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MessagePosté le: Jeu 29 Mar - 03:28 (2018)    Sujet du message: vans old skool blanche femme pas cher Répondre en citant

GUIYANG puma rihanna rouge creepers , July 23 (Xinhua) -- Technicians began assembling the world's largest radio telescope, whose dish is the size of 30 football grounds, deep in the mountains of southwest China's Guizhou Province on Thursday.

In the afternoon, technicians began to assemble the telescope's reflector, which is 500 meters in diameter and made up of 4,450 panels. Each panel is an equilateral triangle with a side length of 11 meters.

Once completed puma rihanna marron creepers , the single-aperture spherical telescope called "FAST" will be the world's largest, overtaking Puerto Rico's Arecibo Observatory, which is 300 meters in diameter.

Nan Rendong, chief scientist of the FAST project with the National Astronomical Observatory, Chinese Academy of Sciences, told Xinhua that the bigger the dish is puma rihanna bordeaux creeper , the more capable the telescope is and the weaker messages it will receive.

"A radio telescope is like a sensitive ear, listening to tell meaningful radio messages from white noise in the universe. It is like identifying the sound of cicadas in a thunderstorm," he said.

With a perimeter of about 1.6 km, it will take about 40 minutes to walk around the telescope.

The giant dish is built upon a naturally-formed bowl-like valley in the southern part of Guizhou.

"There are three hills about 500 meters away from one another, creating a valley that is perfect to support the telescope," said Sun Caihong puma rihanna rose creeper , chief engineer of FAST's construction, explaining the reason why this site was chosen.

The Karst formation in the local landscape is good for draining rainwater underground and protecting the reflector, Sun said.

The surrounding area has "radio silence" as there are no towns and cities within a sphere of five km and only one county center within a sphere of 25 km, he said.

The huge dish is actually hung over the ground supported by thousands of steel pillars and cables. There will be maintenance passages under it.

To overlook the whole reflector, visitors have to climb up to the top of one of the hills. A hill-top observation platform is under construction and will be open to the public, Sun said.

Not only will it be huge puma rihanna suede femme , the new telescope is also very sensitive.

The dish can shift to receive radio from different angles, said Zheng Yuanpeng, chief engineer of the telescope's panel project.

"Panels can change their positions through connected wires and parallel robots. We can control their position with an accuracy of 1 mm," Zheng said.

The new telescope is expected to greatly enhance Chinese scientists' capacity to observe outer space.

Wu Xiangping, director-general of Chinese Astronomical Society, said that for years Chinese scientists have worked on "second hand" data collected by others and failed to achieve breakthrough.

"Having a more sensitive telescope puma rihanna suede creepers , we can receive weaker and more distant radio messages. It will help us to search for intelligent life outside of the galaxy and explore the origins of the universe," Wu said.

The construction of the telescope began in March 2011 and is set to finish next year.

BRUSSELS, July 14 (Xinhua) -- European Council President Donald Tusk on Tuesday said in a statement that the latest agreement on Iran's nuclear program represents a breakthrough, bringing to an end a 13-year nuclear standoff.

"If fully implemented, the agreement could be a turning point in relations between Iran and the international community, paving he way to new avenues of cooperation between the EU and Iran. Geopolitically puma rihanna noir creepers , it has the potential to be a game changer," said Tusk.

He said all the parties who worked so hard to achieve this agreement deserve congratulations.

"The text of the agreement is precise; we must now join forces to see it through, taking into account regional sensitivities," Tusk said.

The comprehensive agreement was struck earlier Tuesday between Iran and Britain, China, France puma rihanna noir et dore , Germany, Russia and the United States after over two weeks of tough talks in Vienna.

The text of the deal specifies key areas of the Iranian nuclear issue, including sanction relief and action plans.

NAIROBI, Sept. 21 (Xinhua) -- Kenya has called for an increase of funds towards science and technology development in Africa.

With additional funding and good strategies, the governments stand to streamline the continent's development agenda, said Moses Rugut puma rihanna noir et blanc , the Director General of the National Commission for Science, Technology and Innovation in the Ministry of Education.

"Africa requires a renewed funding commitment to help finance research and development in the countries," Rugut said this on Wednesday evening in Nairobi.

He said that countries that have allocated additional funding towards science like South Africa are currently making progress in all sectors of the economy.

Rugut called for internal funding mechanism as opposed to external support adding that science and technology are key drivers to development globally.

The official noted that technology such as biotechnology is transforming business practices across the globe and Africa also needs to tap from it.

"These technologies have the power to better the lives of poor people in Africa through internal development breakthroughs," he added.

He said that continent stand to benefit from technological and scientific revolutions once strategies are in place to help guide the development in agriculture, education, infrastructure and health.

Rugut said the continent is likely to achieve its global development goals once a sustainable development plan that includes technological development and technology transfer is adopted.

"Today's technological revolutions such as biotechnology puma rihanna blanche femme , nanotechnology and telecommunication are successful because the countries that developed them have proper strategic funding plans," he added.

He noted that once the government increases fundi. Cheap Team Finland Jerseys   Wholesale Czech Republic Jerseys   Wholesale USA Jerseys   Wholesale Russia Jerseys   Cheap Jets Jerseys   Cheap San Jose Sharks Jerseys   Cheap Ottawa Senators Jerseys   Cheap New York Rangers Jerseys   Wholesale Pittsburgh Penguins Jerseys   Wholesale Tampa Bay Lightning Jerseys 


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