Thread 16785985

Where does the energy of a redshifted photon go?

>>16785985 (OP)
into the bent geodesic that warms the stars and makes the stardust that became you.

>>16785985 (OP)
it becomes Dark Energy

>>16785985 (OP)
I admire OP for his persistence.
I recognize his awareness of the nature of /sci/ and his contribution towards it.
If a board is full of shit then adding more shit to it is the only acceptable solution.

>>16786012
This, in the case of cosmological redshift. If expansion of space reduces the energy of a photon, then the lengthening of a photon's wavelength must dive the expansion of space. Essentially photons can be understood to exert pressure to spacetime

Gravitational redshift/blueshift is an exchange in the kinetic and potential energy of the photon; climbing out of a gravitational well, a photon loses energy, much like a particle with non-zero rest mass would, even if it keeps travelling at c.

Redshift/blueshift due to relative motion can be similarly explained as one explains the kinetic energy of any object

>>16786044
What if space can occasionally contract to release this energy again due to some fluctuation? Then we'd see bursts of energy from time to time, almost like a big explosion of sorts... In a small space...

>>16785985 (OP)
i eats it