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http://www.sciencenews.org/view/issue/id/8548
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In This Issue
- It’s written all over your face: To potential mates, your mug may reveal more than you think
- Team spirit: Working together, bacteria and other microbes can accomplish much more than they can alone. Now scientists hope to harness that ability by engineering their own microbial consortia.
- For a big view of inner Earth, catch a few…Geoneutrinos
- This week's table of contents
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May 26th, 2007
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A big bully pummeled the infant solar system, first by blasting it with a massive wind, then by exploding nearby, driving shock waves into the fledgling solar system and irrevocably altering its chemistry. (p. 323)
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DNA testing of two sharks confirms an instance of reproduction without mating, adding a fifth major vertebrate lineage to those known for occasional virgin births. (p. 323)
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Sildenafil, the male-impotence drug marketed as Viagra, helps laboratory rodents recovery from circadian disruptions similar to jet lag. (p. 324)
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Trace amounts of the synthetic estrogen used in birth control pills can cause a fish population to collapse. (p. 324)
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The pigment melanin may enable certain fungi to convert dangerous radiation into usable energy. (p. 325)
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Babies 4 to 6 months old can distinguish between two languages solely by watching a speaker's face, without hearing sound. (p. 325)
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High school students from 51 countries gathered in Albuquerque last week to compete for scholarships and other prizes at the 2007 Intel International Science and Engineering Fair. (p. 326)
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Harnessing the sun's rays cheaply and efficiently could address the planet's energy needs. (p. 328)
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The genome of the TB bacterium has small but significant pockets of diversity, giving scientists new targets for preventing and treating the disease. (p. 330)
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Men who experience migraine headaches are somewhat more likely to have heart attacks than are other men. (p. 333)
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Although long thought to be rare, instances in which female chimps band together to kill other females' infants occur fairly regularly under certain circumstances. (p. 333)
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In recent decades, the rate at which oceans in the Southern Hemisphere soak up atmospheric carbon dioxide has slowed. (p. 333)
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People who see specific colors when looking at particular letters possess an unusually large number of connections in brain areas that influence word and color perception. (p. 333)
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Radiation and chemotherapy can destroy a tumor, but they may also indirectly promote metastasis, the spread of cancerous cells to other organs. (p. 334)
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Nail-gun injuries among do-it-yourself carpenters have tripled since 1991. (p. 334)
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With a tweak to their genetic codes, bacteria have been coaxed to follow a chemical trail of a researcher's choosing. (p. 334)
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Physicists have used a novel measuring technique to track the motions of electron spins in a tiny magnet as its polarity flips, with north and south poles changing places. (p. 334)
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(p. 335)
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Book Review: Food Bites: The Science of the Foods We Eat
Review by Dina Fine Maron
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Book Review: Don’t Sleep, There Are Snakes: Life and Language in the Amazonian Jungle
Review by Bruce Bower
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Review by Bruce Bower
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Planet Earth: An Illustrated History
A photographic tribute to the glories of nature, including picturesque landscapes, stunning aer...
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A photographic tribute to the glories of nature, including picturesque landscapes, stunning aer...
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