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    Mechanics of a Nuclear Meltdown Explained

    Mar 15, 2011 11:11 PM EST

    ... trouble releasing a valve. And they've had trouble maintaining coolant inside, which means leaks." If you have a question on science or technology for Just Ask, send an e-mail to science@newshour.org with "science question" in the subject line or leave it in the comments section below.

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    House Moves to Avert Shutdown for Two Weeks, But Battles Remain

    Mar 02, 2011 01:01 AM EST

    ... finding out these programs that need to go away. And they're expecting us to do the exact same thing. JUDY WOODRUFF: Well, let me ask you the same question I just asked Sen. Durbin. And that is, where is the middle ground here? You and other Republicans in the ...

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    Shuttle Debris, Explained

    Feb 28, 2011 06:55 PM EST

    ... and no tile damage was found. "We didn't even see a scuff," Herring said. If you have a question on science or technology for Just Ask, send an e-mail to science@newshour.org with "science question" in the subject line or leave it in the comments section below.

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    Restoring Ancient Artifacts: What Does it Take?

    Feb 16, 2011 04:30 PM EST

    ... occurred. "It can be a day, months or even years in extreme cases," Jett said. If you have a question on science or technology for Just Ask, send an e-mail to science@newshour.org with "science question" in the subject line or leave it in the comments section below.

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    New Government Guidelines on Salt Intake: Are They Achievable?

    Jan 31, 2011 08:55 PM EST

    ... mean? What they're not saying is, 'Eat less meat, eat less junk food, eat fewer salty snacks and drink fewer sugar sodas. Why not just say that?" If you have a question on science or technology for Just Ask, send an e-mail to science@newshour.org with "science ...

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    What is a Neutrino...And Why Do They Matter?

    Jan 25, 2011 09:15 PM EST

    ... have believed you," Conway said. "Who knows where we'll be 100 years from now." If you have a question on science or technology for Just Ask, send an e-mail to science@newshour.org with "science question" in the subject line or leave it in the comments section below.

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    How Does Salt Battle Road Ice?

    Jan 18, 2011 08:00 PM EST

    ... source of the chlorine, it's logical that road salt would get into the air." If you have a question on science or technology for Just Ask, send an e-mail to science@newshour.org with "science question" in the subject line or leave it in the comments section below.

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    Australia's Flooding Disaster Forces Many to Flee

    Jan 12, 2011 10:20 PM EST

    ... In this part of Queensland, there's not much land still visible. It's become a vast muddy lake instead. Normal life is being stifled. Just ask the Johnson family. They have lost their house and its contents and are now in a Brisbane shelter. WOMAN: The water was up ...

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    How Close Are We to Finding an Earthlike Planet?

    Jan 11, 2011 09:52 PM EST

    ... Marcy says. "It's a very strong hint, but it ain't proof at all." If you have a question on science or technology for Just Ask, send an e-mail to science@newshour.org with "science question" in the subject line or leave it in the comments section below.

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    Birds Tumbling From the Sky; Fish Floating Dead in the Water: How Unusual Are These Animal Die-Offs?

    Jan 04, 2011 11:21 PM EST

    ... us in a direction that may give us more answers as to why this occurred." If you have a question on science or technology for Just Ask, send an e-mail to science@newshour.org with "science question" in the subject line or leave it in the comments section below.