Feature

  1. Paleontology

    Turn Your Head and Roar

    The analysis of fossils that preserve evidence of diseases that appear to be similar or identical to afflictions that strike modern animals, including humans, could help scientists better grasp the causes and courses of today's ailments.

    By Sid Perkins
  2. Tech

    Gadgets from the Quantum Spookhouse

    Despite much fanfare about proposed computers based on weird features of quantum mechanics, a whole array of other quantum technologies—navigation devices, chip-making equipment, atomic clocks and more—may also outshine their conventional cousins and be easier to implement than full-blown quantum computers.

    By Peter Weiss
  3. Math

    Knot Possible

    Knot theorists are getting closer to their goal of developing practical procedures for distinguishing knotted curves from unknotted ones.