单词：optimal flight control system
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Archaeologys taking to the air. Researchers spent a month this summer testing a semi-autonomous unmanned aerial vehiclebasically a semi-autonomous dronehigh in the Andes in Peru. The goal: to scan a colonial town from the 1500s that had been built ov
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Are We Safer Without Pilots in the Cockpit? 如果驾驶舱没有飞行员的话，我们会不会更安全点呢？ Last month, 150 people were killed when Germanwings Flight 9525 crashed in the French Alps. Officials say the co-pilot flew the airpl
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This is Scientific American 60 second Science, I am Sophie Bushwick, Got a minute? Sharing is one of the hallmarks of human behavior: give me a cookie and Im more likely to give you one later. But our bonobo cousins have an odd variation on the pract
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65 航天飞机的飞行准备 DATE=7-4-01 TITLE=EXPLORATIONS #1959 - Preparing Shuttle for Space Flight BYLINE=Paul Thompson VOICE ONE: This is Shirley Griffith. VOICE TWO: And this is Steve Ember wi
科技之光
By Sean Maroney Washington 15 December 2006 Astronauts from the U.S. space shuttle Discovery have successfully rewired half of the International Space Station to run on its permanent power system. VOA's Sean Maroney reports from Washington with deta
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Spraying Insecticide Indoors Reduces Spread of Malaria Researchers in West Africa have shown that spraying insecticide indoors can dramatically reduce malaria transmission. Efforts to develop a malaria vaccine have so far been disappointing, so progr
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