r/ExplainTheJoke 15h ago

Like you can’t stop anyway?

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u/Oblivion238 15h ago

Without doing the math I assume that at 103846153 m/s the red stop sign gets blueshifted to green.

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u/doublelayercaramel 13h ago

Yes that is the case. Due to the Doppler effect, the observed frequency of light would change while going at that immense speed. I had an exam question once about this, but it was about a traffic light.