Vol. 157 No. #1
Archive Issues Modal Example

More Stories from the January 1, 2000 issue

  1. Physics

    Computers Crunch Quantum Collisions

    Physicists have mathematically described what happens when an electron collides with a hydrogen atom, accomplishing a longstanding goal.

  2. Earth

    Smoggy Asian air enters United States

    High concentrations of ozone from Asia reach the United States.

  3. Mom’s eggs execute Dad’s mitochondria

    Sperm may tag their own mitochondria for destruction inside the fertilized egg.

  4. Chemistry

    Antibiotics may become harder to resist

    Drug designers have developed new tactics to make it harder for bacteria to survive exposure to antibiotics.

  5. Physics

    Time’s arrow may make U-turns in universe

    Time may run backwards for isolated chunks of matter in our universe and that reversed state could be probed gently from the forward-going realm without disturbing the time arrow.

  6. Health & Medicine

    Stem cells repair rat spinal cord damage

    Using embryonic stem cells from mice, researchers restored some movement in paralyzed rats that had undergone a crippling spinal injury.

  7. Animals

    Male bats primp daily for odor display

    For the first time, scientists have described the daily routine of male sac-winged bats gathering to freshen the odor pouches on their wings.

  8. Earth

    Corals keep eruption record

    Dust from a giant eruption is lodged within Florida coral.

  9. Earth

    Taking a mountain’s measure

    A survey of Mount Everest alters its official elevation to 29,035 feet.

  10. Earth

    Wretched weather sealed explorer’s fate

    Unusually low temperatures hindered Robert Falcon Scott's polar expedition in 1912.

  11. Antioxidants may help cancers thrive

    By curbing a natural process that rids the body of damage, antioxidant vitamins can aid cancer growth.

  12. Health & Medicine

    The brew for a slimmer you

    Green tea contains a compound that triggers the body to burn more fat.

  13. Materials Science

    Small-scale glues stick to surfaces

    Tailored molecular glues can connect together tiny particles for nanotechnology applications.

  14. Materials Science

    Impurity clouds from all sides now

    For the first time, scientists have obtained detailed, three-dimensional images of line defects in steel.

  15. Physics

    Matter waves: Be fruitful and multiply

    For the first time, physicists induced atoms to amplify a selected matter wave in a manner analogous to a cascade of photons amplifying the characteristic electromagnetic wave of an optical laser.

  16. Humans

    An Artist’s Timely Riddles

    A team of researchers demonstrates that there may be much more to the art of Marcel Duchamp than meets the casual, or even critical, eye.

  17. Chemistry

    The World of Wine

    Improved analytical instruments and powerful computers are now enabling scientists to better determine a chemical fingerprint for products from different wine-producing regions.