HS-PS4-2

Evaluate questions about the advantages of using a digital transmission and storage of information.

  1. Tech

    Cell phones on the brain

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

    By Stephen Ornes
  2. 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