Here,he uses a set of buttons attached to a computer to make the silent robot move forward, backward or around in circles.

VOA: special.2009.12.17

Judging from the long lines of people, the robot activities were the most popular at Mars Day.

VOA: special.2010.07.28

On Mars Day, hundreds of people waited for their chance to use robot technology.

VOA: special.2010.07.28