Vol. 159 No. #4
Archive Issues Modal Example |

More Stories from the January 27, 2001 issue

  1. Math

    Reassessing an ancient artifact

    The famous Mesopotamian clay tablet known as Plimpton 322 represents an ordered list of worked examples that a teacher would use to prepare a sequence of closely related questions about squares and reciprocals for student exercises.

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  2. Math

    Quirks of video poker

    Even with perfect play over a long time, unfavorable odds and limits on how much a gambler may win per machine make playing video poker into a losing game.

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  3. Chemistry

    New technique makes water droplets sprint

    A newly developed process encourages water droplets at the hydrophobic center of a wafer to speed outward to a water-friendly edge.

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  4. Cells have molecule for protein triage

    A molecule called CHIP slates bad proteins for destruction and may lead to heart disease therapies.

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  5. Health & Medicine

    Radiation therapy keeps arteries clear

    Two new studies add to the growing evidence that radiation treatment may keep arteries open longer after angioplasty.

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  6. Health & Medicine

    Found: Mutation for deadly nerve disorder

    Two research teams have discovered the genetic mutation that causes familial dysautonomia, a lethal hereditary disease that causes nervous system damage.

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  7. Physics

    Light Stands Still in Atom Clouds

    Ordinarily in continuous motion, light pulses come to a dead stop in specially prepared atom clouds.

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  8. Physics

    Collider is cookin’, but is it soup?

    By making the densest, hottest matter ever in a lab, smashups between fast-moving nuclei in the Relativistic Heavy Ion Collider are coming closer than ever to reproducing the superhot, primordial fluid that presumably filled the universe immediately after the Big Bang.

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  9. Physics

    Voltage flip turns magnetism on, off

    Researchers in Japan have made a material whose inherent magnetism can be turned off and on electrically, as long as the material, a novel semiconductor, stays ultracold.

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  10. Astronomy

    Cloudy puzzle on Uranus

    Astronomers can’t explain the seemingly ephemeral nature of bright clouds seen on the northernmost sunlit edge of Uranus.

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  11. Astronomy

    Pulsar ages may need refiguring

    New images taken by the Chandra X-ray Observatory confirm that a known pulsar, a rapidly spinning neutron star, was born in a supernova explosion that Chinese astronomers witnessed in 386 A.D. and call into question how astronomers traditionally compute the ages of pulsars.

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  12. Rock guitarist inspires rock hounds

    A team of paleontologists who dug up a new dinosaur recently chose to name their find after singer-songwriter Mark Knopfler, guitarist and cofounder of the rock group Dire Straits.

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  13. Humans

    Explosions, not a collision, sank the Kursk

    Analyses of the shock waves recorded at seismic stations across northern Europe indicate that the Russian submarine Kursk sank due to onboard explosions, not a run-in with another vessel.

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  14. Plants

    Dead pipes can still regulate plants’ water

    Physiologists say they have demonstrated for the first time that dead xylem cells in plant plumbing can control water speed.

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  15. Anthropology

    Rumble in the Jungle

    A new book raises troubling and controversial issues regarding research on a famous South American Indian population.

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  16. The Lives of Pandas

    On a tight energy budget, newborns no bigger than chipmunks grow into roly-poly superstars.

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