标签：电磁感应 相关文章
Motional Induction Last time, we talked about motional induction , a phenomenon by which the ocean generate s a magnetic field. It works like this: earth has its own magnetic field. The ocean has plenty of charged atoms in it, in the form of dissolve
发表于:2019-01-26 / 阅读(57) / 评论(0)
英语听力文摘 English Digest
英语听力文摘 English Digest
Science and technology 科学技术 Launching aircraft 发射飞机 Proof by induction 让电磁感应来验证 In the future, airliners could be catapulted into the sky by electric motors 将来，会用电动机将客机弹射到天空中 READERS o
发表于:2019-02-03 / 阅读(87) / 评论(0)
经济学人科技系列
经济学人科技系列