Uncategorized
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Health & MedicineVeggies: A radiation shield
Here’s another reason to eat broccoli and related veggies: They protect the body’s cells from killer radiation — at least in rats.
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AnimalsTrue vampires
Forget Count Dracula or Twilight’s Edward and Bella. Many creatures have a true thirst for blood, and here’s why.
By Roberta Kwok -
AnimalsVampires’ gift of ‘blood honey’
A Maryland biologist probes the unusual dining behaviors of a blood-thirsty bat.
By Susan Milius -
Brain‘Study drugs’ can be dangerous
The misuse of these ADHD medicines not only constitutes cheating, but they can become addictive and can mess with your head.
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Health & MedicineMining medicine from poop
Researchers find a much less yucky way to treat people with a common killer infection.
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ChemistryGrape scents repel mosquitoes
Safer than DEET, the new compounds could lead to insect repellents that would be affordable even in poor regions where mosquitoes carry malaria.
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EarthHacking the planet
The big backup plan: Scientists reluctantly consider altering Earth’s climate to head off the catastrophic effects of global warming.
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PlanetsScratching the Martian surface
What’s Mars made of? Volcanic rock, glassy particles and a poisonous rocket-fuel chemical, among other things. That’s the latest from tests by NASA’s Curiosity rover.
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ClimateThe certainty of climate change
How sure are scientists that people are to blame for global warming? “Extremely likely,” says an international panel of climate change researchers in a new report.
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ChemistryCyberspace chemistry earns a Nobel
The achievements behind the 2013 Nobel Prize in chemistry relied on a lot of complex physics. But the computer techniques pioneered by these three men are now saving chemists a lot of work.
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Health & MedicineSleep therapy for fears
Scared? A nap spent inhaling the proper smell might relieve those fears, a study finds.
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ChemistryVitamin can keep electronics ‘healthy’
Vitamin E is among cheap materials that can avoid the zap of static electricity — a discharge that risks destroying sensitive electronic circuitry.