Ringworld de Niven, Larry

Random House Publishing Group, 1981. Mass Market Paperback. Acceptable. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.Dust jacket quality is not guaranteed.

Random House Publishing Group, 1981. Mass Market Paperback. Good. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.Dust jacket quality is not guaranteed.

Del Rey, 1981-02-12. Paperback. Good. Ringworld SciFi Series 1 Paperback - Heavily read

Del Rey, 2/12/1981 12:00:01 A. mass_market. Good. 1.0000 in x 6.9000 in x 4.0000 in. Crease marks on bottom right corner of front cover.

Fine.

Toronto: A Del Rey Book - Random House of Canada, Limited, 1981. Light Creasing on Front, Rear Covers, Spine; Front, Rear Covers, Spine Lightly Chipped; Spine Slightly Cocked; Edges Lightly Soiled; Slight Yellowing Due to Age. The Hugo and Nebula Award-winning novel...the gripping story of a ring-shaped world around a distant sun. SYNOPSIS: 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. It 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. Rotation on its axis of 700 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… Leer más

Ballantine Books, 1971. Mass Market Pa. very good or better. 6x4x1. Prompt shipment, with tracking. we ship in CLEAN SECURE NEW boxes very good or better minor creasing, clean pages, sturdy reading copy

mass_market. Good. Access codes and supplements are not guaranteed with used items.

Del Rey, 1981-02-12. Mass Market Paperback. New. New. In shrink wrap. Looks like an interesting title!