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EarthLake 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.
By Sid Perkins -
PhysicsAn attractive source for spintronics
Discovery may lead to battery that generates magnetic currents
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EarthPterodactyls may soar once more
Paleontologists and aeronautical engineers are designing a reconnaissance drone that will mimic the flight of an ancient flying reptile.
By Sid Perkins -