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#1 2018-10-12 05:46:35

beautygirl
Member
Registered: 2018-04-03
Posts: 363

menace posed by rogue drone flight

China's Sun Yang celebrates after the men's 400m free style final of swimming at the 17th FINA World Championships in Budapest Air Jordan 1 Low For Sale , Hungary, on July 23, 2017. Sun Yang won the gold medal with 3 minutes and 41.38 seconds. (XinhuaDing Xu)
BUDAPEST, July 23 (Xinhua) -- Chinese swimming ace Sun Yang won his third straight title in men's 400m freestyle, while Sarah Sjostrom surprisingly broke women's 100m freestyle world record in the team relay event at the 17th FINA World Championships here on Sunday.


On swimming's opening day in the Hungarian capital, Sun, ranked second in the heat Air Jordan Low For Sale , set himself on the leading position after 150 meters en route to his third straight champion after 2013 and 2015. It was also the first swimming gold medal at the tournament this year.


Sun clocked 3 minutes 41.38 seconds, the fastest time of the year. Australia's Mack Horton, Rio Olympics gold medalist, finished runner-up at 3:43.85. Gabriele Detti of Italy was placed third with 0.08 second behind.


Sun let off all his pressure by roaring and punching water when he saw the results. Forefinger in the air means that he is still the best swimmer around the world in the event.


"It was not about my opponent's lackluster performance. Maybe I just did better today, and training on some details recently has paid off," Sun talked about his morale-boosting victory.


Sun will also compete in 200m, 800m and 1500m frees at worlds Jordan 6 Low For Sale , and he needs to adjust himself quickly before appearing in the 200m heat on Monday morning.


Swimming powerhouse United States kicked off a winning start as they bagged the remaining three golds on Sunday.


In women's 400m freestyle, Katie Ledecky broke the championships record for the second time in a single day, as her time of 3 minutes 58.34 seconds has bettered that of 3:59.06 in the heat.


Her teammate Leah Smith ranked second at 4:01.54. China's Li Bingjie, 15, tasted the bronze at 4:03.25 in her maiden World Championships appearance.


Li, regarding Ledecky as her idol, said that she felt both excited and nervous in the water.


"I felt excited because I have got a chance of competing with my idol. However Jordan 4 Low For Sale , it was just my first World Championships, unavoidably, I felt a bit nervous," she said, adding that she was not totally satisfied with the result.


Team USA also snatched two golds in men's and women's 4x100m freestyle relay, but Sjostrom grabbed more spotlight even though the Swedish team only finished fifth in the women's event.


Sjostrom, on the first baton Jordan 11 Low For Sale , took on 51.71 seconds to break Australian Cate Campbell's previous world record of 52.06 seconds set last July.


The Chinese team, made up of Zhu Menghui, Zhang Yufei, Wu Yue and Ai Yanhan, followed Sweden to finish sixth.


Britain's Adam Peaty, first in men's 100m breaststroke semifinals, was the other athlete that set a new championships record at 57.75 seconds on Sunday. Chinese swimmer Yan Zibei also made into the final.


Ye Shiwen Jordan 1 Low For Sale , London Olympic Games champion, was shocked in women's 200m individual medley, as she failed to secure a final spot after finishing 15th in the semi-finals.


As concerns rise about a security menace posed by rogue drone flights, U.S. government agencies are working with state and local police forces to develop high-tech systems to protect vulnerable sites, according to sources familiar with the matter.


Although the research aimed at tracking and disabling drones is at an early stage, there has been at least one field test.


Last New Year's Eve, New York police used a microwave-based system to try to track a commercially available drone at a packed Times Square and send it back to its operator Jordan Shoes Low For Sale , according to one source involved in the test.


The previously unreported test, which ran into difficulty because of interference from nearby media broadcasts, was part of the nationwide development effort that includes the Department of Homeland Security, the Federal Aviation Administration and the Defense Department, the source said.


The sources were not authorized to speak about the effort and declined to be identified.


Asked about the development of counter-drone-technology, the Department of Homeland Security said it "works side-by-side with our interagency partners" to develop solutions to address the unlawful use of drones. Officials with the Defense Department, FAA and New York Police Department declined to comment.


But the sources acknowledged that efforts to combat rogue drones have gained new urgency due to the sharp rise in drone use and a series of alarming incidents.


The number of unauthorized drone flights has surged over the past year Air Jordan 6 Retro For Sale , raising concerns that one could hit a commercial aircraft during landing or take-off, or be used as a weapon in a deliberate attack, the sources said.


Drones have flown perilously close to airliners, interfered with firefighting operations, been used to transport illegal drugs into the United States from Mexico, and sparked a security scare at the White House, among other incidents.


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But U.S. authorities have limited tools for identifying drone operators Air Jordan 4 Retro For Sale , many of them hobbyists, who violate federal rules that drones fly no higher than 400 feet (120 meters) and no closer than 5 miles (8 km) to airports. One reason for the enforcement gap is that Congress in 2012 barred the FAA from regulating recreational drones.


A system capable of disabling a drone and identifying its operator would give law enforcement officials practical powers to block the flights.


At crowded venues such as Times Square or the Super Bowl, police want to be able to take control of a drone, steer it safely away from the public and guide it back to the operators, who can then be identified, the sources said.


A Reuters analysis of FAA data shows that authorities identified operators in only one in 10 unauthor. Wholesale Jerseys China   Wholesale NBA Jerseys Online   Wholesale MLB Jerseys China   Wholesale College Jerseys China   Soccer Jerseys Free Shipping   Adidas NHL Jerseys China   Baseball Jerseys From China   Hockey Jerseys Cheap   Football Jerseys China   Football Jerseys Free Shipping

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2018-10-12 05:46:35

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