Tag: 爱上海CG

first_imgIn the nearly five decades since the first lunar surveys were conducted as part of NASA’s Apollo space program, scientists have advanced a number of increasingly complex theories to explain the vast swaths of highly magnetic material that were found in some parts of the moon’s crust.But now a team of researchers from Harvard, Massachusetts Institute of Technology, and the Institut de Physique du Globe de Paris have proposed a surprisingly simple explanation for the unusual findings, suggesting that the magnetic anomalies are remnants of a massive asteroid collision. As described in a paper published March 9 in Science, the researchers believe that an asteroid slammed into the moon approximately 4 billion years ago, leaving behind an enormous crater and iron-rich, highly magnetic rock.While there is evidence that the moon once generated its own magnetic field, there is little to suggest it was strong enough to account for the anomalies seen in earlier surveys, said Sarah Stewart-Mukhopadhyay, the John L. Loeb Associate Professor of the Natural Sciences and one of three co-authors of the paper. To explain the findings, researchers turned to a number of elaborate scenarios.“The conundrum has always been that the magnetism we see on the moon is not correlated with any surface geology,” she said. “The theory that has been most commonly cited to explain it is an ‘impact-induced field,’ in which an impact concentrates and amplifies the moon’s magnetic field. But it was difficult to test. People have tried to model it, but it is right at the edge of what could work.“We have a simpler idea,” she continued. “Because the fields in this area are stronger than those found in any normal lunar rocks, our hypothesis is that it isn’t lunar material. We know the magnetic properties of asteroidal material are much higher than that of the moon. It is possible that metallic iron from an asteroid could have been magnetized by the impact, and deposited on the moon.”Their first clue came from the surveys that had long confounded scientists. When combined with more recent, hyper-accurate topographical surveys of the moon’s surface, it quickly became clear that most of the magnetic anomalies are scattered around the rim of an enormous, 2,400 kilometer-diameter crater known as South Pole-Aitken.The oldest definitive feature on the moon, the crater is between 3.9 and 4.5 billion years old, and is slightly elongated, suggesting it was formed by an object that struck at an oblique angle.Testing that hypothesis, however, proved tricky.“The question was whether the projectile material could survive and stay on the moon, and where it would end up,” Stewart-Mukhopadhyay said. “What I did was model the impact and formation of the basin, using computer codes that are typically used to model explosives.”To create those models, Stewart-Mukhopadhyay started with “equations of state,” mathematical formulas that describe the asteroid and the moon’s crust, mantle, and core. The far trickier part of modeling the impact, however, is in describing the rheology, the conditions under which each material deforms and flows.“We modeled a number of scenarios using faster or slower impacts and more shallow or more vertical angles,” she said. “Each time, the model produced similar results to what we see on the moon.”Beyond its surprisingly simple explanation to a decades-old scientific puzzle, the paper suggests new ways to answer questions about what the early solar system was like, and how the magnetic fields of the planets were formed.“We don’t have much evidence of what was hitting the Earth before 3.9 billion years ago,” Stewart-Mukhopadhyay said. “And there are some big questions about where those projectiles were coming from. Presumably, if you picked up even the soil from this part of the moon, you would have some of the material that came along with this large impact event.“It may also be true that extraterrestrial materials play a larger role in the magnetic fields of other planets than anyone has appreciated,” she continued. “Magnetism is one of the clues that lets us construct a geologic history of the surface of a planet. If we now have to consider that it may have come from a collision like this one, that’s something we need to be aware of.”last_img read more

