74. 2022年3月02日 15:57:44 : qCM1MGBk6M : b0tQaU9NVVc2MVE=
Intermittent ray of light & speed of light (クリ）
Intermittent ray of light is coming from outer space. Observer's motion (against light source) has no effect on incoming ray (wavelength, amplitude, waveform, etc.). Observer's motion has no effect at all. In the equation c = f λ, f and c are variable for a moving observer.