a robot called nomad took a two-month hiking trip over a desert in Chile.
its job was to collect and send back scientific data.
Like robo-roach, nomad carried a video camera.
The camera would scan the landscape.
Then the images were converted to waves and sent by satellite to a control center 5,000 miles away, in Pittsburgh, Pennsylvania.
At the control center, a computer changed the waves back into an image and display it on a large screen