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Gravitational Redshift/Blueshift Is Indoshift, It Is Caused By Refraction | by Gatot Soedarto | Medium
![What's Doppler Effect? The Doppler Effect was named after Christian Doppler, who came up with the idea in 1842. He thought of the frequency of sound waves when the source or the observer were moving. He said that if one of them were approaching, the ... What's Doppler Effect? The Doppler Effect was named after Christian Doppler, who came up with the idea in 1842. He thought of the frequency of sound waves when the source or the observer were moving. He said that if one of them were approaching, the ...](https://www.ionaphysics.org/lab/Doppler/doppler1.gif)
What's Doppler Effect? The Doppler Effect was named after Christian Doppler, who came up with the idea in 1842. He thought of the frequency of sound waves when the source or the observer were moving. He said that if one of them were approaching, the ...
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Have astronomers ever observed a violet shift like they have blue shifts and red shifts? | Science Questions with Surprising Answers
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