And that's his diffraction picture.

这是一张他得到的衍射图像
That's what you'd see on that--

这就是你们将会看到的图像
remember there was that round CCD plate that's on this new machine?

还记得那个新机器上的CCD圆盘吗
You might get a pattern that looked sort of like that.

你们能从上面看到的也大概如此
That was copper sulfate in 1912.

这是1912年得到的硫酸铜的衍射图像
But the real breakthrough by was William Lawrence Bragg,

但是真正的突破还得归功于布拉格
who was 22 years old.

彼时的布拉格才22岁
He had just graduated from Cambridge University

他刚刚从剑桥毕业
when he determined the structure of a crystal

想要用劳厄的X光衍射图像
using Laue's x-ray diffraction pattern.

找出一种晶体的结构
So he figured out how to go the other way,

他找出了一种逆向推断的方法
to go from the x-ray's scattered pattern

能够从X光的衍射图像倒推