News

  1. Bad Vibrations? Ultrasound disturbs mouse brains

    Prolonged and frequent use of fetal ultrasound might lead to abnormal fetal brain development, a study in mice suggests.

    By Christen Brownlee
  2. Tech

    Glare gives silicon goose bumps

    New experiments show that fluorescent lights cause undesirable bumpiness on the surface of silicon, identifying what may be a previously unrecognized cause of flaws in microchips that could become increasingly important.

    By Peter Weiss
  3. Earth

    Obsidian artifacts can record ancient climate

    The layer of hydrated material that forms on the surface of ancient obsidian artifacts as they age can be used to estimate the temperatures that the artifacts have experienced.

    By Sid Perkins

  4. Blood clot protein is stretchiest natural fiber ever found

    The protein that forms the backbone of blood clots can stretch to several times its own length and then snap back to its original size.