archive: SETI Re: Sagan: Relativism and Light Speed

SETI Re: Sagan: Relativism and Light Speed

Larry Klaes ( lklaes@bbn.com )
Tue, 29 Dec 1998 09:31:35 -0500

When Carl Sagan was trying to come up with a plausible way for
Ellie Arroway to travel across the galaxy at almost instantaneous speeds
in Contact, without violating the speed of light limit, he consulted with
Kip Thorne, who came up with the idea of artificial cosmic wormholes.

See these sources:

http://www.coseti.org/klaescnt.htm#Wormholes

http://www.lerc.nasa.gov/WWW/PAO/html/warp/ideachev.htm#worm

http://www.cup.org/Titles/57/052157286X.html

http://www.stardrive.org/ (Wear your Skeptics Hat tightly on this one,
though.)

Larry

At 06:58 PM 12/28/1998 CST6CDT,3,-, Gerard Madden wrote:
>The trip described below by Kip Thorne is almost identical to
>the one Carl Sagan uses in the chapter "Travel's in Space and
>Time" in Cosmos.
> Gerard
>
>"The entire trip of 30,100 light-years distance will require 30,102 years as
>measured on Earth; but as measured on the starship it will require only
>20 years. In accordance with Einstein's laws of special relativity, your
>ship's high speed will cause time, as measured on the ship, to "dilate"
>and this time dilation (or time warp), in effect, will make the starship
>behave like a time machine, projecting you far into the Earth's future
>while you age only a modest amount."
>Kip s. Thorne Black Holes and Time Warps (Prologue) P. 37
>
>
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