Vol. 163 No. #6
Archive Issues Modal Example

More Stories from the February 8, 2003 issue

  1. Earth

    Dust devils produce magnetic fields

    Scientists who chase dust devils report that the tiny twisters can produce a small magnetic field that changes magnitude between 3 and 30 times per second.

  2. Sleepy brains make memorable waves

    Precisely timed electrical discharges in two parts of the brains of sleeping rodents offer clues to how slumber may foster memories of recently learned material.

  3. Materials Science

    Microscopic glass ribbons provide molecular labels

    A new type of barcode too small to see with the naked eye holds promise for biomedical research, law enforcement, and everyday life.

  4. Cell phones distract drivers, hands down

    Laboratory experiments indicate that using a hands-free cell phone while driving markedly interferes with the ability to maneuver a vehicle safely.

  5. Tech

    Columbia Disaster: Why did the space shuttle burn up?

    The space shuttle Columbia, which tore apart killing all seven of its crew on Feb. 1 just minutes before it was scheduled to land, may have been doomed since its liftoff.

  6. Health & Medicine

    Exonerated? Foods’ acrylamide risks appear low

    A new study downplays the likelihood that people will develop cancer from eating foods naturally tainted with acrylamide, a building block of many plastics and an animal carcinogen.

  7. Bad Sleepers Hurry Death: Snoozing soundly staves off the Big Sleep

    Healthy elderly people who experienced difficulty falling or staying asleep die from natural causes at a much higher rate than those who slept well.

  8. Agriculture

    Bt Cotton: Yields up in India; pests low in Arizona

    Two cotton-growing centers that could hardly differ more—small farms in India and industrial fields in Arizona—provide case studies that show the bright side of a widespread genetically engineered crop.

  9. Humans

    Budget Boosts and Busts: R&D for Defense, NASA garner funding rise

    The President's $2.23 trillion federal budget proposal contains nearly $123 billion to fund federal research and development, an increase of about $8 billion over last year’s proposal.

  10. Health & Medicine

    Mind Numbing: Anesthesia in baby rats stunts brain development

    General anesthetic drugs commonly used in pediatric surgery, when given to baby rats, trigger brain cells to commit a cellular form of suicide that leads to lasting memory and learning deficits.

  11. Catch of the day for cancer researchers

    Scientists are using glowing tumor cells inside zebrafish to study how cancer spreads.

  12. Genghis Khan’s Legacy?

    Genghis Kahn's military success 800 years ago may have spread a particular form of the Y chromosome, one he may have himself carried.

  13. Essence of g

    New efforts to probe the biology of intelligence stir up a long-running controversy over what mental tests actually measure.

  14. Health & Medicine

    Dietary Dilemmas

    Low-carbohydrate diets, such as the Atkins diet, could be more effective for weight loss than low-fat diets are.