A pimply teenager walked us through “The Easiest 10-Minute Rubik’s Cube Lesson,” demonstrating specific processes to tackle each side. Over and over, I fumbled the righty and lefty algorithms.

NPR's Ailsa Chang talks with Matthew Petrohay about his team's undergraduate project at Purdue University. They built a robot that set a new world record for shortest time to solve a Rubik's cube.