NPR美国国家公共电台 NPR 2015-12-16

From NPR news in Washington, I am Jeanie Herbst. Defense Secretory Ash Carter is on his way to the middle east to try to persuade US allies there to put more resources into the fight against Islamic State. NPR's Scott Horsley reports the mission come

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Computer scientist Shwetak Patel and his team are developing new sensing systems. The initial focus was really around energy and water monitoring.They built a new generation of smart sensors that monitor electronic interference on a homes power line

CNN 2012-05-04

Hello, I am Carl Azuz, welcome you to a new day and a new month, CNN Students, we are gonna take flight with some California teenagers on the beat, but we are beginning today with an anniversary. Tonight, I come forward to the American people and to

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NPR美国国家公共电台 2013-03-11

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美国科学60秒 SSS 2013-08-05

It's similiar to a pregnancy test: a drop of liquid on a strip of paper causes an easily seen color change. But imagine that kind of simple, cheap technology employed in testing for pollution or health issues anywhere and on the cheap. Researchers at

Keep Fit During the Holidays

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