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This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To be honest with you, I didnt feel a thing. But many other Scientific American staffers felt the shaking a few minutes before 2 P.M. Eastern time. After checking Twitter

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委内瑞拉发生6.1级地震

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Afghanistan Maps Natural Mineral Resources

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Suddenly we were at the center of things, Anderson told me, 突然之间，我们来到一大堆东西中间。安德森想起当年的情景， gleaming at the memory of it, when I met him and Witzke in their offices on a dismal, rainy morning in Ju