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first_img“We have also installed land-retaining walls [to prevent landslides] as well as other facilities and utilities in the housing complex,” said Lilik Lastantyo Adiarso, the head of the ministry’s specific non-vertical housing task force in Aceh, on Thursday.Read also: Indonesian fishermen grapple with climate changeThe ministry allocated Rp 6.4 billion (US$3,9 million) to build the 50 houses in Simeulue, as well as an additional Rp 713 million to build supporting facilities, such as a public road and clean water network.Lilik went on to say that the housing program was initiated to combat poverty.“We hope the local administration and fisherfolk living in these houses will find these facilities useful and also maintain them so the buildings won’t get abandoned” he said.Simeulue Regent Erli Hasim said the local administration had vowed to maintain the housing provided by the ministry. He went on to say that his office would work to relocate local fisherfolk to the housing complex immediately.The ministry announced in February that it had also provided 25 houses for fisherfolk in North Kayong regency, West Kalimantan. (trn)Topics : The Public Works and Housing Ministry handed over 50 homes measuring 28 square meters to fisherfolk living in Linggi village, East Simeulue district, Simeulue regency, Aceh, on Thursday.Such assistance was expected to help improve the welfare of fisherfolk in the village, as they now had a proper place to live.Each house comprises two bedrooms, a bathroom and living room, and is built from brick and concrete.last_img read more

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first_imgAside from online sellers, the BIR memo also covers “other stakeholders involved” in online transactions “such as payment gateways, delivery channels, internet service providers, and other facilitators.” MANILA – Instead of taxing online sellers, the Bureau of Internal Revenue (BIR) should first collect the unpaid taxes of the Philippine Offshore Gaming Operators (POGOs).Opposition senator Risa Hontiveros reiterated this Thursday, saying the government should first prioritize the welfare of the Filipino, who resorted to online selling as alternative during the coronavirus disease 2019 (COVID-19) pandemic. “Imbes na online sellers, baka pwedeng singilin muna ang mga POGO na may P50 billion in unpaid taxes?” Hontiveros said in a statement. “Pwede bang kapakanan ng Pinoy muna?”The BIR earlier came up with Memorandum Circular No. 60-2020, which states that “all persons doing business and earning income in any manner or form, specifically those who are into digital transactions through the use of any electronic platforms and media, and other digital means,” shall register to ensure that they are tax compliant. But Hontiveros questioned why the government seems to impose strict policies against Filipinos, while being lenient on POGOs.“Bakit ba ang luwag natin sa POGO pero ang lupit sa mga Pilipino? Kahit na may P50-B unpaid taxes sila, at kahit na di essential, pinayagan pa ring mag-operate sa ilalim ng ECQ (enhanced community quarantine). Mayroon din silang mass testing at tayo wala,” she said.Senator Joel Villanueva also made the same sentiment as he lauded the Filipinos who were engaged in online selling as alternative after not getting cash assistance from the government.“Pasalamat nga tayo at madiskarte ang mga Pilipino. Wala na ngang ayuda, ita tax pa, hindi naman milyon-milyon ang kinikita ng maliliit na online sellers,” Villanueva said in a Twitter post.Meanwhile, Malacañang assured the two senators the BIR is going after the P50 billion tax debts by the POGOs in the country as they were not allowed to resume operations until they settle their tax dues.“Huwag silang mag alala sinisingil natin ang mga POGOs. Hindi sila makakapagbukas nang hindi nagbabayad,” Presidential spokesperson Harry Roque said in a virtual press conference on Thursday./PN “Bakit ba ang luwag natin sa POGO (Philippine Offshore Gaming Operators) pero ang lupit sa mga Pilipino?” asks senator Risa Hontiveros. JOSEPH VIDAL/SENATE PRIBlast_img read more

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first_imgUpdate on the latest in sports: MLB has pushed back opening day until mid-May at the earliest because of the new coronavirus. The decision follows the federal government recommendation restricting events of more than 50 people for the next eight weeks.Baseball Commissioner Rob Manfred made the announcement following a conference call with executives of the 30 teams. His office issued a statement saying teams remain committed to playing as many games as possible when the season begins.VIRUS OUTBREAK-NHLPlayers can return home, self-isolateUNDATED (AP) — NHL players have been told they can return home and self-isolate there until the end of March while hockey is on hold amid the coronavirus pandemic. Associated Press — The Falcons will dramatically boost their financial flexibility by releasing three high-priced veterans — running back Devonta Freeman, cornerback Desmond Trufant and offensive tackle Ty Sambrailo.