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Path: utzoo!linus!decvax!watmath!kpmartin
From: kpmartin@watmath.UUCP (Kevin Martin)
Newsgroups: net.physics
Subject: Re: C as speed limit
Message-ID: <9692@watmath.UUCP>
Date: Sat, 3-Nov-84 11:18:12 EST
Article-I.D.: watmath.9692
Posted: Sat Nov  3 11:18:12 1984
Date-Received: Sun, 4-Nov-84 04:42:29 EST
References: <1218@ihuxr.UUCP>
Reply-To: kpmartin@watmath.UUCP (Kevin Martin)
Organization: U of Waterloo, Ontario
Lines: 10

>You could say that displacement per unit time becomes a poor measure of
>intuitive speed in the ultrarelativistic region. A bullet with gamma
>equal 2000 won't get to the target much faster than one with gamma equal
>100, but it will hit one hell of lot harder when it gets there!
>		Lew Mammel, Jr. ihnp4!ihuxr!lew

Unless you are riding the bullet, in which case you only have to go 1/20th
as far on the faster bullet due to space contraction, so it takes only
1/20th as long (give or take the difference between .9999*c and .9998*c or
whatever).