title: Electrical Stimulation, Ultrasound and Laser Light Handbook
author: Michelle H. Cameron MD  PT
description: Michelle H. Cameron, PT, OCS, MD, Guest Lecturer, Graduate Program of Physical Therapy, Samuel Merritt College; Health Potentials, Owner, A Health Education and Consulting Coompany, Oakland, CA, USA
zlib_text: Posted 5/20/2003 8:48 AM     Updated 5/20/2003 8:48 AM
  Sound technology turns the way you hear on its ear
  By Kevin Maney, USA TODAY
  SAN DIEGO — Rarely is an invention so unique, so visceral and so simple that in 15 seconds most
  people who experience it realize it could alter everyday life.
  Woody
  Norris,
  inventor of
  ultrasound
  technology,
  holds a
  hypersonic
  sound
  speaker.
  ATC
  But that's what happens to just about anyone who steps out to the back parking lot of American
  Technology Corp. (ATC) here for a demonstration of its invention called HyperSonic Sound (HSS).
  Essentially, HSS for the first time does for sound what the laser did for light — intensely focuses and
  channels it so it can travel great distances without dispersing. In the demo, a technician points a speaker
  the size of a cereal box at someone standing 100 yards away. Amid the din of the nearby freeway, the
  technician plays a recording of ice cubes clinking into a glass.
  To the listener, the sound comes across as if it were