A mirage over Paris, France, in December, 1869, showing an atmospheric phenomenon in which reflections of objects appear above the real ones. This happens when a layer of warm air, with its higher refractive index, lies above a layer of cold. Engraving by Camille Flammarion, 1873. Colorized.

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Size: 3595px × 2377px
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Photo credit: © Science History Images / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1869, 1873, 19th, art, atmosphere, atmospheric, camille, century, colorized, engraving, enhanced, flammarion, france, history, illusion, illustration, light, meteorology, mirage, optical, paris, phenomena, phenomenon, print, reflection, refracted, refractive, science, unusual, vintage, weather