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Robot dog could sniff out profits for farmers

BBC
Summary
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A gamma ray detector mounted on a robot dog is being used to assess soil quality.

Farmer Malcolm Barrett hopes the technology could make farms more profitable.

Robot dogs could also be used to examine hard-to-reach places such as hills and hedgerows.

The robot dog has a top speed of 5 m [ 16ft] a second and weighs 15kg [ 33 lb].