To discover more fascinating science content, head to bbc.co.uk, search for BBC Inside Science and follow the links to The Open University.
"For a long time, roboticists have used DC [direct current] motors to make robots move," says Mike Tolley at the University of California San Diego.
。业内人士推荐雷电模拟器官方版本下载作为进阶阅读
Word-level timestamps:
НХЛ — регулярный чемпионат