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Contents
- Mystery Meteorite: The case for (and against) a rock from Mercury
- Hard Times for Theorists in a Post-Higgs World: The Large Hadron Collider’s big success leaves no clear avenue for new physics
- In the Eye of the Tiger: Global spread of Asian tiger mosquito could fuel outbreaks of tropical disease in temperate regions
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Read articles, including Science News stories written for ages 9-14, on the
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Contents
- Cool Jobs: Moved by life: Biologically inspired robots travel — naturally
- Infection time: Disease is more severe when it hits in the morning, at least in mice
- Explainer: Our bodies’ internal clocks: Biological clocks determine hunger, sleepiness and other daily rhythms
Searching Authored by Janet Raloff 
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Texas spent 2011 baking. About half the state was gripped by what climate scientists described as an “exceptional” drought, one that goes beyond their categories of severe, or even extreme. Texans are used to dry, but this was worse than the Dust Bowl and drier than the crippling decade-long drought of the 1950s. In fact, it was the driest year since record-keeping began in 1895. As rivers dried up and farmers scrambled to irrigate, many public water systems reported that they were within six months of running out of water. Agricultural extension agents pegged crop and livestock losses at... (p. 22)Published: November 17, 2012; Vol.182 #10
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There are standards — rules, essentially — for how much outdoor air should be cycled through buildings to keep people inside healthy. That circulating air is known as ventilation. And when there isn’t enough new air coming in to push the stale air out, pollutants can build up. One of those pollutants, carbon dioxide, or CO2, increases with every breath we exhale. Indoor-air scientists have always used this CO2 as a harmless yardstick for measuring the staleness of indoor air. A new study now suggests that yardstick might not be so harmless after all.Visit the new Science News for Ki...Published: 2012-10-31 10:33:27Found in: Science News For Kids
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Insufficient ventilation allows exhaled gas to build up indoors, diminishing decision-making abilities.Published: 2012-10-16 12:02:44Found in: Environment
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Eating fish that's low in mercury during pregnancy may reduce the risk that a woman's child shows signs of attention-deficit/hyperactivity disorder.Published: 2012-10-08 17:39:12Found in: Body & Brain and Environment
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View the videos At age 13, Wayne Maddison spied the metallic-green jaws of a spider marooned on a raft of vegetation floating on Lake Ontario. He rescued the young creature, and ultimately made a pet of her and one of her young. Along the way, he fell in love with their family — jumping spiders. That intense affection has never waned. Forty years later, Maddison, now scientific codirector of the Beaty Biodiversity Museum in Vancouver, is among the foremost authorities on these stealthy pouncers of the arachnid world. Last year, Maddison tallied some 175 distinct jumping spider species as h... (p. 32)Published: October 20, 2012; Vol.182 #8
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Most people would never equate downing a well-dressed salad or a fried chicken thigh with toking a joint of marijuana. But to Joseph Hibbeln of the National Institutes of Health, the comparison isn’t a big stretch. New animal experiments by Hibbeln and his colleagues have recently shown that the body uses a major constituent in most vegetable oils to make its own versions of the psychoactive ingredient in marijuana. Called endocannabinoids, these natural compounds play a role in heightening appetite. So overproducing them unnecessarily boosts hunger, similarly to how pot triggers the munchi... (p. 24)Published: October 6, 2012; Vol.182 #7
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It took one of the biggest machines in the world to find one of the smallest particles. Buried beneath the grassy countryside near Geneva, Switzerland, is a giant tunnel in the shape of a circle 8.6 kilometers (about 5 miles) across. There, scientists recently discovered a particle they had been hunting for a very long time: something called the Higgs boson. It helps explain how everything in the universe has developed mass.Visit the new Science News for Kids website and read the full story: Higgs — at last!Published: 2012-09-07 12:42:12
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Her name is P-52. It doesn’t sound all that special. But she broke records earlier this year as the largest wild Burmese python ever found in the United States. At 17.7 feet long (5.36 meters), she weighed a whopping 164 pounds (74.4 kilograms). When researchers at the Florida Museum of Natural History opened her up earlier this month, they found 87 eggs — also a record. Although Burmese pythons are native to Southeast Asia, thousands are now born in the wilds of Florida each year. Visit the new Science News for Kids website and read the full story: Python-palooz...Published: 2012-08-30 11:03:09Found in: Science News For Kids
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A little more than 43 years ago, an American astronaut climbed down the ladder of his lunar landing module — the Eagle — and became the first human to touch the moon’s surface. As he steadied himself, he said: “That’s one small step for a man, one giant leap for mankind.” Around the globe, an estimated 530 million people watched on their televisions as Neil Armstrong uttered those now-famous words. On August 25, this American hero died at age 82. Armstrong and fellow moonwalker Edwin “Buzz” Aldrin briefly became the first ambassadors to another world on July 20, 1969. Setting ...Published: 2012-08-30 12:32:59Found in: Science News For Kids
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Home / News / October 6, 2012; Vol.182 #7 / Infrared light offers promise of laser-sharp cancer therapyLaser technique targets tumors with reduced risk of side effects compared with conventional chemotherapy. (p. 10)Published: October 6, 2012; Vol.182 #7Found in: Biomedicine and Body & Brain
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