
Ears looking at you: It seems to glare
like a hornet's eye, but this intricate moiré is actually a robot's
ear. Twenty-four such disks surround the top of the robot, a squat contraption
bearing a rough resemblance to R2D2, which resides in the robotics and
vision systems lab in the Egan Center, run by electrical and computer engineering
professor Jill Crisman. Dubbed an ultrasonic ranger, the robot uses sonar
as a navigational guide.
Photograph by David Leifer