Waves and Their Applications in Technologies for Information Transfer

  1. Animals

    A Sense of Danger

    Can animals warn us if an earthquake or some other natural disaster is about to strike?

    By Emily Sohn
  2. Tech

    Electronic paper turns a page

    Changeable ink and battery-powered paper may make textbooks lighter and bring video newspapers into daily use.

    By Emily Sohn
  3. Tech

    Cell phones and possible health hazards

    Radiation from some cell phones appears to kill brain cells in rats.

    By Emily Sohn
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