Grégoire Locqueville on Nostr: nprofile1q…ze5g0 nprofile1q…ufa4k "Even though the journey from horizon to ...
nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqky223zcc4q69d8t0me4vg5uw8mw0yxeukjgvz6h92laqnenr0ajsgze5g0 (nprofile…e5g0) nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqknzsux7p6lzwzdedp3m8c3c92z0swzc0xyy5glvse58txj5e9ztqaufa4k (nprofile…fa4k)
"Even though the journey from horizon to central singularity takes a finite amount of time for the falling observer experiencing it, distant observers never get to see this: the distant observer never sees anything falling inside the event horizon, because this would mean that photons have managed to escape this region for the object to be seen; so what the distant observer sees is that the infalling object's fall slows down as it nears the horizon, and becomes infinitely slow instead of crossing it: this is because photons emitted just before the crossing of the horizon have a harder and harder time reaching the distant observer, and therefore take a longer and longer time to do so—they are said to be gravitationally redshifted to infinity. In fact, from the distant observer's point of view, nothing beyond the horizon really exists, and a physical black hole's mass could be said to consist of the mass of the collapsing star, ever frozen in the last stages of its collapse."
http://www.madore.org/~david/math/kerr.html
"Even though the journey from horizon to central singularity takes a finite amount of time for the falling observer experiencing it, distant observers never get to see this: the distant observer never sees anything falling inside the event horizon, because this would mean that photons have managed to escape this region for the object to be seen; so what the distant observer sees is that the infalling object's fall slows down as it nears the horizon, and becomes infinitely slow instead of crossing it: this is because photons emitted just before the crossing of the horizon have a harder and harder time reaching the distant observer, and therefore take a longer and longer time to do so—they are said to be gravitationally redshifted to infinity. In fact, from the distant observer's point of view, nothing beyond the horizon really exists, and a physical black hole's mass could be said to consist of the mass of the collapsing star, ever frozen in the last stages of its collapse."
http://www.madore.org/~david/math/kerr.html