— A person with knowledge of the decision says the Vikings have placed the franchise tag on safety Anthony Harris.— Ben Watson is hanging up his cleats for the second time. The 39-year-old tight end announced his retirement in a message on Twitter on Monday, marking the end of a 15-year NFL career that included two stints in New England, as well as stops in Cleveland, New Orleans and Baltimore.,Tampa Bay Lightning advance to face Dallas Stars in Stanley Cup finals, beating New York Islanders 2-1 in OT in Game 6 — Free agent tackle Jack Conklin has agreed to a three-year, $42 million contract with the Browns, according to his agent. Conklin is perhaps the best tackle available on this year’s market. His agent says Conklin will get $30 million guaranteed and earn $20 million in his first year.— The Vikings have reached an agreement with punter Britton Colquitt on a three-year, $9 million contract, according to a person with knowledge of the deal.— The Falcons have acquired tight end Hayden Hurst from the Ravens. That’s according to a person familiar with the deal. Atlanta has released backup tight end Luke Stocker and offensive tackle Ty Sambrailo. The Falcons also will cut running back Devonta Freeman and cornerback Desmond Trufant.— A person with knowledge of the move said the Redskins have agreed to re-sign inside linebacker Jon Bostic to a two-year, $6.6 million deal.— A person familiar with the negotiations says defensive end Shaq Lawson has agreed to a $30 million, three-year contract with the Dolphins. The league cautioned that it will not be able to even provide guidance on the potential reopening of team practices for another 45 days, which could make May the earliest possible restart date.Players had previously been told to remain in their team’s city and await further direction.The new directive comes in the aftermath of the CDC’s recommendation the U.S. not hold gatherings of 50 or more people for the next eight weeks.VIRUS OUTBREAK-NFL DRAFTNo public events for NFL draft The fourth-year pro had 7 ½ sacks and 34 solo tackles last year.The trade was completed immediate after the 49ers announced a deal to keep defensive lineman Arik Armstead with a five-year contract worth up to $85 million. Armstead recorded 10 sacks and 18 quarterback hits last season. He’s been with the Niners since being selected 17th overall in the NFL draft.Elsewhere around the NFL:— Vikings quarterback Kirk Cousins has accepted a two-year, $66 million contract extension. Cousins was entering the final season of the fully guaranteed, three-year, $84 million contract he signed as a free agent in 2018. He was scheduled to count $31 million against the salary cap, but a personal familiar with the trade tells The Associated Press the new pact will reduce by $10 million the team’s charge for 2020.— The Cardinals have picked up three-time All-Pro receiver DeAndre Hopkins from the Texans for running back David Johnson and draft picks. That’s according to a person familiar with the trade. Hopkins has three years remaining on a five-year, $81 million deal he signed in 2017. He caught 104 passes for 1,165 yards and seven touchdowns last year. — McLaren says the team member who tested positive for coronavirus at the Australian Grand Prix “is recovering well” and that his “symptoms have gone.” The British team pulled out of the season-opening Formula One race on Thursday because of the positive test. The race was canceled on Friday. With the first four races postponed, the F1 season will not resume until May at the earliest.NFL-NEWS49ers deal Bucker, keep ArmsteadUNDATED (AP) — The San Francisco 49ers have lost one talented defensive lineman while retaining another.The Niners have shipped defensive tackle DeForest Buckner to the Indianapolis Colts for the No. 13 pick in this year’s draft. A person familiar with the deal said Buckner will receive a new contract worth $21 million a year from the Colts. Share This StoryFacebookTwitteremailPrintLinkedinRedditVIRUS OUTBREAK-MLBBaseball season won’t start until mid-May, at the earliestNEW YORK (AP) — It will be at least two more months before the Major League Baseball schedule will begin.center_img — The Bengals used their franchise tag on A.J. Green. That gives them time to try to work out a long-term deal with the star who is one of the most accomplished receivers in franchise history and would be a vital part of breaking in a new quarterback.