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WASHINGTON, May 4 (Xinhua) -- The U.S. National Aeronautics and Space Administration (NASA) announced Wednesday that its Gravity Probe B (GP-B) mission has confirmed two key predictions derived from Albert Einstein's general theory of relativity, which the spacecraft was designed to test.The experiment, launched in 2004, used four ultra-precise gyroscopes to measure the hypothesized geodetic effect, the warping of space and time around a gravitational body, and frame- dragging, the amount a spinning object pulls space and time with it as it rotates.GP-B determined both effects with unprecedented precision by pointing at a single star, IM Pegasi, while in a polar orbit around Earth. If gravity did not affect space and time, GP-B's gyroscopes would point in the same direction forever while in orbit. But in confirmation of Einstein's theories, the gyroscopes experienced measurable, minute changes in the direction of their spin, while Earth's gravity pulled at them.The findings are available online in the journal Physical Review Letters."Imagine the Earth as if it were immersed in honey. As the planet rotates, the honey around it would swirl, and it's the same with space and time," said Francis Everitt, GP-B principal investigator at Stanford University. "GP-B confirmed two of the most profound predictions of Einstein's universe, having far- reaching implications across astrophysics research."GP-B is one of the longest running projects in NASA history, with agency involvement starting in the fall of 1963 with initial funding to develop a relativity gyroscope experiment. Subsequent decades of development led to groundbreaking technologies to control environmental disturbances on spacecraft, such as aerodynamic drag, magnetic fields and thermal variations. The mission's star tracker and gyroscopes were the most precise ever designed and produced.GP-B completed its data collection operations and was decommissioned in December 2010."The mission results will have a long-term impact on the work of theoretical physicists," said Bill Danchi, senior astrophysicist and program scientist at NASA Headquarters in Washington. "Every future challenge to Einstein's theories of general relativity will have to seek more precise measurements than the remarkable work GP-B accomplished."

UNITED NATIONS, Jan. 26 (Xinhua) -- China on Wednesday welcomed the smooth development of the south Sudan referendum, voicing its hope that the parties in south and north Sudan could reach a consensus at an early date on the outstanding issues through dialogue and consultations.Li Baodong, the Chinese permanent representative to the United Nations, made the statement in an interview with Xinhua after he spoke at the UN Security Council about the Chinese stance on the situation of Sudan.Earlier on Wednesday, the Security Council met to hear briefings from Atul Khare, UN assistant secretary-general for peacekeeping operations, and Ibrahim Gambari, the joint special representative of the African Union-United Nations Mission in Darfur (UNAMID), on the current situation in Sudan."China welcomes the smooth development of the south Sudan referendum, this is the result of the joint efforts of north and south Sudan and the international community," Li said."At present, priority should be given to the following work: First, continuous efforts should be made to fully maintain peace and stability in Sudan to enable the country to realize its long- term peace, stability and development," he said. "Second, efforts should be made to encourage the parties in south and north Sudan to continue their efforts for the full implementation of the Comprehensive Peace Agreement (CPA), particularly for a consensus at an early date on the outstanding issues."The referendum, with its week-long polling period ending on Jan. 15, will determine whether south Sudan remains a part of Sudan or becomes independent, in accordance with the 2005 CPA that ended a long-running north-south civil war.The referendum's preliminary results are expected to be announced by Feb. 2, and depending on whether appeals are launched in the courts, the final result will be declared on Feb. 7 or 14.

SAN FRANCISCO, March 8 (Xinhua) -- Google on Tuesday released a new stable version of its Chrome web browser, which the company said is speedier, simpler and safer."With today's stable release, even your most complex web apps will run more quickly and responsively in the browser," Tim Steele, a Google software engineer, said in a blog post announcing the release.The new version of Chrome features a simpler settings page that opens in a tab rather than a dialog box, and contains a search box showing users the settings they are looking for while they type.Users can also synchronize passwords in the browser across their computers, and will be able to encrypt those passwords for extra security.Google said that the latest Chrome browser provides additional layer of protection against malicious web pages, with the extended application of sandboxing technology.The browser can be downloaded for free, and current Chrome users will be automatically updated to the new version soon, Google said.

ADDIS ABABA, Jan. 28 (Xinhua) -- The on-going political crisis in Cote d’Ivoire should be and can be solved peacefully, Chinese Envoy and Assistant Foreign Minister Liu Zhenmin told Xinhua here on Friday, ahead of the 16th African Union (AU) summit scheduled for Jan. 30-31.Liu was in the Ethiopian capital Addis Ababa, the headquarters of the 53-member African bloc, to attend the summit as special envoy of the Chinese government.Cote d'Ivoire has been trapped in a political impasse since the landmark presidential run-off held on Nov. 28. Both incumbent Laurent Gbagbo and opposition leader Alassane Ouattara claimed victory and swore themselves in as president, and formed their respective government.Gbagbo was backed by the country's Constitutional Council, while Ouattara has the support of the electoral commission and the international community including the United Nations (UN), the AU, the Economic Community of West African States (ECOWAS), the United States and France.China hopes various parties and stakeholders in Cote d’Ivoire can resolve their disputes through dialogues and consultations based on the interest of the country and its people, and maintain peace and stability, Liu said.A peaceful solution to the crisis is not only in the interests of the Ivorian people, but of the West African region as a whole, according to Liu.China appreciates the efforts made by the AU and ECOWAS to find a peaceful solution to the crisis, and will continue supporting Africa’s efforts to resolve the crisis peacefully, Liu said.According to the UN, more than 200 people have died from violence during the power struggle between Gbagbo and Ouattara.The 16th AU summit, to be held under the theme “Towards Great Unity and Integration Through Shared Values,” will gather heads of states and government from member states to discuss issues including Africa’s integration, and peace and security in the continent. The situation in Cote d’Ivoire, among others, is expected to top the agenda of the summit.

BEIJING, Jan. 25 (Xinhua) -- China's 11 government departments have jointly released a guideline outlining major measures to lessen noise pollution amid rising noise disputes and complaints, the Ministry of Environmental Protection said Tuesday.The ministry's spokesperson, Tao Detian, said Tuesday the country saw rising complaints about noise pollution, which has caused an increasingly negative impact on the living environment in recent years.The 26-article guideline focuses on addressing noise pollution in fields including industry, construction, traffic and people's daily lives.Further, the regulation bans businesses from using acoustic instruments outdoors to lure customers.Also, heavy noise polluters are banned from entering industrial parks, according to the guideline.Moreover, motor vehicles should strictly observe speed limits, traffic restrictions and use of auto horns around "noise-sensitive buildings" such as hospitals, schools, government organs, scientific research institutions and residential buildings, it said.According to the guideline, government departments would also impose higher fines on noise polluters and collect fees for "discharges of excessive noise," in accordance with law.The newly issued document calls on various government agencies, such as the ministries on environmental protection, science and technology, public security, finance, housing, transportation and railways, to make coordinated efforts to curb pollution.Further, government organs could launch regular inspection campaigns in major cities, it said.According to the guideline, government agencies will set up a system to examine sound-proof qualities of civilian buildings and provide a list of major noise pollution sources by the end of this year.Also, the guideline ordered major cities to establish an automatic noise monitoring system and to equip each city in the country with at least one noise display screen by the end of 2011.