147. 2022年11月07日 10:32:12 : dpbtPpv34c : enAvUzR5VGpWU0k=[1]
An Intermittent Ray of Light (クリ)
Imagine that an incoming star light is intermittent (on and off: by human work). An observer is observing this ray of light. It will be certain that observer’s motion (in the light ray direction) does not affect anything of coming ray (intermittency, wavelength, amplitude, waveform, etc). So, in the equation c = f λ, it is f and c that vary for the moving observer.
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