Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site wdl1.UUCP Path: utzoo!watmath!clyde!cbosgd!ihnp4!mhuxn!mhuxr!ulysses!gamma!epsilon!zeta!sabre!petrus!bellcore!decvax!genrad!panda!talcott!harvard!seismo!lll-crg!amdcad!amd!pesnta!hplabs!hpda!fortune!wdl1!jrm From: jrm@wdl1.UUCP Newsgroups: net.misc Subject: A Question Regarding Black Holes Message-ID: <641@wdl1.UUCP> Date: Thu, 22-Aug-85 20:18:59 EDT Article-I.D.: wdl1.641 Posted: Thu Aug 22 20:18:59 1985 Date-Received: Mon, 26-Aug-85 01:04:04 EDT Sender: notes@wdl1.UUCP Organization: Ford Aerospace, Western Development Laboratories Lines: 20 Nf-ID: #N:wdl1:69900002:000:924 Nf-From: wdl1!jrm Aug 22 15:16:00 1985 < Sacrifice to Line Gobbler God > Having failed to receive a satisfactory answer to this from the gurus in net.physics and net.astro.expert, I am now posing the question to net.bizarre: > By definition, the gravitational feild of a black hole is so > intense that not even light or other wavicles with velocity c can escape. > My understanding is that gravity propagates with velocity c. (I believe > this has been proven. Correct?) Does this not imply that, at least as > far as the outside universe is concerned, the black hole has no > gravitational feild? > Further, since everything with velocity <=c is kept within > the black hole, does this not mean that the black hole is undetectable? > Even to the extent that you could pass through one or it could pass > through you and neither would know anything had happened? > Does quantum mechanics affect this? (In terms of "things" > escaping from the black hole.)