And in the end, when it's at equilibrium, and you look and you'd make a measurement, right, you could do spectroscopy.
当他处于平衡状态的时候,你可以做测量,比方说做光谱分析。
He measured the line spectra of atomic hydrogen.
测量了氢原子的线光谱。
First there was the observation by Michelson who back in the late 1880s had done very precise interferal metric measurements of the hydrogen lines and had observed that the 656 nanometer line 3 associated with the transition of n equals 3 to n equals 2 was, in fact, a doublet.
首先是麦克逊,在1880年底的观察,他以公制单位对氢原子的光谱线,作了准确的,无其他因素干扰的,测量,发现当n值由3变为2时,会同时得到波长为656纳米的谱线3,实际上是有两条线。
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