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  1. Physics

    An Electron Runs through It

    Now that physicists can observe electrons beneath the surface of microchips, they have uncovered electron-flow patterns that are both surprising and visually startling, as well as new details of electron behavior that may lead to faster electronics and quantum computing.

    By Peter Weiss

  2. Sit, Stay, Speak

    If dogs could verbally comment on the scientific study of canine minds and how they really think, it might sound something like this.

    By Bruce Bower
  3. Math

    Pennies in a Tray

    Packing pennies in circular trays can lead to intriguing mathematical complexities.

    By Ivars Peterson
  4. Humans

    From the December 8, 1934, issue

    Goose barnacles, the formation of elements, and the nature of cosmic rays.