Instagram: @ajnakuri
wxm:
The observer II
nemfrog:
Table of Spectra. Spectrum analysis in its application to terrestrial substances, and the physical constitution of the heavenly bodies. 1872.Internet Archive
Table of Spectra. Spectrum analysis in its application to terrestrial substances, and the physical constitution of the heavenly bodies. 1872.
Internet Archive
lionfloss:
Costa Rica by Chris Henry
Mount Rainier
