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Your search has returned 34 articles:
  • News

    The Little Chill: Tiny wind generator to cool microchip hot spots

    Technologists cramming more and more transistors onto microchips face a common problem: too much heat. To make computers chill, manufacturers typically outfit hot chips with heat sinks, whose fins release heat into a stream of air.

    Now, a team of university and industrial engineers has created a prototype, microscale air pump that they say could be fabricated with the techniques used to...

    11/08/2006 - 12:10 Technology
  • News

    Birds Beware: Several veterinary drugs may kill scavengers

    Scavenging birds worldwide could be at risk of accidental poisoning from carcasses of livestock that farmers had dosed with certain anti-inflammatory drugs, according to a survey of veterinarian records.

    The work grows out of discoveries in the past 2 years that several Gyps vulture species have almost vanished from India and Pakistan because residues of the anti-...

    11/08/2006 - 11:46
  • News

    New eye on the sun

    Why is the sun's outer atmosphere so much hotter than the star's roiling interior? Astronomers hope that the recently launched Hinode spacecraft, which has begun staring at the sun with a trio of telescopes, will help solve that puzzle.

    Images taken during the testing phase of the Hinode mission, a Japanese-British–U.S. collaboration, have examined...

    11/08/2006 - 11:20 Astronomy
  • News

    Hot, Hot, Hot: Peppers and spiders reach same pain receptor

    The burn of hot peppers and the searing pain of a spider bite may have a common cause. New research suggests that molecules in hot peppers and in a certain spider's venom target the same receptor on nerve cells.

    Several years ago, scientists identified a channel on neurons that's opened by capsaicin, the molecule responsible for peppers' burn. Follow-up research showed that this channel...

    11/08/2006 - 11:02
  • News

    See How They See: Immature cells boost vision in night-blind mice

    Transplanted retinal cells can restore some vision in mice with degenerative eye disease, experiments show. The new findings could point the way toward treatments for several forms of progressive blindness, including macular degeneration, which affects an estimated 6 million people nationwide.

    For years, researchers have aimed to transplant stem cells to replace light-...

    11/08/2006 - 10:29 Biomedicine