If a photon traveling at c emits another photon (how doesn't matter). How does that second photon travel away from the other at c relative to the first photon without the second photon achieving FTL velocities?
fellow brainlet wants to know, bumpo
>>9105384
To add to this, what does a third observer traveling at no velocity see? Two photons moving at the same rate away from the third observer, moving at different rates away?
>>9105384
mechanically then we'd have two photons occupying the same space ( moving towards their destination at c ), or nearly the same space
now in the quantum world i have to be honest i don't know what would happen but it's possible that the photon may exist in many superpositions, or maybe cancel each other out and somehow remain as just one particle. maybe the fact that photons don't have mass may influence how the superpositions would manifest
>>9105528
Does this change if the second photon manifests outside of the first?
>>9105384
Both photons see the other moving away from them at c. Time slows relative to either photon such that the other never appears to be moving faster than c. See Lorenz transformation.
>>9105441
A 3rd frame will see each photon move away from him at c. Also works out if you do the math with Lorenz transformation.
>>9105656
Photons don't see anything because there is no time passage for them. Space is warped infinitely so that their destination is touching their origin.
>>9105668
But, from the photon's frame of reference the other photon is actually moving away at c, it's just that no time passes in which it's able to do so.
Similarly for an observer, the two would be diverging but at an infinitely slow rate. Either way, nothing untoward happens.
>>9105668
I understand the argument breaks down at c. So use .999... c instead.
Since .999... = 1 that means we can actually travel at c. Relativity btfo.
>>9105384
Relativity is a lie, light travels infinitely fast, what they are really referring to is the speed of a different kind of light.
>>9105800
>the photon's frame of reference
No such thing. Pay attention in class