Vol. 157 No. #12
Archive Issues Modal Example

More Stories from the March 18, 2000 issue

  1. Good Readers May Get Perceptual Lift

    The ability to hear and see rapidly changing stimuli may underlie reading skills, raising the possibility of new approaches to reading instruction.

  2. Health & Medicine

    Olfactory cells aid spine healing in rats

    Injections of olfactory ensheathing glial cells from the brain help severed spinal cords heal in rats.

  3. Humans

    Message in DNA tops Science Talent Search

    A project on encrypting words within a strand of DNA won the top prize at the Intel Science Talent Search.

  4. Chemistry

    Power cells find uses for fossil fuel

    A new fuel cell that runs on hydrocarbons such as natural gas, butane, and diesel instead of hydrogen could be an efficient, practical way to generate power without pollution.

  5. Physics

    Soft crystal shows off its many new facets

    Experiments with a liquid crystal may confirm the 50-year-old prediction that a nearly unlimited number of facets of different orientations can simultaneously decorate a crystal surface.

  6. Tree pollination needs male-only rot

    A fungus that attacks only the male flowers on the chempedak fruit tree seems to be the edible reward for pollinators—the first fungus discovered to play such a role in pollination.

  7. Astronomy

    Spacecraft sounds out the sun’s hidden half

    By detecting sound waves that have traveled through the sun, two physicists have for the first time found a way to view disturbances on the sun's hidden half, providing a glimpse of stormy weather patterns a week to 10 days before they come into view.

  8. Earth

    Plants seen as unpredictable carbon sponge

    Changing land-use practices—especially in forests, croplands, and fallow areas—appear to play a far bigger role than anticipated in determining how much carbon gets removed from the air by vegetation.

  9. Agriculture

    Cocoa yields are mushrooming—downward

    A mushroom epidemic in Brazilian cacao trees, which has cut the production of cacao by 25 percent in 5 years, may be treatable with another fungus.

  10. Agriculture

    Apple pests stand up to antibiotics

    Scientists are concerned about new forms of antibiotic resistance cropping up in fire blight—a deadly disease of apple trees.

  11. What’s learning to a grasshopper?

    Learning the taste of nutritious food pays off in a boost to fitness, even for a grasshopper.

  12. Bacteria make locust-swarm signal

    A pheromone that helps drive locusts into a swarm comes from bacteria in their gut.

  13. Over there! Eat them instead!

    An ant will ignore a single golden egg bug and attack a mating pair, a choice that may explain why singles hang around pairs.

  14. Wash that mouth out with bacteria!

    Genetically engineered bacteria may stop tooth decay by replacing the ones in the mouth that destroy tooth enamel.

  15. Earth

    Undersea volcano: Heard but not seen

    The search is on for an undersea eruption near the Japanese volcanic island chain.

  16. Earth

    Ice age forest spruces up ecology record

    Scientists have recently discovered a 10,000-year-old forest buried in the sand in Michigan.

  17. Physics

    Photon-in-a-box slings atom into orbit

    A single photon confined to a tiny, mirror-lined cavity becomes electrically strong enough to swing an atom in loops.

  18. Physics

    Neon gives healthy glow to reactor

    Preferring neon to nicotine, magnetic-fusion reactors called tokamaks get a performance boost from puffs of the noble gas.

  19. Health & Medicine

    Chocolate Hearts

    Preliminary studies indicate that moderate consumption of chocolate products may offer cardiovascular benefits.

  20. Chemistry

    Molecules Leave Their Mark

    A material etched with tiny, carefully shaped pores can act like an artificial enzyme, cell membrane, or receptor.