News

  1. Materials Science

    Dribble Quibble: Experiments find that new basketball gets slick

    According to preliminary results from a study at a physics lab, a new basketball for professional players bounces less elastically, veers more when it bounces, and becomes more slippery when damp than does a leather ball.

    By Peter Weiss
  2. Health & Medicine

    Helping Hands: Brief rehab method aids arm activity after stroke

    Stroke survivors who have difficulty using an arm or a hand experience lasting mobility gains after completing an unusual 2-week rehabilitation program.

    By Bruce Bower
  3. Astronomy

    A Swarm of Umbrellas vs. Global Warming: Astronomer thinks small to save Earth

    A trillion miniature spacecraft could provide a giant sunshade for Earth, significantly reducing global warming.