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  1. Sleepy brains make memorable waves

    Precisely timed electrical discharges in two parts of the brains of sleeping rodents offer clues to how slumber may foster memories of recently learned material.

    By Bruce Bower

  2. 19174

    I scuba dive, and I’ve noticed that when the current is brisk through some coral formations, small swirls behave exactly as dust devils. Would the researchers predict that any magnetic phenomena could be produced by silt in salt water? Lindsey Randal Potts San Antonio, Texas Probably not, says William M. Farrell of NASA. Any charges […]

    By Science News
  3. Earth

    Dust devils produce magnetic fields

    Scientists who chase dust devils report that the tiny twisters can produce a small magnetic field that changes magnitude between 3 and 30 times per second.