Nessus is also a central character of the Fleet of Worlds series of Ringworld companion novels ( Fleet of Worlds, Juggler of Worlds, Destroyer of Worlds, Betrayer of Worlds, and Fate of Worlds ), that opens about 200 years before Ringworld and ends following Ringworld's Children.

The Ringworld series is set in the Known Space universe.

The stories that constitute the Known Space series were originally conceived as two separate series: the Belter stories, featuring solar-system colonization and slower-than-light travel with fusion-powered and Bussard ramjet ships, and the Neutron Star / Ringworld series of stories, set much further into the future, which feature faster-than-light ships using " hyperdrive ".

Similarities to Ringworld have been noted in the game, and Niven was asked ( but declined ) to write the first novel based on the series.

The world is described in a series of novels by Niven, Ringworld, The Ringworld Engineers, and, after the game's publication, The Ringworld Throne and Ringworld's Children.

* In the Ringworld series by Larry Niven, a ring a million miles wide is built and spun ( for gravity ) around a star roughly one astronomical unit away.

Both Dyson spheres and the Ringworld suffer from gravitational instability, however — a major focus of the Ringworld series is coping with this instability in the face of partial collapse of the Ringworld civilization.

* In Larry Niven's Ringworld series, revealed in The Ringworld Throne, the Ghoul species use heliographs for their vast communication network across the Ringworld.

Louis Gridley Wu, a fictional character, is the main protagonist in the Ringworld series of books, written by Larry Niven.

In Larry Niven's Ringworld series, the character Teela Brown is a result of several generations of winners of the " Birthright Lottery ", a system which attempts to encourage lucky people to breed, treating good luck as a genetic trait.

* Larry Niven ( 1 )-Author of many science fiction books, including the Ringworld series

Ringworld's Children is a 2004 science fiction novel by Larry Niven, the fourth in the Ringworld series set in the Known Space universe.

* Larry Niven's series of novels beginning with Ringworld centered around, and originated the concept of a ringworld, or Niven ring.

Speaker-to-Animals ( or later Chmeee ) is a fictional character in the Ringworld series of books, written by Larry Niven.

Given that spinning a Dyson Sphere would result in the atmosphere pooling around the equator, the Ringworld removes all the extraneous parts of the structure, leaving a spinning band landscaped on the sun-facing side, with the atmosphere and inhabitants kept in place through centrifugal force and 1000 mile high perimeter walls ( rim walls ).

When it was pointed out to Niven that the Ringworld was dynamically unstable, in that once the center of rotation drifted away from the central sun, gravity would pull the ring into contact with the star, he used this as a plot element in the sequel novel, The Ringworld Engineers.

#* Guide to Larry Niven's Ringworld ( 1994, with Kevin Stein )

By the time Ringworld takes place, Kzinti are able to deal with other races diplomatically, rather than by attacking and enslaving them.

The Ringworld Roleplaying Game describes it as an ocean planet dotted with island shield volcanoes.

* The Ringworld is an artificial world structure with three million times the surface area of Earth, built in the shape of a giant ring orbiting its sun, a million miles wide and with a diameter of 186 million miles.

This becomes a problem with disks that are a significant distance apart on the Ringworld surface, as they will have different velocities: same speed, different direction.

In the Known Space stories, Niven had created a number of technological devices ( GP hull, stasis field, Ringworld material ) which, combined with the " Teela Brown gene ", made it very difficult to construct engaging stories beyond a certain date — the combination of factors made it tricky to produce any kind of creditable threat / problem without complex contrivances.

The severely damaged vessel collides with a strand of shadow-square wire and crash-lands on the Ringworld near a huge mountain.

The massive mountain does not appear on a map of the original Ringworld, leading Louis to conclude that it is in fact the result of a meteor impact with the underside of the ring, which pushed the " mountain " up from the ring floor and broke through.

The book concludes with Louis and Speaker discussing returning to the Ringworld.

