Uncategorized

  1. Earth

    Lake Superior’s ups and downs

    Analyses of trees and other organic material buried in a riverbank near Lake Superior’s northwestern shore shed new light on how much and when the lake level varied soon after the last ice age.

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  2. Physics

    An attractive source for spintronics

    Discovery may lead to battery that generates magnetic currents

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  3. Earth

    Pterodactyls may soar once more

    Paleontologists and aeronautical engineers are designing a reconnaissance drone that will mimic the flight of an ancient flying reptile.

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  4. Life

    Old age causes problems for gut cells

    Intestinal stem cells go awry in elderly flies.