Vol. 167 No. #3

More Stories from the January 15, 2005 issue

  1. Earth

    Seismic vibes gauge Earth’s crust

    New seismic observations are adding to scientists' knowledge of the thickness of Earth's crust, especially in the Southern Hemisphere.

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  2. Earth

    Big quakes can free grounded icebergs

    Data gathered by equipment installed on an immense iceberg off Antarctica suggest that the ground motions spawned by large, distant earthquakes can free such bergs to float again.

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  3. Earth

    Landscaping stones may pose risks to the environment

    Chemical analyses suggest that planting ornamental rock gardens in some cases may not be doing the environment any favors.

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  4. Earth

    Really hot water

    Hot-water tanks can accumulate radioactive deposits from naturally occurring radioactive material.

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  5. Animals

    Sparrows learn song from pieces

    Young white-crowned sparrows don't have to hear a song straight through in order to learn it; playing the song in mixed-up paired phrases will do.

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  6. Health & Medicine

    Antibiotics could save nerves

    Penicillin and its family of related antibiotics may prevent the type of nerve damage that occurs in people with amyotrophic lateral sclerosis (ALS) and other diseases.

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  7. Astronomy

    Ultimate Retro: Modern echoes of the early universe

    Two teams of astronomers have for the first time detected the surviving notes of a cosmic symphony created just after the Big Bang, when the universe was a foggy soup of matter and radiation.

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  8. Math

    When Laziness Pays: Math explains how cooperation and cheating evolve

    Researchers have developed a mathematical model that helps explain how cooperation and cheating evolve among simple organisms.

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  9. Paleontology

    Reptilian Repast: Ancient mammals preyed on young dinosaurs

    Two nearly complete sets of fossilized remains from 130-million-year-old rocks are revealing fresh details about the size and dietary habits of ancient mammals, hinting that some of these creatures were large enough to feast on small dinosaurs.

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  10. Hands-on Math Insights: Teachers’ mismatched gestures boost learning

    As teachers instruct a child, they typically use their hands as well as their voices, but only certain gestures pack a powerful educational punch.

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  11. Health & Medicine

    Not to Your Health: New mechanism proposed for alcohol-related tumors

    New findings suggest that alcohol encourages blood vessels to invade tumors, supplying nutrients that promote tumor growth.

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  12. Earth

    Living in a Fog: Secondhand smoke may dull kids’ wits

    Millions of U.S. children may have reading deficits because of exposure to secondhand tobacco smoke.

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  13. Animals

    Crow Tools: Hatched to putter

    The New Caledonian crow is the first vertebrate to be shown definitively to have an innate tendency to make and use tools, according to researchers who doubled as bird nannies.

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  14. Health & Medicine

    Phage Attack: Antibacterial virus might suppress cholera

    Bacteria-attacking viruses that infect bacteria hold cholera bacteria in check throughout most of the year except during the rainy season when these viruses become diluted.

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  15. Proteins in the Stretch

    Scientists are for the first time getting a feel for how proteins fold and unfold.

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  16. Health & Medicine

    Palm-Nut Problem

    The ancient custom of chewing areca nuts is getting more popular as young Asians take up the habit, but betel-nut chewing has been linked to several types of oral cancer.

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  17. Humans

    Letters from the January 15, 2005, issue of Science News

    Maybe a smoky card game I’m a veterinarian, and, here in west Texas, we see a high occurrence of parvovirus infection in young dogs. It destroys the intestinal villi, allowing gastrointestinal bacteria and their toxins to enter the bloodstream (“Nicotine’s Good Side: Substance curbs sepsis in mice,” SN: 11/6/04, p. 291). I would be very […]

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