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郑州近视眼激光治疗
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发布时间: 2025-05-30 12:11:40北京青年报社官方账号
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SAN FRANCISCO, Dec. 8 (Xinhua) -- Apple on Thursday released iTunes Rewind 2011 and App Store Rewind 2011, its annual lists of top selling music, TV shows, movies and apps for the year.Apple picks Instagram as "iPhone App of the Year." Instagram is a free photo sharing application which enables users to confine photos into a square shape in an homage to both Kodak Instamatic and Polaroid cameras, and share them on a variety of social networking services.Photo editing software Snapseed is picked as "iPad App of the Year.""Angry Birds" was the top paid iPhone and iPad app for 2011. Its spinoffs, "Angry Birds Seasons" and "Angry Birds Rio," also make to the top 10 lists.ITunes' best-selling movie is "The Social Network" and "Doctor Who" is the best-selling season TV series. An episode of "Walking Dead" is the best-selling TV episode.The best-selling fiction book was "The Help." "Steve Jobs," the only official biography of the late Apple co-founder, was the best- selling non-fiction book.In iTunes Rewind 2011, British singer Adele sweeps three major music category, named for top-selling song (Rolling in the Deep), top-selling album (21) and iTunes Artist of the year for 2011.ITunes also picked Foo Fighter's "Wasting Light" as album of the year, "Pumped up Kicks" by Foster the People as song of the year, and Nicki Minaj as its breakthrough artist of the year.First launched as iTunes Music Store in 2003, the Apple online digital media store became the largest music seller in the United States in 2008. Last February, Apple announced that more than 10 billion songs have been sold in iTunes Store. In 2008, Apple said over 200 million TV episodes had been sold.The Apple App Store was initially released in July 2008. According to Apple's data, more than 18 billion apps have been downloaded as of Oct. 4.

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COPENHAGEN, Nov. 3 (Xinhua) -- The launch of Shenzhou-8 and the successful docking with Tiangong-1 in outer space represented a milestone in both Chinese and international space programs, Danish space scientist and media said Thursday.Michael Linden-Voernle, an astrophysicist at the Tycho Brahe Planetarium in Copenhagen, said new possibilities have opened for both Chinese and international space programs with high expectations."The recent launch of the Tiangong-1 module and now the successful docking with the Shenzhou-8 spacecraft is a very important step - a milestone for the Chinese space program in order to realize the goal of having a permanent presence in space. That means a large space station so this is really an important step, a major milestone," Linden-Voernle told Xinhua in an interview here on Thursday.Besides, a number of Danish news media reported the event, hailing it as a "historic and successful docking." The influential daily Politiken placed a two-minute's video for the successful coupling on its website and showed scenes from the Shenzhou-8 docking with Tiangong-1 together with a short commentary."Tonight two Chinese spacecraft made the historic and successful docking above the atmosphere for the first time ever. China had been the third country in the world after the United States and Russia to master the technique of docking in space. China has laid the foundation for its dominance in space," Politiken said.Jyllands-Posten, one of the bestselling newspapers in Denmark, carried a report with a brief description of China's first space docking under the headline "China closer to its own space station.""As the third country in the world, China has docked two spacecraft together perfectly in space," said Jyllands-Posten.China's unmanned spacecraft Shenzhou-8 and its space lab module Tiangong-1 rendezvoused early Thursday, successfully completing the country's first-ever space docking.

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ISLAMABAD, Oct. 15 (Xinhua) -- President Asif Ali Zardari said on Saturday that the government was committed to address the issues of special people including those afflicted with impaired vision and blindness and called for establishing highest standards for their care.In a message on the International White Cane Safety Day, the President asked the people and relevant government agencies to reflect on the problems of visually handicapped people.He asked them to come up with suggestions to achieve high standards in caring for the disabled as these exist in other civilized nations.The White Cane Safety Day was aimed at creating awareness about the problems and requirements of visually handicapped persons and to take practical steps to address these issues. Enditem

  

NANJING, Dec. 8 (Xinhua) -- Chinese stargazers will have their best view of a total lunar eclipse in 10 years on Saturday if weather permits, the Zijinshan Astronomical Observatory under the Chinese Academy of Sciences (CAS) said Thursday.Wang Sichao, a research fellow with the observatory, said during the total eclipse, the full moon will not completely disappear from the Earth's shadow, but will take on a brilliant bronze color.He said the eclipse will be the best one seen in China since the last one occurred on Jan. 10, 2001."Theoretically, viewers can observe the eclipse from nearly everywhere in the country on Saturday," said the astronomer.He said the eclipse, the second this year, will last for 51 minutes. It will start at 8:45 p.m. and reach its climax at 10:06 p.m.Wang said Chinese viewers will have to wait until Oct. 8, 2014 to see the next total lunar eclipse.