— The Chiefs have placed the nonexclusive franchise tag on Chris Jones, raising the possibility that the Pro Bowl defensive tackle will remain with the Super Bowl champions for at least one more season.— The Patriots have placed a franchise tag on left guard Joe Thuney.— The Giants have placed a non-exclusive franchise tag on defensive tackle Leonard Williams.— Longtime Steelers offensive lineman Ramon Foster is retiring. The 11-year veteran made the announcement on Instagram. March 16, 2020 UNDATED — Indianapolis Motor Speedway officials say they are holding off on postponing the month of May activities that conclude with the Indianapolis 500 on Memorial Day weekend.The speedway issued a statement Monday saying officials are aware the CDC’s interim guidance suggesting the postponement of events involving more than 50 people over the next eight weeks.The Indy 500 draws crowds in excess of 300,000.In other sports developments related to the coronavirus:— The women’s professional tennis tour has suspended all competition until May 2 because of the outbreak. The WTA says it is calling off clay-court tournaments in Stuttgart, Istanbul and Prague scheduled for April, adding those to a list of events previously canceled. The tour says a decision will be made “in the week ahead” about the rest of the European clay-court circuit. The next Grand Slam tournament is the French Open, which is scheduled to begin in Paris on May 24. — The leader of the IOC’s coordination commission for the Tokyo Olympics says there is no May deadline to cancel the games and he remains confident the event will go ahead despite sports coming to a virtual standstill globally amid the coronavirus outbreak. John Coates told the Sydney Morning Herald newspaper: “It’s all proceeding to start on the 24th of July.” Former IOC vice president Dick Pound said in an interview with The Associated Press last month that the end of May loomed as a possible deadline for the IOC to make a call on the Tokyo Olympics.— The Penn Relays has been canceled in response to the coronavirus pandemic. The prestigious track event was scheduled for April 23-25 in Philadelphia and had been held uninterrupted since 1895. The event celebrated its 125th consecutive running last year. The University of Pennsylvania hosts the event and says it will attempt to host a substitute track meet at a later date in late May or early June.— Keeneland race track in Kentucky has canceled its spring meet because of COVID-19. The meet was scheduled for April 2-24, with the $1 million Blue Grass Stakes awarding 170 points toward the Kentucky Derby, the highlight of the opening weekend.— The Greek Olympic committee says the Olympic flame handover ceremony for the Tokyo Games will take place without spectators in an effort to contain the coronavirus outbreak. The committee canceled the remainder of the Olympic torch relay last week after crowds gathered in southern Greece to watch part of the torch relay in Sparta, where the torch was carried by actor Gerard Butler.— The Kontinental Hockey League is taking a one-week pause in its playoffs to come up with a new format and schedule for the six remaining Russian teams. Finland-based Jokerit and Kazakhstan-based Barys Nur-Sultan pulled out of the playoffs amid the oronavirus pandemic. — The Titans have tagged Derrick Henry as their franchise player, making sure they keep the NFL rushing leader around for at least this season. Henry had 1,540 yards rushing during the 2019 regular season before gaining another 377 yards in Tennessee’s first two playoff games, leading the Titans to the AFC title game.The Buccaneers have placed the franchise tag on NFL sack leader Shaquil Barrett, who would be scheduled to make just under $16 million this season. Bruce Arians stated late last season that the 27-year-old outside linebacker “ain’t going anywhere” after setting a team record with 19½ sacks in 2019. The move likely means the departure of quarterback Jameis (JAY’-mihs) Winston, who will become an unrestricted free agent if the Bucs don’t re-sign him by Wednesday.— The Cowboys have placed their exclusive franchise tag on quarterback Dak Prescott, securing his rights for an estimated $31.5 million while the sides continue working on a long-term deal. Prescott has played his entire four-year NFL career with the Cowboys and threw for over 4,900 yards, 30 touchdowns and 11 interceptions last season.