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Ringworld
Ringworld
Author: Larry Niven
?I myself have dreamed up an intermediate step between Dyson Spheres and planets. Build a ring 93 million miles in radius ? one Earth orbit- which would make it 600 million miles long . . . . ?There are other advantages. We can spin it for gravity. A rotation on its axis of 770 miles/second would give the Ringworld one gravity outward. . . ...  more »
ISBN: 320694
Publication Date: 12/1977
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3.8 stars, based on 2 ratings
Publisher: Ballentine Books
Book Type: Paperback
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