Submitted by LoreCriticizer t3_z53aqr in askscience
eldude2879 t1_ixw1mi9 wrote
Reply to comment by lacgibra in How would one calculate the gravity of a planet? by LoreCriticizer
light behind a galaxy that can be seen because of the mass of the galaxy infront is seen not because of gravity force
as we know photons have no mass so gravity has no effect if you think of it as a force
the space time is bend so the photons get bend with it
lacgibra t1_ixw20m9 wrote
Okay do me a favour, workout a classical problem considering gravity as curved space time. Simple pendulum, compound pendulum, linear Harmonic oscillator two body problem anything.
lacgibra t1_ixw2ey4 wrote
I'm simply saying, I apply gravity as space-time curve when I apply the Einstein's relativity in action. If had explained the question in the first scenario using relativity, I would've mentioned gravity as space time curve
eldude2879 t1_ixw2f7o wrote
well, I am just a simple electrician with some knowledge of Einstein
I admit using Newton is perfectly fine if you dont need super precise
lacgibra t1_iybna3g wrote
Yeah yeah quantum mechanics is wrong too, because it's foundation was laid by classical mechanics.
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