I don't think the quote is a good description at all. A black hole is an entity which is sufficiently dense that there is a region around it (bounded by the event horizon... which itself isn't a physical thing) where the escape velocity is greater than c. Really, that's all. Every visual aspect of a black hole that we observe takes place outside the event horizon, and in almost all cases can occur (or a similar phenomenon can occur) around any sufficiently dense body, not just a black hole.From the link posted just above: "You can roughly think of a black hole as a star that traps all of its light". I like the "its" light. We normally read that "even light" can't escape a black hole, but saying "its" own light makes me wonder further. For instance gamma-ray bursts generated when black holes form (provided it is indeed the case), appear to last just a few seconds; but could it be that they last much longer but simply stay trapped? Might newborn black holes shine in powerful gamma-rays for a while but hold them back? Not sure if this makes any sense but it's a nice idea to entertain!
Statistics: Posted by Chris Peterson — Tue May 07, 2024 5:19 pm — Replies 7 — Views 291
