And several years later these two graduate students at Leiden by the name of Goudsmit and Uhlenbeck proposed that the electron in fact spins.
几年之后,两个莱顿的学生,古德米斯特和乌伦贝克,提出电子其实是在自旋的。
And the third fact that we need to keep in mind is that spins remain parallel prior to adding a second electron in any of the orbitals.
第三个事实是我们需要记住在,每个轨道加入第二个电子之前,自旋保持平行。
Even though a hard drive spins at 7200 times per minute or even faster, that's relatively slower than the speed of light.
即使一个硬盘驱动器的转速达到每分钟7200次,甚至更快,仍然比光速慢。
It doesn't simply orbit the nucleus, but as it orbits it spins.
它并不只是简单地绕原子核旋转,而是同时进行公转和自旋。
That makes sense because we know that every single electron has to have its own distinct set of four quantum numbers, the only way that we can do that is to have a maximum of two spins in any single orbital or two electrons per orbital.
那个讲得通,因为我们知道每一个电子,都有它自己独特的量子数,我们能做的唯一方式是,在任一单个轨道中最多有两个自旋电子,或者每个轨道有两个电子。
Some of the signals control a motor which spins metal-coded platters.
一些信号控制一个用于,金属编码磁盘的旋转。
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