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Robots are delivering food on this college campus

If you want food delivered to you at Purdue University, you can now have a robot do it. Thirty food delivery robots now roam the Indiana school's campus. The robots use sensors to keep from running into students and statues. Purdue isn't the only university to have food delivery robots, but it is the largest. An outfit called Starship Deliveries manages the program. Purdue President Mitch Daniels was the first customer. "How do you tip a robot?' he asked.

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