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Who needs a doberman? A team of students from Marin County Day School built a mobile robot with a sentry gun that responds to its environment. It works in automatic mode or by remote control, and features omnidirectional wheels and infrared sensors. It’s a work in progress, and the Parker, Dylan, James, and Ben are already figuring out how to improve nearly every component.

Nathan Hurst

Nathan Hurst is an editor at MAKE. He loves anything having to do with science or bicycling. He tweets as @nathanbhurst.

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