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  1. Tech

    Silicon chips land a lasting laser

    The first microchip-size silicon lasers promise to boost the maximum speeds of ordinary computers and electronic gadgets.

    By Peter Weiss
  2. Tech

    Remembering, on the cheap

    A new type of cheap plastic memory bit that stays set even when electrical power is off could facilitate the spread of flexible, radio-equipped tags as price tags, identity labels, and surveillance sensors.

    By Peter Weiss
  3. Health & Medicine

    Tungsten-alloy shrapnel might cause cancer

    Wounds caused by shrapnel comprising tungsten alloyed with nickel and cobalt cause cancer in rats, raising questions about the wisdom of using tungsten in munitions.

    By Nathan Seppa
  4. Animals

    Picky-eater termites choose good vibes

    Good vibrations may have a lot to do with which pieces of wood a termite attacks.