A little wonder, every day
How Leonardo reasoned about the blue sky
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AI-generated historical reconstruction of Leonardo considering atmospheric blueness through a smoke-and-dark-background observation; not a documentary image or a specific manuscript page.
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In his notes, Leonardo da Vinci considered why the air appears blue. He explained it as sunlight illuminating the atmosphere against the darkness beyond it, and proposed testing the idea with sunlit smoke against a dark surface. This was an early attempt to explain the phenomenon, not a complete modern theory of light scattering.


