'(Jimmy of the Clue Crew with robot "Grace" at Carnegie-Mellon University in Pittsburgh)  One of the ways Grace avoids obstacles is by scanning with this narrow beam of light'
laser
SCIENCE & TECHNOLOGY: One of the ways Grace avoids obstacles is by scanning with this narrow beam of light
One of the ways Grace avoids obstacles is by scanning with this narrow beam of light
One of the ways Grace avoids obstacles is by scanning with this narrow beam of light
SCIENCE & TECHNOLOGY
laser
SCIENCE & TECHNOLOGY