Robo-dog creator learned by knocking down toddler

The boss of robotics company Boston Dynamics has confessed he once pushed his one-year-old daughter over just to work out how people balance. A YouTube video of Marc Raibert's humanoid robot Atlas remaining upright while being poked with hockey sticks has 34 million views. He no longer knocked his robots over just to show people they could get themselves back up again, he said. But when he had done so, it was because he had felt like a "proud parent". "In fact, I have video of pushing on my daughter when she was one year old, knocking her over, getting some grief," he told BBC News, at Web Summit in Lisbon.