The first photograph of the Sun was made by Léon Foucault and Hippolyte Fizeau on 2 April 1845 in Paris, France. Hippolyte Fizeau, Léon Foucault - http://time.com/3807904/first-photograph-of-the-sun/

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   Project Gutenberg (gutenberg_org@mastodon.social)'s status on Thursday, 19-Sep-2024 11:54:33 JST Project Gutenberg

   French physicist Léon Foucault was born #OTD in 1819.

   He is best known for his demonstration of the Foucault pendulum, a device demonstrating the effect of Earth's rotation. With Hippolyte Fizeau he carried out a series of investigations on the intensity of the light of the sun, as compared with that of carbon in the arc lamp, and of lime in the flame of the oxyhydrogen blowpipe. His is one of the 72 names inscribed on the Eiffel Tower.

   https://en.wikipedia.org/wiki/L%C3%A9on_Foucault

   #physics #optics #mechanics