A ‘Roomba’ for weeds

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The inventor of the Roomba robot vacuum, Joe Jones, has come up with something new: a solar-powered weeding robot called the Tertill. It will patrol your home garden daily looking for weeds to cut down. How does it know what’s a weed and what’s a plant? Tertill has a very simple method: weeds are short, plants are tall. A plant tall enough to touch the front of Tertill’s shell activates a sensor that makes the robot turn away. A plant short enough to pass under Tertill’s shell, though, activates a different sensor that turns on the weed cutter. Get your own weed-killing robot for $249 through the Tertill’s Kickstarter . ( Business Insider )

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A ‘Roomba’ for weeds

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