Science & Society
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ComputingIntel STS finalist’s computer program models social life
Ajay Saini has brought together math and computer science to show how habits spread within social groups. His new computer program could help promote healthy habits.
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Health & MedicineThe dangerous rise of electronic cigarettes
Electronic cigarettes were originally advertised as a way for smokers to wean themselves off of cigarettes. In fact, e-cigarettes are helping hook a whole new generation of young people on nicotine — an addiction that may transition back to tobacco.
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Health & MedicineExplainer: What is a hookah?
Many teens are turning to water pipes as a potentially safer alternative to conventional cigarettes. But they’d be wrong.
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Health & MedicineExplainer: What are e-cigarettes?
New battery-powered devices deliver nicotine, a dangerous and addictive drug.
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EnvironmentBurning to learn
Fires cause billions of dollars of destruction to homes and forests every year. But not all fires are bad, especially for forests. With a better understanding of fire, scientists can both help people prevent dangerous fires — and identify which ones it would be better to let burn.
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Science & SocietyEric Chen wins 2014 Intel Science Talent Search
The Intel Science Talent Search gala on March 11 honored 40 brilliant high school seniors and their research projects. Eric Chen won first place for his computer screening technique that identified new influenza drugs.
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GeneticsWhere Native Americans come from
All tribes seem to derive from the same Asian roots, DNA indicates.
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AnimalsA weekend for the birds
February 14 to 17 is this year’s Great Backyard Bird Count. It offers an opportunity to not only learn about the birds in your neighborhood but also contribute to science.
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ComputingCool Jobs: Paid to dream
Some visionaries use science and engineering to see what our world could — and should — become
By Kellyn Betts -
Science & SocietyHuman ancestors threw spears
Who threw first? Scientists had long believed that ancient people who lived 80,000 years ago were the first to throw spears with stone tips. But the discovery of 279,000-year-old stone spear tips in Ethiopia pushes that date back, and suggests prehuman species hunted with spears too.
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Science & SocietyBigger groups make better tools
As the size of a population grows, so too does its ability to quickly create clever new tools. Lab experiments suggest that connections between people give rise to the new creations.
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Science & SocietyMany teens try alternatives to cigarettes
Teen use of cigarettes has dropped a bit in recent years. But many kids have been turning to other tobacco and tobacco-like products. And which they choose can differ sharply by gender and ethnic group.
By Janet Raloff