In his dedication to The Ringworld Engineers, Niven wrote, " If you own a first paperback edition of Ringworld, it's the one with the mistakes in it.

One major problem was that the Ringworld, being a rigid structure, was not actually in orbit around the star it encircled and would eventually drift, resulting in the entire structure colliding with its sun and disintegrating.

Instead, the game and rules focused on parties of characters exploring the Ringworld itself, and, despite its vast size ( with a surface area larger than that of all of Known Space's inhabited planets put together ), many who bought the game felt limited by this one world setting.

The Gamemaster Book begins with technical essays on the Ringworld, from physical construction, to life on the ring, with diagrams.

The book starts with a diagram of the Ringworld and its star, EC-1752, new humanoids, aliens, plants and animals, technological objects, and original errata.

A hull material that gets stronger with pressure in the film The Core was nicknamed unobtainium, but the concept under different names can be seen in the anti-gravity material cavorite and the super-strong material scrith from Larry Niven's novel Ringworld, which requires a tensile strength on the order of the forces binding an atomic nucleus together.

Other science fiction authors have devised their own variants of Niven's Ringworld, notably Iain M. Banks ' Culture Orbitals, best described as miniature Ringworlds, and the ring-shaped Halo structure of the video game Halo.

They are similar to the Orbitals in Iain M Banks ' Culture novels, and author Larry Niven's Ringworld concept.

A percentile skill-based system, BRP was used as the basis for most of the games published by Chaosium, including Stormbringer, Worlds of Wonder, Call of Cthulhu, Superworld, Ringworld, Elfquest, Hawkmoon, Elric !, and Nephilim.

These generic rules formed the basis of many of Chaosium's later RPGs, such as Call of Cthulhu, Stormbringer, Nephilim, and Ringworld.

In various other books, for example Ringworld, Niven suggests that easy transportation might be disruptive to traditional behavior and open the way for new forms of parties, spontaneous congregations, or shopping trips around the world.

For example a group at MIT concluded that the planet Mesklin in Hal Clement's 1953 novel Mission of Gravity would have had a sharp edge at the equator, and a Florida high-school class calculated that in Larry Niven's 1970 novel Ringworld the topsoil would have slid into the seas in a few thousand years.

The same book famously featured a devastating inaccuracy: the eponymous Ringworld is not ( in ) a stable orbit and would crash into the sun without active stabilization.

Niven fixed these errors in his sequel The Ringworld Engineers, and noted them in the foreword.

His best-known work is Ringworld ( 1970 ), which received Hugo, Locus, Ditmar, and Nebula awards.

In addition to the Nebula award in 1970 and the Hugo and Locus awards in 1971 for Ringworld, Niven won the Hugo Award for Best Short Story for " Neutron Star " in 1967.

Niven's most famous contribution to the SF genre is his concept of the Ringworld, a band of approximately the same diameter as Earth's orbit rotating around a star.

It is one of the most visible influences of the Ringworld concept on popular culture.

The fictional universe is also the home of species from outside Known Space, including the hominid inhabitants of a megastructure called Ringworld.

In Ringworld it is revealed that this was in part due to clandestine meddling by the Pierson's Puppeteers.

Female Kzinti are not sapient, although among the archaic Kzinti found on the Ringworld some are.

No description is given, but the Ringworld RPG suggests they resemble horned birds and that their homeworld has low gravity.

* Outsiders: very advanced, fragile aliens shaped like cats o ' nine tails that, according to Ringworld, probably evolved on a cold, low gravity world resembling Nereid.

When the Protectors reappear in The Ringworld Engineers and its sequels, it is strongly indicated that they constructed the Ringworld.

Likewise, every hominid species found on the Ringworld is descended from Pak breeders, and all are susceptible to the virus of Tree-of-life.

Some Martians still exist on the " Map of Mars " on the Ringworld.

Also figuring in some stories are dolphins and other intelligent cetaceans, and various offshoots of Homo sapiens including the associate lineage of the hominids of the Ringworld.