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> light propagates forever .... Only in recent years have we managed to prove that assumption true I thought the dark of night was explained by redshift (given
by sethammons 3y ago
> light propagates forever .... Only in recent years have we managed to prove that assumption true
I thought the dark of night was explained by redshift (given distance, it shifts out of the visual spectrum). I guess the infra-red still continues on so that is in line with light propagating forever
- prewett 3y agoIn a static universe there would be no redshift, since the redshift comes from the universe expanding.
- pixl97 3y agoBefore we realized the universe was expanding and redshift occurred there was Tired Light https://en.wikipedia.org/wiki/Tired_light https://en.wikipedia.org/wiki/Tired_light
- Jerrrry 3y agoI am actually intrigued to had never encountered this term when reading Sagan or Hawking or Dawkins - thank you.