Robot caring for disabled and elderly people

Ballbot is a 1.5m high robot, vibrating lightly on a sphere that looks like a ky. He swayed lightly on the laboratory floor and seemed to be able to fall down anytime.

Robot Ballbot (Image: wral.com)

This aluminum-framed robot looks like a circus animal swinging on a balloon, but is stabilized by active motors that maintain vertical stance.

This is an invention of Carnegie Mellon University's Ralph Hollis who is considered a pioneer in the field of human interaction.

Experts say Ballbot will help care and make friends with the disabled and the elderly in the United States.

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