  

BEIJING, Nov. 3 (Xinhua) -- Two Chinese spacecraft accomplished the country's first space docking procedure early Thursday, silently coupling in space more than 343 km above Earth's surface.Nearly two days after it was launched, the unmanned spacecraft Shenzhou-8 docked with space lab module Tiangong-1 at 1:36 a.m., marking another great leap for China's space program.The success of the docking procedure makes China the third country in the world, after the United States and Russia, to master the technique, moving the country one step closer to establishing its own space station.A video grab taken from the China Central Television on Nov.3, 2011 shows the Shenzhou-8 spacecraft docking with the Tiangong-1 space lab module. Unmanned spacecraft Shenzhou-8 docked with space lab module Tiangong-1 early Thursday, according to the Beijing Aerospace Control Center.President Hu Jintao, who is in France for the G-20 summit, sent a congratulatory message on the success of the country's first-ever space docking."Breakthroughs in and acquisition of space docking technologies are vital to the three-phase development strategy of our manned space program," Hu said in the message.Hu said he wishes all the program participants to try all out to fulfill a complete success of the whole mission after the smooth docking.Other leaders, including Wu Bangguo, Wen Jiabao, Li Changchun, Xi Jinping, Li Keqiang, He Guoqiang and Zhou Yongkang, who are Standing Committee members of the Political Bureau of the Communist Party of China Central Committee, watched the mission at the Beijing Aerospace Flight Control Center.China is now equipped with the basic technology and capacity required for the construction of a space station, said Zhou Jianping, chief designer of China's manned space program."This will make it possible for China to carry out space exploration on a larger scale," he said."The capability increases China's ability to act independently in space, as well as its ability to cooperate with others," said Gregory Kulacki, senior analyst and China project manager at the global security program of the Union of Concerned Scientists, a nonprofit scientific advocacy group based in the United States."China's pursuit of an original solution to space docking, that is based on their understanding of the experience of other nations, could lead to innovations or experiences other space-faring nations could find useful," Kulacki said.The world's first space docking was achieved in 1966, when the manned U.S. spacecraft Gemini 8 docked with an unmanned Agena Target Vehicle.Forty-five years later, the maneuver remains a technological challenge. Many of mankind's 300-plus attempts have been met with difficulties or resulted in failure."To link up two vehicles traveling at 7.8 km per second in orbit, with a margin of error of no more than 20 centimeters, is like 'finding a needle in a haystack'," Zhou said.The Shenzhou-8 and Tiangong-1 will separate after flying together for 12 days. After that a second docking procedure will be conducted.Rendezvous and docking, essential to exploring space beyond Earth's orbit, create the possibility of building space stations, resupplying them, transferring astronauts and rescuing them.Without this key know-how, exploration of the moon and beyond requires carrier rockets with significant amounts of thrust. China does not currently possess rockets of this magnitude.Shenzhou-8 and Tiangong-1 both weigh about 8 metric tons, well within the delivery capacity of the Long March 2F rocket. A permanent orbiting space station is designed to be as heavy as 60 metric tons, with docking ports accommodating both manned and freight space vehicles.The interior of both the Shenzhou-8 and Tiangong-1 is an actual environment in which astronauts can live and work. After the Shenzhou-8 tests, the Tiangong-1 will remain a target orbiter for more docking procedures in 2012 by the Shenzhou-9 and -10 spacecraft, at least one of which will be manned to conduct manual docking.Although the Shenzhou-8 is unmanned, it is equipped with devices to record images and data that will help China make improvements to its spacecraft design and astronaut training.Two female astronauts are now believed to be on the active duty roster for future Shenzhou missions, said Chen Shanguang, director of the Astronaut Center of China (ACC)."We must assess both male and female astronauts to verify if human beings can live in space, as there are huge differences between men and women in spite of their common generalities," Chen said."Space exploration activities would be incomplete without the participation of female astronauts," Chen said.The Chinese spacecraft also feature collaborative space experiments under the framework of a Chinese-German science and technology cooperation.German scientists designed bio-incubators for the experiments, while their Chinese counterparts were in charge of the development of control equipment, China's manned space program spokeswoman Wu Ping said.

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