All Questions
3
questions
0
votes
0
answers
36
views
Changes to an EM-wave that is propagating in an inflating space
I am trying to get an easier picture of what happens to an em-wave considering space expansion. My question is: If a star in a non-inflating space emits light recorded at a certain distance of the ...
2
votes
2
answers
244
views
What happens when the wavelength of light becomes as large as the observable universe? [closed]
Say the wavelength of a photon became so large that it approached the size of the observational universe. Does something unexpected happen?
3
votes
1
answer
457
views
Can the wave length of a photon be stretched out caused by expansion of spacetime? [closed]
Strictly speaking perhaps it is not right to say that a photon is a wave so its wave length can't be stretched out; a photon is actually just a point. So is its wave property only a relativistic ...