Why is the Sky Blue? Explanation by Philip Plait

„If a little kid ever asks you just why the sky is blue, you look him or her right in the eye and say, 'It's because of quantum effects involving Rayleigh scattering combined with a lack of violet photon receptors in our retinae.'“

Philip PlaitPhilip Plait explains the blue color of the sky due to Rayleigh scattering and the lack of receptors for violet light in the retina.
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Philip Plait is a well-known astronomer and science communicator, famous for his critical approach to pseudoscientific topics.

Scientific explanation of the sky's color phenomenon through Rayleigh scattering and retinal function, explained by astronomer Philip Plait.


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Philip Plait is an American astronomer, science communicator, and author who runs the popular science website Bad Astronomy. He advocates for evidence-based science and is known for his critical stance against conspiracy theories and pseudoscience.

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