The device shows scientists what an object is made of from great distances.

VOA: special.2009.12.30

withdrawal from Afghanistan would likely lead to the Taliban regaining power, and questioned what an expanded U.S.military presence would accomplish.

VOA: standard.2009.10.15

"But you did,and I know what an extraordinary leap of faith that is on your part.

VOA: standard.2009.11.05

"I think they have to have an example like some stars like Landon Donovan on the US national team of the World Cup so they can see what an example is and what they could be like when they grow up and work hard at football."

VOA: standard.2010.06.15

Some eye care professionals say all that screen time has led to an increase in what they call computer vision syndrome.

VOA: special.2011.08.01

The students examine an issue, review what is already known, think about what they have learned and come to some conclusion.

VOA: special.2009.04.30

So,Senator Nelson created an independent nonprofit group called Environmental Teach-In,Inc to help organize what would become an environmental revolution.

VOA: special.2010.04.21

What was there to count? There was only an empty yard and the blank side of the house seven meters away.

VOA: special.2009.08.01

"I think the story in some ways tells us what we want to think of ourselves as an American.

VOA: special.2010.03.08

But salinity is actually an important parameter that gives us an indication of what might be going on."

VOA: special.2011.06.22

ALLEN: " Well,at two o'clock, our billing changes." SECRETARY: "Well, what kind of an act do you do?"

VOA: special.2009.03.09

Just simple things so that way they get to understand what it means to be an American student."

VOA: special.2010.05.27

He also wanted to create what he called a hit factory, an idea he got from working for the Ford Motor Company.

VOA: special.2009.05.11

And I'm Faith Lapidus. What would you like in an English learning mobile app if you could have one designed just for you?

VOA: special.2011.03.22