首页> 外文期刊>Discover >20 THINGS YOU DIDN'T KNOW ABOUT MAGNETISM
【24h】

20 THINGS YOU DIDN'T KNOW ABOUT MAGNETISM

机译:您不知道磁性的20件事

获取原文
获取原文并翻译 | 示例
           

摘要

1. Magnetism is familiar to every fifth grader, but describing it can confound even the most brilliant physicist. 2. Take the case of Richard Feynman. When asked to explain magnetism, he urged his bbc interviewer to take it on faith. After seven minutes of stonewalling, he finally said, "I really can't do a good job, any job, of explaining magnetic force in terms of something else that you're more familiar with because I don't understand it in terms of anything else that you're more familiar with." 3. He did break down and try for a few seconds before abandoning the attempt. Those seconds were packed with oversimplifications: "All the electrons [in a magnet] are spinning in the same direction." 4. But who better than Feynman would have known that not all electrons spin in the same direction? 5. And they don't actually spin. "Spin" is just a physicist's term for the little magnetic north and south poles baked into every electron. The orientation of those poles defines the direction of the electron's (somewhat imaginary) rotation. 6.
机译:磁性是每五年级学生都熟悉的,但是描述它甚至会使最聪明的物理学家感到困惑。 2.以理查德·费曼为例。当被要求解释磁性时,他敦促英国广播公司(BBC)面试官相信这一点。在经历了七分钟的阻挠之后,他终于说:“我真的无法做好任何工作,只能用您更熟悉的其他方式来解释磁力,因为我不了解磁力。您更熟悉的其他任何东西。” 3.他确实崩溃了,尝试了几秒钟,然后放弃了尝试。那几秒钟充满了过分的简化:“(在磁体中的)所有电子都朝着相同的方向旋转”。 4.但是,比费曼更好的谁会知道并非所有电子都朝同一方向旋转? 5.他们实际上并没有旋转。 “自旋”只是物理学家的术语,指的是每个电子都有少量磁性的北极和南极。这些极的方向定义了电子(某种程度上是虚构的)旋转的方向。 6。

著录项

  • 来源
    《Discover》 |2011年第6期|p.96|共1页
  • 作者

    REBECCA COFFEY;

  • 作者单位
  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号