In one activity, children try to get a robot arm to pick up a block and place it in a cup.

VOA: special.2010.07.28

A second competition involved building a robot that could travel on uneven surfaces, move objects with unusual shapes and withstand physical stress.

VOA: special.2009.04.24

A robot would then pick up rocks and soil, and send them back to earth for testing.

VOA: special.2010.05.25

He could be as hard as a robot, or as smooth as liquid.

VOA: special.2009.07.05

Kevin's mother thinks the robot has had a calming influence, helping her son get along better with his friends.

VOA: special.2009.12.17

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

A recent story in a local agricultural newspaper said the first robot cost one hundred seventy-five thousand dollars.

VOA: special.2009.05.12

Another robot is designed to move and turn in a way that is similar to the Mars rovers.

VOA: special.2010.07.28

Mr.Mack also says developments in artificial intelligence could lead to a future where disabled patients could be cared for by a voice-activated robot.

VOA: special.2011.01.18

But first,we report on a "sporty" international competition in robot building.

VOA: special.2009.04.24

"On station one,we have robot arms. And what happens is the robots have different joints like a human arm -- one at the shoulder,one at the elbow, wrist and then a claw.

VOA: special.2010.07.28

Cosmobot is a therapy robot.

VOA: special.2009.12.17