I was thinking about how the expansion of the universe streches light waves so the most distant gallaxies appear red (the longer end of the visible light wavelengths). if a gamma wave (or any short wave) was sent away from a distant gallaxy would it be streched to the point that it turns into visible light? and so are we actually seeing a shorter wavelengh waves when we see these red distant gallaxies ... and to continue the radio waves that we recive from further back in our universes time.

 

I was also thinking that without the streching of space would these waves even have a wave effect? perhaps the stretching of space makes the wave effect and without it stretching we would have a pure .. um ?stream of photons? is that right?

 

anyway just a thought, I don't have a great scientific knoledge and just wanted to see if this was an interesting idea or a stupid one

Yes, the wavelength would be stretched. That's why the thermal background of the big bang, which was quite hot, is in the microwave region region and now at 2.7K

II was also thinking that without the streching of space would these waves even have a wave effect? perhaps the stretching of space makes the wave effect and without it stretching we would have a pure .. um ?stream of photons? is that right?

 

 

No. All particles travel like waves, including photons.

Edited March 27, 201114 yr by I ME