| ▲ | gosub100 12 hours ago | |
I agree that photons cannot be distinguished, but how do you reconcile the following: - photons travel at the speed of light in a vacuum - it takes 90k years (or whatever) for a photon to travel from the sun's core to your retina? Ok, the core of the sun is not a vacuum, quite the opposite, but the path is fraught with being continuously absorbed and emitted. It's not one photon travelling at a few km/hr is it? And I don't think photons are reflected in hydrogen, although I have no proof. I just thought reflection was done with things like flat surfaces or mirrors. This is why I said "not the same photon", but I admit I have only YouTube-spectator level knowledge | ||
| ▲ | Jblx2 10 hours ago | parent [-] | |
>And I don't think photons are reflected in hydrogen The hydrogen in the sun isn't regular molecular H2. It is a plasma or maybe even has a liquid metallic phase (depending on temperature and pressure). https://duckduckgo.com/?t=ffab&q=hydrogen+plasma+phase+diagr... | ||