— Dallas has re-signed Blake Jarwin to a three-year, $24 million package that includes $9 million guaranteed. Jarwin had 31 receptions for 365 yards and three touchdowns in 2019.— The Steelers are holding onto Bud Dupree by placing the franchise tag on the outside linebacker. Dupree could make around $16 million in 2020 if he signs the tag. Dupree collected a career-high 11 1/2 sacks in 2019. NEW YORK (AP) — The NFL will proceed with its draft but without public events next month in Las Vegas. It’s not yet clear, however, if the draft itself will be held in the city. Commissioner Roger Goodell said Monday the draft will take place April 23-25 as scheduled but under a modified format still being developed.The draft will be televised regardless of its venue or format. SPORTS-VIRUS OUTBREAKSpeedway officials take wait-and-see approach — According to a person familiar with the deal, free agent linebacker Nick Kwiatkoski has agreed to a contract with the Las Vegas Raiders.— Offensive lineman Ereck Flowers has agreed to terms on a $30 million, three-year contract with Miami. The deal was confirmed by Flowers’ agent, who said $19.95 million is guaranteed.— The Bills have announced re-signing offensive lineman Quinton Spain to a three-year contract.— The Colts have released defensive tackle Margus Hunt and will re-sign receiver Daurice Fountain.— The Cardinals have placed the transition tag on running back Kenyan Drake, which allows the team to match any offer he receives from another team during free agency.last_img read more

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first_imgA Pico Rivera man who asphyxiated five of his six children by lighting a charcoal grill inside his home and leaving it burning in a hallway is appealing one of his convictions. Adair Garcia appealed his conviction of causing great bodily injury to his then-9-year-old daughter, who survived. Oral arguments had been scheduled to be heard Thursday but were waived. Instead, the appellate court will weigh written arguments from both sides. The court has 90 days in which to issue a response. AD Quality Auto 360p 720p 1080p Top articles1/5READ MOREOregon Ducks football players get stuck on Disney ride during Rose Bowl eventGarcia is serving six consecutive life sentences, plus an additional three years for causing great bodily harm to his second-eldest daughter. His five other children, ranging in age from 4 to 10, all died when carbon monoxide fumes from the burning grill filled the home. Defense attorney Janice Blair said she filed the appeal on grounds that Garcia did not directly physically injure his daughter. “The argument was that the infliction of great bodily injury required under the law for that enhancement requires a more direct infliction of the injury than occurred here,” Blair said. “The great bodily injury enhancement was on the basis of the carbon monoxide poisoning, and that was the product of the barbecue fire – the intervening aspect.” But Deputy Attorney General Yun Lee, in his written argument, said Garcia’s actions did indeed directly inflict injury on the daughter. “\ put \ in the bedroom and lit the barbecue grill in the hallway, causing carbon monoxide to fill the air,” Lee wrote. “\ put towels in the bathroom floor and a fleece blanket on the wall to enclose the area.” However, even if the court overturns the enhancement, Garcia’s six consecutive life sentences would still stand. Only the additional three years would be withdrawn, said Lee. Garcia, who was 33 at the time, took his children to a Chuck E. Cheese restaurant, then to see the movie “Peter Pan” at the Puente Hills Mall on Feb. 20, 2002. After the daylong outing, he filmed a videotape for his estranged wife in which coached his children to say good night to their mother and that they loved her. He then addressed his estranged wife directly, telling her she would not have to worry about the children any more. He said that he and the children were “falling asleep” and that they were “going to be in a better place.” He put his children to bed, then lighted the barbecue grill in the hallway. Garcia was convicted of five counts of murder, and one count of willful, deliberate, premeditated murder, which carried a sentence enhancement for “great bodily injury” on his surviving daughter. He received six consecutive life sentences without the possibility of parole, plus three years for the great bodily injury charge. [email protected] (562) 698-0955, Ext. 3026160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set!last_img read more

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