MS-PS4-3

Integrate qualitative scientific and technical information to support the claim that digitized signals (sent as wave pulses) are a more reliable way to encode and transmit information.

  1. Tech

    Digital displays get flexible

    Flexible and unbreakable digital displays could soon be for sale, thanks to a new organic transistor made from plastic.

    By Kathiann Kowalski
  2. Physics

    Laser tweezers grab nano bits

    An optical fiber, a bit of gold and a laser make up a new type of tweezers. Scientists may soon use it to pick up and move around individual viruses or proteins.

    By Stephen Ornes
  3. Animals

    Explainer: Tagging through history

    What started as little metal bands have evolved into high-tech devices — some of which rely on satellites to share their findings.

    By Susan Moran
  4. Tech

    Cell phones on the brain

    When an active cell phone is pressed against the ear, the brain gets busier.

    By Stephen Ornes
  5. Environment

    Underwater racket

    The oceans are getting louder, and scientists want to know what that means for marine residents.

    By Emily Sohn
  6. Tech

    Electronic paper turns a page

    Changeable ink and battery-powered paper may make textbooks lighter and bring video newspapers into daily use.

    By Emily Sohn
  7. Tech

    Cell phones and possible health hazards

    Radiation from some cell phones appears to kill brain cells in rats.

    By Emily Sohn