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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 ...
Janko Bradvica's user avatar
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?
Lachlan Sneff's user avatar
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 ...
Marijn 's user avatar
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