Abraham T. Sangma said, “We have received the complaint from one person who was allegedly beaten up by the MLA himself for questioning him.”He added, “The matter is currently under investigation and the person who was beaten up has been sent for a medical test.”Mr. Samuel was elected as an independent candidate from Baghmara constituency in the 2013 Assembly elections.A third-time MLA, Mr. Samuel is supporting the Congress government in the State.The incident and the photo of Mr. Marak went viral in the social network sites.“We condemn the attack on an innocent victim who sought to know as a voter. He [MLA] has no right to beat him up,” Civil Society Women Organisation president Agnes Kharshiing said.“A failed MLA should be taken to task and he should be arrested,” A. Rangad, convener, Thma U Rangli-Juki TUR), a progressive people’s group, said.last_img read more

Federer not keen on his kids following in footsteps

first_imgRoger Federer. APRoger Federer says he’s a big believer in kids playing sport, but he’s not keen on his own children following in his footsteps.The Swiss great and wife Mirka had identical twins Myla Rose and Charlene Riva in 2009 and another set came along five years later, Leo and Lenny. ADVERTISEMENT They are occasionally seen watching their dad ply his trade, but after years travelling the world on the tennis tour, the 36-year-old would prefer not to have to do it all over again.“I mean, I hope they don’t just because we don’t need another 25 years on tour,” he said at the Australian Open when asked if he would encourage them to be professional players.FEATURED STORIESSPORTSWATCH: Drones light up sky in final leg of SEA Games torch runSPORTSLillard, Anthony lead Blazers over ThunderSPORTSMalditas save PH from shutoutBut he added: “No, I’m just a supportive parent. I can’t tell which direction they’re going to go. “If there’s going to be anything in sports or somewhere in finance or business, I have no idea where they’re going to go. All I know is I’ll be incredibly supportive of them.” MOST READ Suarez Navarro rallies into Open quarterfinal Kammuri turning to super typhoon less likely but possible — Pagasa “I think it’s great for them to do sports early on in their life. I think it’s good for them,” he said.“Winning, losing, that comes a little bit later, but you learn a lot from that. I did anyway. I think also you make a lot of friends through sports.“You get to know yourself a bit better. It’s healthy. You move around. You go outside. I’m a big believer in these things.” Globe Business launches leading cloud-enabled and hardware-agnostic conferencing platform in PH 2 ‘newbie’ drug pushers fall in Lucena sting Slow and steady hope for near-extinct Bangladesh tortoises NEXT BLOCK ASIA 2.0 introduces GURUS AWARDS to recognize and reward industry influencers Don’t miss out on the latest news and information. John Lloyd Cruz a dashing guest at Vhong Navarro’s wedding View comments Brace for potentially devastating typhoon approaching PH – NDRRMC Typhoon Kammuri accelerates, gains strength en route to PH He did reveal they already play tennis, not because he has been encouraging them, but because their friends all do and he doesn’t want them to feel left out.“I’m happy they all do play tennis a little bit because basically literally all our friends who have kids as well, they all play tennis,” he said. “I wouldn’t want my kids to be the only ones who don’t play tennis, so with my wife we have sort of a little requirement on things they have to do in their life, and tennis is unfortunately one of them. “It’s not because we want them to. It’s because I think it would be a pity if they played no tennis at all.”Despite the reluctance for his children to follow in his footsteps, Federer, who is chasing a 20th Grand Slam in Melbourne, is a great believer in kids playing sport more generally, believing it can teach them a lot.ADVERTISEMENT Read Next Trending Articles PLAY LIST 00:50Trending Articles04:59DOH: Breastfeeding, proper knowledge of child feeding can combat malnutrition00:50Trending Articles01:29Police teams find crossbows, bows in HK university01:35Panelo suggests discounted SEA Games tickets for students02:49Robredo: True leaders perform well despite having ‘uninspiring’ boss02:42PH underwater hockey team aims to make waves in SEA Games01:44Philippines marks anniversary of massacre with calls for justice01:19Fire erupts in Barangay Tatalon in Quezon City LATEST STORIESlast_img read more

BCCI selectors to give final a miss

first_imgDisconcerted by the treatment meted out to them by the Taj Hotel staff in Chandigarh, the five national selectors led by K Srikkanth have decided to give the India-Sri Lanka final in Mumbai a miss.Booked at the Taj to witness the high-voltage India-Pakistan clash live at the PCA Stadium on Wednesday, the five national selectors would have been expected to be a part of Team India’s celebration when they left Shahid Afridi’s team shattered.But contrary to initial plans, they were taken aback when they found that their booking at the hotel – supposed to have a tie-up with the Board of Control for Cricket in India (BCCI) – had been cancelled and ICC officials had been given the rooms allocated to the selectors.Hurt by the BCCI’s refusal to look into the matter and provide them with accommodation, they immediately left for their respective homes.According to a Punjab Cricket Association official, the incident took place as there was a feud between BCCI and ICC over hotel bookings.Paid employees of the BCCI, the selectors are more often than not made to make their own arrangements when it comes to accommodations etc.But being refused accommodation even after booking their rooms well in advance seemed to be too much for them to take.As a result, the selectors have decided to stay away from the final of the ICC World Cup.While chairman of selectors Srikkanth refused to answer calls and reply to messages sent, a hurt Yashpal Sharma, representing North Zone, said that it was for Srikkanth to talk on the matter.advertisement”We are strictly barred from speaking to the media and it is for the chairman of selectors to speak on the issue. All I can say is that we are not going to Mumbai at the moment,” Sharma told MAIL TODAY over phone on Thursday.last_img read more

Virginia: Man beheads self in police presence over domestic dispute

first_imgA Chicago man who quickly accelerated in a sport utility vehicle with a cable around his neck decapitated himself after a domestic dispute in Yorktown, authorities said on Tuesday.Sheriff Danny Diggs said a deputy responding to a call of a domestic disturbance on Tuesday was taking a statement from the man’s ex-wife when another deputy driving by noticed an SUV pulling a utility trailer that was on fire. Authorities say the man started the fire.A firefighter noticed a cable around the man’s neck that was attached to a tree. When deputies tried to get the man to exit the SUV, he accelerated and was pulled from the vehicle and decapitated, they say.Diggs said he arrived at a grisly scene, adding the cable was of the type that could be used to hoist an automobile engine.”Nobody has ever heard of anything like this,” Diggs said. “It’s a really bizarre incident.”Diggs said the man and his ex-wife had quarreled over the man’s living arrangements.”He was looking to relocate from Chicago to this area, and he wanted her to do more than she was willing to do,” Diggs said.The sheriff said he was unsure how long the couple had been divorced. He said they have two school-age children who were not at home at the time.Diggs said officials aren’t releasing the man’s name because they don’t publicly identify suicide victims. However, officials said the man was 46 and from Chicago.last_img read more