书籍详情
格式
平装书
页数
24
语言
英语
已发布
Jan 1, 2012
出版商
Picture Window Books
ISBN-10
1404871454
ISBN-13
9781404871458
描述
Greetings! DO-4U the robot here, and I'm hard at work at Worldwide Robotics. I'm conducting experiments to find out about things like pulling, pushing, and friction. Charge your batteries and join me to learn all about forces and motion!