Joseph Norman Lockyer (1836-1920). English spectroscopist and astronomer. Detected and named Helium. Engraving 1889.

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Engraving of Joseph Norman Lockyer

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Size: 3850px × 5447px
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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1836, 1920, 19th, archival, archive, astronomer, astronomy, british, century, english, engraving, helium, historical, history, joseph, lockyer, norman, scientist, spectroscopist