While wave source, medium and observer move relatively, there is always a mistake in the wave source determining method, if one adopts the particle-model as usual. This article adopts the wave-model to analyze and study once more the above mentioned topic and the significant physical events such as star aberration experiment and so forth in physics history. We reach a series of new conclusions, for examples, the light propagation needs medium; “invariable theory of light-velocity as well as sound-velocity” is set up conditionally.
【KEYWORDS】:
wave source, medium,ether, relative motion, relativity, star aberration, light-velocity, sound-velocity