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US owl-killing experiment raises thorny questions

As he stood amid the thick old-growth forests in the coastal range of Oregon, Dave Wiens was nervous. Before he trained to shoot his first barred owl, he had never fired a gun.

Creating desirable materials requires salt, but not space

(PhysOrg.com) -- When synthesizing specialized materials for energy-packed batteries, the problem is the template. The pattern for self-assembling the highly desired nanometer-sized spheres falls apart, producing irregular ...

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