Japanese robot scales Grand Canyon

And breaks world record

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2 June 2008 21:20 GMT / By Katie Scott

It may have had several attempts, there may have been cancellations because of bad weather and, eventually, it took just under 7 hours of nail biting, but a Japanese robot has scaled the Grand Canyon.

The 17cm robot managed to climb 530m up a rope, dangling next to the rocky face of what is one of the great wonders of the world.

And all of this was just to prove the reliability of Panasonic's new Evolta AA batteries, which powered the carbon-plastic robot on his climb.

The batteries have now been entered into the Guiness Book of Records as the longest lasting AA cells.