503 5d6fe71f-276c-438d-8b45-7b1c470b1ca3 Ringworld Larry Niven calibre (7.16.0) [https://calibre-ebook.com] 1985-09-11T21:00:00+00:00 EDITORIAL REVIEW: A new place is being built, a world of huge dimensions, encompassing millions of miles, stronger than any planet before it. There is gravity, and with high walls and its proximity to the sun, a livable new planet that is three million times the area of the Earth can be formed. We can start again! Ballantine Books 9780345333926 eng Fiction - Science Fiction High Tech Science Fiction Ringworld (Imaginary place) General Science Fiction - General adventure Life on other planets Fiction