Vol. 167 No. #5

More Stories from the January 29, 2005 issue

  1. Tech

    Thrifty trucks go with the flow

    Forcing air through strategically placed slits on a tractor trailer results in a major boost in fuel economy.

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  2. Chemistry

    Building artificial cells from scratch

    Scientists have created artificial cells that can live and produce proteins as their natural counterparts do, but can't replicate.

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  3. Tech

    Congealing useful oddballs

    A device for manipulating liquid droplets turns out to have the unexpected ability to fabricate tiny, solid balls with unusual, and potentially useful, patterned structures inside.

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  4. Health & Medicine

    Urine test signals pregnancy problem

    A simple urine test can warn women that they have an increased risk of preeclampsia, a dangerous complication of pregnancy.

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  5. Giardia Bares All: Parasite genes reveal long sexual history

    Sexual reproduction started billions of years ago, as soon as life forms that have nuclei and organelles within their cells branched off from their structurally simpler ancestors.

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  6. Lost Sight, Found Sound: Visual cortex sees way to acquiring new duties

    Brain areas that are usually devoted solely to vision can take on new duties following severe or total sight loss.

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  7. Math

    Sizing Up Complex Webs: Close or far, many networks look the same

    Complex networks, including the World Wide Web, have a common architecture with snowflakes and trees.

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  8. Health & Medicine

    Good Exposure: Contact with babies might lessen MS risk

    People who grow up with younger siblings close to them in age are less likely to develop multiple sclerosis later in life than are people without such siblings.

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  9. Plants

    In a Snap: Leaf geometry drives Venus flytrap’s bite

    Behind a Venus flytrap's rapid snap lies an extraordinary shape-changing mechanism.

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  10. Chemistry

    Hungry for Hydrogen: Microbes in hot springs feed on unlikely source

    Microbes dwelling in Yellowstone National Park's hot springs draw their energy not from sulfur but from hydrogen.

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  11. Humans

    The Heights of School Science: Select student research rises to the top

    Forty high school students have each earned a slot in the final round of the 2005 Intel Science Talent Search.

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  12. Tech

    Matrix Realized

    Devices called brain-computer interfaces could give paralyzed patients the ability to flex mechanical limbs, steer a motorized wheelchair, or operate robots through sheer brainpower.

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  13. Earth

    When Mountains Fizz

    Scientists are finding that the driving force behind a volcanic explosion is the same thing that propels spewing soda pop: bubbles.

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  14. Health & Medicine

    One in a Million

    A 15-year-old girl in Wisconsin has survived a rabies infection without receiving the rabies vaccine, a first in medical history.

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  15. Humans

    Letters from the January 29, 2005, issue of Science News

    Check it out In “Profiles in Melancholy, Resilience: Abused kids react to genetics, adult support” (SN: 11/20/04, p. 323), you report on a study in which it was found that female monkeys raised in a stressful situation drink alcohol to excess only if they possess just the short serotonin-transporter gene. If a positive correlation were […]

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