Uncategorized

  1. Earth

    A Little Less Green?

    Emerging data indicate that use of pyrethroid pesticides, even by home owners, poses significant environmental risks.

    By Janet Raloff
  2. Tech

    Microbial Moxie

    Microbial fuel cells, which take advantage of the fact that some microbes generate electricity when they break down organic matter, could one day power remote sensors, wastewater-treatment plants, and portable devices.

    By Aimee Cunningham
  3. Math

    Math Plus Crime, TV Style

    Math tidbits from the TV show "Numb3rs" inspire commentary and classroom activities.

    By Ivars Peterson
  4. Humans

    From the January 25, 1936, issue

    A giant scoop shovel, a new atom smasher, and making wheat grow better.