Physics, Astronomy & Cosmology / Re: Is the inverse square law only approximately correct in general relativity?« on: Yesterday at 22:52:52 »
Quote from: Eternal Student
Suppose it was something else like Beta particles being emitted isotropically by the source.If we assume that the particles are traveling at (say) c/10, then there will be an event horizon beyond which these particles will not pass, because space will be expanding faster than c/10 by the time they got there.
- This event horizon will be much smaller than the event horizon for light (which defines the limits of our observable universe).
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