Phát âm chuẩn cùng VOA – Anh ngữ đặc biệt: Blacksburg FAA Drone Tests (VOA)

Published on 17/10/2014

Học tiếng Anh hiệu quả, nhanh chóng: http://www.facebook.com/HocTiengAnhVOA, http://www.voatiengviet.com/section/hoc-tieng-anh/2693.html. Nếu không vào được VOA, xin hãy vào http://vn3000.com để vượt tường lửa. Các chương trình học tiếng Anh miễn phí của VOA (VOA Learning English for Vietnamese) có thể giúp bạn cải tiến kỹ năng nghe và phát âm, hiểu rõ cấu trúc ngữ pháp, và sử dụng Anh ngữ một cách chính xác. Xem thêm: http://www.facebook.com/VOATiengViet

Luyện nghe nói và học từ vựng tiếng Anh qua video. Xem các bài học kế tiếp: https://www.youtube.com/playlist?list=PLD7C5CB40C5FF0531

Tech: Luyện nghe nói tiếng Anh qua video: Chương trình học tiếng Anh của VOA: Special English Technology Report. Xin hãy vào http://www.voatiengviet.com/section/hoc-tieng-anh/2693.html để xem các bài kế tiếp.

The Federal Aviation Administration, or FAA, has chosen a university town in Virginia as one of six places to test drones. Drones are aircraft without human pilots. A drone can also be called an unmanned aircraft system, or UAS. The town, Blacksburg, is home to Virginia Tech University. The university has flown and researched unmanned aircraft systems for years. But now, the research has more meaning. Researchers at Virginia Tech send reports to the FAA to assist in the development of national drone rules. The FAA says most business drones cannot operate legally now. The agency plans to announce rules for how drones can share airspace in the United States with major airplane companies. Air information sensors are common on manned airplanes. But researchers at the Virginia Tech University test center have added a sensor to their drones. The sensor records air speed and altitude, the height of the flight. The information is sent through tubes to a computer that examines stability. All of the information is then sent to the FAA. The federal agency may also rule on another device to guarantee greater safety. The device is a special eyewear that lets a person see the flight as if he or she is on the drone. Pilots on the ground then can better direct the drone and keep it on a clear flight path. Researcher Justin Stiltner says drones can be used to do jobs that are uninteresting, dirty or dangerous. Professor Craig Woolsey says farm studies are the main goal. Drone use will not change until the FAA publishes new rules, expected in late 2015.

Enjoyed this video?
"No Thanks. Please Close This Box!"