fossilesque@mander.xyz to Physics@mander.xyzEnglish · 7 个月前Does light itself truly have an infinite lifetime?bigthink.comexternal-linkmessage-square1fedilinkarrow-up126arrow-down10cross-posted to: hackernews@lemmy.smeargle.fansjingszo@lemmy.world
arrow-up126arrow-down1external-linkDoes light itself truly have an infinite lifetime?bigthink.comfossilesque@mander.xyz to Physics@mander.xyzEnglish · 7 个月前message-square1fedilinkcross-posted to: hackernews@lemmy.smeargle.fansjingszo@lemmy.world
minus-squareRaxiel@lemmy.worldlinkfedilinkarrow-up4·7 个月前That was an enjoyable read. At the end I couldn’t help thinking about Penrose’ cyclic conformal cosmology, in that a universe with only massless photons, distance becomes meaningless.
That was an enjoyable read. At the end I couldn’t help thinking about Penrose’ cyclic conformal cosmology, in that a universe with only massless photons, distance becomes meaningless.