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sketerpot comments on Justifiable Erroneous Scientific Pessimism - Less Wrong Discussion

14 Post author: Eliezer_Yudkowsky 08 May 2013 08:37PM

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Comment author: sketerpot 08 May 2013 10:27:59PM 5 points [-]

It wasn't until the 1850s that Ångström discovered that elements both emit and absorb light at characteristic wavelengths, which is what spectroscopic analysis of stars is based on, so I'm leaning toward justifiable.