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From: cramer@kontron.UUCP (Clayton Cramer)
Newsgroups: net.movies,net.books
Subject: Re: BACK TO THE FUTURE (actually book title request)
Message-ID: <416@kontron.UUCP>
Date: Thu, 25-Jul-85 14:54:44 EDT
Article-I.D.: kontron.416
Posted: Thu Jul 25 14:54:44 1985
Date-Received: Sun, 28-Jul-85 05:34:57 EDT
References: <790@vax2.fluke.UUCP> <768@umcp-cs.UUCP> <1786@aecom.UUCP> <697@daemen.UUCP> <588@usl.UUCP> <1048@trwatf.UUCP>
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Organization: Kontron Electronics, Irvine, CA
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Xref: pepe net.movies:2297 net.books:1149

> In article <588@usl.UUCP> jla@usl.UUCP (Joe Arceneaux) writes:
> >
> > present which are not mentioned in the film.  I remember once reading a
> > short story about a time traveler who goes back to check out the dinosaurs.
> > All he does is step out of his machine, look around then get back in, but
> > doing so he accidentally kills a butterfly.  When he gets back to the
> > "present" things are radically different.  (Of course the farther back one
> > goes, the more drastic the effects of the visit.)  Does anyone remember
> > this story, and the author/title?  Thanks.
> > -- 
> > 				    Joe Arceneaux
> 
> Author is definately Ray Bradbury and the name is.... uh....  "Time
> Safari" I think.
> -- 
> 
> UUCP: ...{decvax,ihnp4,allegra}!seismo!trwatf!root	- Lord Frith
> ARPA: trwatf!root@SEISMO
> 
> "There is not a single McDonald's in Garrett County"

Actually, there is a better story along these same lines.  I don't remember
the title, (I *think* Asimov wrote it), but it starts out in a classroom
with a bunch of students watching the professor demonstrate that time
travel *can't* alter anything; nothing relies so heavily on any one event
for the future to be significantly changed.  As demonstration, the 
professor starts a pendulum swinging back and forth through a time
travel device which moves back a million years on every swing.  Of course,
by the end of the demonstration, a couple dozen swings later (with
detailed descriptions of that caterpillar being killed, which causes
A, then B, then C, then D, and so on), nothing has changed, at least
that anyone realizes.  It's just that all the students and the professor
are now intelligent reptiles!

The whole story is only a couple of pages.