Cherry and plum trees can also add beauty to landscaping even if they never produce fruit.

VOA: special.2011.04.19

And out of that came the recognition that Thompson's plum pudding model is not sustainable in the light of this evidence.

从中我们得出,汤姆生的枣糕布丁原子模型,是不合理的。

麻省理工公开课 - 固态化学导论课程节选

So, they thought about this, and they said, you know, this cannot make sense from the standpoint of the plum pudding model.

他们考虑到这一点，他们说，这是不可能的,如果从布丁模型来考虑的话。

麻省理工公开课 - 固态化学导论课程节选

This was my first glance at plum pudding, and I guess you can see that this must be that positive part -- most of the plums are within that, and you can see all these little raisins or plums in here, that would be that negative charge.

我想你们可以，看到着一定是正电部分,大部分的李子,都在这里面，你们也可以看到,这些小的葡萄干或李子，这就是负电荷。

麻省理工公开课 - 化学原理课程节选

And, he conducted experiments to test the plum pudding model.

他做了一个实验,枣糕布丁模型。

麻省理工公开课 - 固态化学导论课程节选

This is the plum. And, these bits are in motion.

这就是梅子，这些小块在不停运动之中。

麻省理工公开课 - 固态化学导论课程节选

And what he would expect is if this Plum Pudding model is true, nothing's really going to happen to the particles, right, they should go straight through, because if they hit an electron, those are so small.

他所预期的是,如果李子布丁模型，是正确的，alpha粒子,不会发生什么事情,对吧，它们会直接穿过去,因为如果它们撞到电子。

麻省理工公开课 - 化学原理课程节选

So, Thomson came up with a model for the atom due to this, and this is called the Plum Pudding model of the atom, and he was, as we said, English, so plum pudding is kind of a British food.

所以Thompson因此,想到了一个原子模型,他把它叫做，李子布丁模型，我们说过他是英国人。

麻省理工公开课 - 化学原理课程节选

About 10 to 15 years later, another physicist, Ernest Rutherford, actually put this plum pudding model to test, Ernest Rutherford and he did it through studies that he'd been doing on radiation that was emitting something called alpha particles.

因此我们要，在上面再做改进,大概过了10到15年，另外一个物理学家,用实验来检测这个李子布丁模型,他一直从事alpha粒子辐射研究。

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