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Month Index: August, 1994


From:     Stephen Burton Mann <smann@??.com>
Date:     Mon, 22 Aug 1994 01:52:47 -0400
Subject:  Re: What is a ringworld?
     The Ringworld was created in a 2-book story by Larry Niven. The 
Ringworld was built a human-type race called the Pak. All the material in 
that solar system (and possibly other systems) was used to create a ribbon.
Consider a ribbon joined so that it makes a loop. This loop is approximately
a million miles wide and several miles thick, and is constructed out of a
supermetal able to hold together as the loop spins fast enough to generate
1G on the inside of the loop. Mountainns one thousand miles tall form 
walls at the inside edges of the loop. These mountain walls prevent the loop's
atmosphere from spilling off the edge.
     Consider this huge ribbon, a million miles wide, and long 
enough to make a loop with a radius of 93 million miles. The inside of 
the loop has an atmosphere, and a surface area many, many, many, MANY 
times that of Earth. In fact, there is an ocean somewhere on the 
Ringworld where there is a 1:1 copy of the Earth (continents) right next to 
copies of Mars and several other inhabited planets. ALL IN THE SAME OCEAN!
     The Ringworld was originally inhabited by Pak breeders, but they 
eventuall evolved into various human sub-breeds. A superconductor-eating 
virus destroyed the civilization that dominated this world. The 2 books 
take place long after the civilization collapses, and concerns several 
beings from Known Space who find and explore (somewhat) the Ringworld.
     These books are quite good and are considered classics: _Ringworld_, 
and _Ringworld Engineers_.


==============================================================================
 Stephen Mann                                                    smann@??.com
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Previous Message: Re: Ringworlds & Dyson Spheres
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Month Index: August, 1994

SubjectFromDate (UTC)
What is a ringworld?    Stephen Burton Mann    22 Aug 1994 05:52:47
Re: What is a ringworld?    Michael Sandy    22 Aug 1994 09:11:58

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