xkcd

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XKCD中文站,一个关于浪漫、隐喻、数字、以及语言的线上漫画。

Spectroscopy

Spectroscopy
Although right now I'm more excited about ESPRESSO's radial velocity measurements, so I'm listening to This Kiss, her song about measuring "centrifugal motion" on "a rooftop under the sky".

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