Page last updated at 09:50 GMT, Tuesday, 8 July 2008 10:50 UK

Robots that climb walls

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US scientists have developed robots using the same principles of electro-magnetics that make balloons stick to ceilings after being rubbed.

The robots, developed by a team in SRI's Mobile Robotics and Transducers Programme, are around the size of a remote-controlled car and have caterpillar tracks similar to those on toy tanks.

The technology could be used to enable robots to work in areas that are difficult for humans to go, such as tunnels or outside large buildings.

Courtesy of SRI Mobile Robotics and Transducers Programme

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