Uncategorized

  1. Archaeology

    Fire engineers of the Stone Age

    New evidence indicates that people used fires to heat stones in preparation for making cutting instruments at least 72,000 years ago in southern Africa.

    By Bruce Bower
  2. Life

    A gene for a short night’s sleep

    Alterations in a gene called DEC2 lead to a shortened sleep period in people, mice and fruit flies.

    By Tina Hesman Saey
  3. Tech

    Scientists propose lab-grade black holes

    Creating tiny, artificial black holes could help uncover what happens to particles on the edge of full-sized black holes.

    By Laura Sanders
  4. Health & Medicine

    Brain doesn’t sort by visual cues alone

    Blind and sighted people’s brains sort the living from the nonliving in the same way, suggesting this ability may be hard-wired.