Uncategorized

  1. Nurture Takes the Spotlight

    What a person eats, what chemicals he or she is exposed to, and other features of a person's environment chemically modify chromosomes, thereby changing how genes are ultimately expressed.

    By Christen Brownlee
  2. Math

    Folding Perfect Thirds

    Origami provides a hands-on way to explore mathematical concepts. For more math, visit the MathTrek blog.

    By Ivars Peterson
  3. Humans

    From the June 13, 1936, issue

    A giant spectrographic camera and an electric fencing judge.

    By Science News
  4. Tech

    How Products are Made

    What does it take to manufacture an accordion or a zipper? Organized alphabetically by product name, this intriguing Web site provides details on how a wide variety of everyday and basic products are made.