DO-4U and his friend, HEV-E1 explain the nature of forces and motion, including friction, inertia, and magnetism.

"A photo-illustrated book for elementary readers about robots in film and books. Describes the history of robots in science-fiction, the types of evil and lovable robots and how the powers fictional robots have can come to life in real-life robotic technology. Includes Q & A feature, glossary, index, and further resources"--

"Big Hero 6 features brilliant robotics prodigy Hiro Hamada, who finds himself in the grips of a criminal plot that threatens to destroy the fast-paced, high-tech city of San Fransokyo. With the help of his closest companion--a robot named Baymax--Hiro joins forces with a reluctant team of first-time crime fighters on a mission to save their city"--Publisher.