Detailed text transcripts for TV channel - DW - 20180528:08:37:00
Wanted to know more. father held from iraq wants to know. how do scientists determine the chemical composition of faraway stars. by the one thing i met split into its color components light forms a continuous spectrum. when light impinges on atoms or molecules a portion of it is absorbed that create black lines a distinct frequency. in some ways its like a fingerprint. all the elements in a store leave their fingerprint in the light spectrum that it emits. these spectra can differ greatly thats ...
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