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Path: utzoo!linus!philabs!cmcl2!seismo!uwvax!astroatc!nic_vax!brown
From: brown@nic_vax.UUCP
Newsgroups: net.space
Subject: Re: Speed Of Light
Message-ID: <158@nic_vax.UUCP>
Date: Thu, 9-May-85 12:40:47 EDT
Article-I.D.: nic_vax.158
Posted: Thu May  9 12:40:47 1985
Date-Received: Sat, 11-May-85 08:20:27 EDT
References: <2073@decwrl.UUCP>
Organization: Nicolet Instrument Corp. Madison WI
Lines: 30

> There's something I've never quite understood:
> 
> Consider the following setup:
> 
> \-------/   (Ship #2 going at .9C)	(Laser, at 1.0C)       (Ship #1 at 0.1C)
> |	|			>--> ------------------------	>-->
> | Earth	|----------------------------------------------------	>-->
> |	|  (Laser, going at 1.0C)
> /-------\
> 
[]
Help me net, but light can't go faster than light.  If a laser is fire from
a moving ship, that laser's speed will be 1.0C relative to EARTH.

If, and mean a big IF, a ship could travel at say, 1.5C, then a laser that
was fired would end up being passed by the ship as it fired it.  The laser
probably couldn't even get started as the ship was going faster than the
light it was trying to create.

Another good point, how can anyone see anything inside of a ship that was
going the speed of light or faster?  The whole spectrum would be shifted
so that we couldn't see anything.
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   (!ihnp4!uwvax!astroatc!nic_vax!brown)