He says that, when researchers changed the magnetic field, the butterflies were no longer able to find their way.

VOA: special.2010.04.27

That is we make animation file when you put the current to the coil of the field, getting established magnetic field.

即通过制作动画效果,当你将电流,输送到线圈上，形成磁场。

麻省理工公开课 - 媒体、教育、市场课程节选

who conducted the experiment of hydrogen emission spectrum in a magnetic field.

塞曼做了一个,磁场中的氢原子光谱实验。

麻省理工公开课 - 固态化学导论课程节选

For example, the hall prove to measure the magnetic field of a crack caring club.

比如，他们准备测量,某个地方的磁场。

麻省理工公开课 - 媒体、教育、市场课程节选

You've got a magnetic field, maybe even magnetic susceptibility, the electric field. We're not going to worry about these magnetic fields or electric fields in this class So, pretty much we're going to focus on this set of variables here.

你也会引入磁场，或许甚至磁化率，以及电场，我们这堂课不需要关心,这些磁场或,电场之类的东西,基本上我们只关注,这里的一组变量。

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And what can happen is that this cartoon shows that if you put a magnetic field on liquid oxygen, that liquid oxygen would be drawn towards the magnetic field.

能够发生的就是,在动画里有所体现,如果你把液氧放在磁场中，液氧会被吸起来,朝着磁场的方向。

麻省理工公开课 - 固态化学导论课程节选

And when you turn the current off, the magnetic field collapses.

当你切断电流，电磁场就消失了。

麻省理工公开课 - 媒体、教育、市场课程节选

For example, one of the experiments we do is measure the magnetic field of current coil, and after we do the experiment, we all have a passive visualization that shows the same experimental set-up, except we add to that.

比如，我们做的一个实验就是,测量电线圈的磁场，在我们做完实验之后，我们都感受到了一个直观化的过程,它展现了同样的实验过程，只是那是我们加的。

麻省理工公开课 - 媒体、教育、市场课程节选

And, furthermore, that the intensity of the splitting was proportional to the intensity of the applied magnetic field.

并且谱线的分裂程度,和实验中所使用的磁场强度,是成比例的。

麻省理工公开课 - 固态化学导论课程节选

And he found line splitting in the magnetic field.

他发现光谱线在磁场中分裂了。

麻省理工公开课 - 固态化学导论课程节选