Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!watmath!clyde!burl!hou3c!hocda!houxm!houxz!vax135!floyd!cmcl2!seismo!hao!hplabs!sri-unix!MJackson.Wbst@XEROX.ARPA
From: MJackson.Wbst@XEROX.ARPA
Newsgroups: net.physics
Subject: Re: pulsing large objects
Message-ID: <795@sri-arpa.UUCP>
Date: Tue, 12-Jun-84 16:27:00 EDT
Article-I.D.: sri-arpa.795
Posted: Tue Jun 12 16:27:00 1984
Date-Received: Thu, 14-Jun-84 23:47:53 EDT
Lines: 13


	"I mentioned before that a giant lens could cause the appearance 
	of a (light-year-wide) simultaneous flash (ie, a light-year-wide
	glass lens) for an observer in a particular position.  Does anybody 
	know if the same could be true of a gravitational "lens"?
	--JoSH"

No reason why not; if the gravitational "lens" is producing more than
one apparent object, *and if the path lengths/light travel time are the
same*, the separated images would appear to flash together.  This would
only be true for a *very* specific set of positions, of course.

Mark