The discussion revolves around the relationship between radiation frequency and temperature, particularly whether the frequency of radiation emitted from a star changes as it travels through areas of different temperatures. Participants explore analogies with water waves to clarify their points.
Participants do not reach a consensus on the initial question regarding radiation frequency and temperature, as there are differing views on the analogy with water waves and the implications for radiation.
The discussion includes assumptions about the behavior of waves in different media and the nature of spacetime, which are not fully resolved. The analogy with water waves introduces complexity that may not directly apply to radiation.
Yes, shallow water waves propagate with a speed that depends on the depth of the water. As they pass over a shallower area, they slow down. As they pass over a deeper area, they speed up. But this does not change their frequency. It changes their wavelength.Brian E said:I read somewhere, that the frequency of waves in water, among other things, depends on the depth of the water. If I have a tank of water and drop a stone in it, it will produce a wavepattern. If I then heated the water up, the water would grow in volume and the depht would increase. In that case, would the frequence of the waves not change.