Recent content by monade

But the intensity variations caused by the changing geometry of the power transmission may not always be "by far the dominant effect". In some cases, the relative velocity may induce significant intensity/power shifts. Let us consider a star which is far away and moves very fast with respect to...

When the source is moving with respect to the observer, the emitted wave undergoes this well-known frequency shift (Doppler shift). But isn't there also a power shift? Let a source emit a signal (sound or light) with constant power, say P_0, and moves towards the observer with constant speed...