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      Ringworld

      by Larry Niven
      Published
      Oct 1970
      Main Genre
      Science Fiction Sci-Fi
      Rating
      Pages
      352
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      Series
      Ringworld Book 1

      About This Book

      THE DIMENSIONS OF RINGWORLD

      "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. If we have the mass of Jupiter to work with. and if we make it a million miles wide, we get a thickness of about a thousand meters. The Ringworld would thus be much sturdier than a Dyson sphere.

      "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. We wouldn't even have to roof it over. Put walls a thousand miles high at each rim, aimed at the sun, and very little of the air will leak over the edges.

      The thing is roomy enough: three million times the area of the Earth. It will be some time before anyone complains of the crowding:

      Series Placement

      Book 1
      View full series order

      Genres & Themes

      Genres

      Speculative Fiction

      Subgenres

      Science Fiction Space Opera

      Characters & Occupations

      Aliens

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      Jul 1973 Sphere (UK) ISBN 0722163916
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      Nov 1979 Del Rey ISBN 0345288661
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      Feb 1981 Del Rey ISBN 0345293010
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      Mar 1982 Del Rey ISBN 0345306341
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      Sep 1991 Orbit ISBN 0708883745
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