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Heads up

Concussions in big-time sports have been making the news, but the athletes most at risk are probably not on TV. They are children.

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Self-healing plastic

Learning from Mother Nature, Marek Urban has been creating plastics that are able to heal their own damage.

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Waking from the nightmare of sleeping sickness

You’ve heard, “Starve a fever,” but what Jim Morris is trying to starve out is African sleeping sickness.

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Dysentery’s life raft

In regions with poor sanitation, amoebic dysentery delivers gut-wrenching misery to about 50 million people worldwide.

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This time, the foe is corrosion

The idea is to preserve the forts’ cultural heritage— including the cannons, artillery platforms, doors, railings, steps, and many small arti­facts now in the park’s museum collection.

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Detectives at the abbey

Roofless for centuries, its upper stone courses have tumbled to the ground, some of its arched windows have collapsed, and other sections of wall seem ready to fall.

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How did those get in there?

The electron micrographs seemed clear enough: Bits of gold had found their way inside living bacteria. But Tamara McNealy could hardly believe what she saw.

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A bit dense

Psychologist Jim McCubbin knew last fall that news of his research had gone viral. Still, he was surprised when it made it to Saturday Night Live.

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Making cars lighter, stronger

With gas prices soaring, the auto industry is looking for ways to save fuel and cut emissions. One solu­tion: a lighter car.

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Probing a mystery at the edge of space

On a clear night in March, five rockets pierce the sky above the coast of Virginia. As the roar of their departure fades, they grow ever smaller and disappear into darkness.

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