News

  1. Chemistry

    New technique makes water droplets sprint

    A newly developed process encourages water droplets at the hydrophobic center of a wafer to speed outward to a water-friendly edge.

    By Jessica Gorman
  2. Math

    Quirks of video poker

    Even with perfect play over a long time, unfavorable odds and limits on how much a gambler may win per machine make playing video poker into a losing game.

    By Ivars Peterson
  3. Math

    Reassessing an ancient artifact

    The famous Mesopotamian clay tablet known as Plimpton 322 represents an ordered list of worked examples that a teacher would use to prepare a sequence of closely related questions about squares and reciprocals for student exercises.