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Path: utzoo!watmath!clyde!burl!ulysses!allegra!bellcore!decvax!tektronix!hplabs!nsc!voder!gino
From: gino@voder.UUCP
Newsgroups: net.physics
Subject: Re: Re: "big bang" a big bust?
Message-ID: <571@voder.UUCP>
Date: Mon, 17-Dec-84 17:24:53 EST
Article-I.D.: voder.571
Posted: Mon Dec 17 17:24:53 1984
Date-Received: Fri, 21-Dec-84 00:26:17 EST
References: <85@decwrl.UUCP> <10800012@uiucdcsb.UUCP>, <162@talcott.UUCP> <384@ukma.UUCP>
Organization: National Semiconductor, Santa Clara
Lines: 18

[how long did it take to eat this line, given its length of 16 cm?]

> One might ask whether the "fabric of space"  has  the  same  same
> properties as a piece of cloth, that is, if you pull on one edge,
> does the disturbance propagate or does it affect the entire sheet
> at once?
Actually, the disturbance propagates throught the sheet at a speed v <= c
(in some situations, <= speed of sound in the material).  The speed of
light is not just a good idea - it's the law.

> One way that seems interesting would be to  annhilate  a  certain
> weight  of  matter and measure the gravitic disturbance.
This was discussed here recently.  The weight (mass) is not annihilated, it
is transformed to another state (which may then depart at v == c).  A better
way is to accelerate a mass and look for gravity waves.
-- 
Gene E. Bloch (...!nsc!voder!gino)
Try to understand.