Timeline for Can we measure gravitational constant at high accuracy using a black hole?
Current License: CC BY-SA 4.0
4 events
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| Sep 7, 2022 at 21:18 | comment | added | John Doty | @PM2Ring Clever. | |
| Sep 6, 2022 at 17:06 | comment | added | PM 2Ring | I disagree that it's fundamentally impossible, but it's surely not possible in practice. You "simply" need to measure $r_s$ of the BH (eg by determining the photon sphere radius via photon deflection), drop a chunk of matter of known mass into the BH, then measure the new $r_s$. Of course, other sources of gravitational potential must be negligible, and to convert the observer's measurements to Schwarzschild coordinates you have to account for the spacetime curvature in their vicinity (and their velocity). | |
| Sep 6, 2022 at 13:13 | history | edited | John Doty | CC BY-SA 4.0 |
Misplaced don't. Misspelled word.
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| Sep 6, 2022 at 10:05 | history | answered | TimRias | CC BY-SA 4.0 |