The Ringworld Engineers

“I detached an intact deuterium filter from the probe Teela later destroyed,” the Hindmost said. “I can fuel that ship. Teela’s journey was grueling, but yours need not be. You may take floating discs for exploring, and for trade goods when you reach shore.”

“Good idea.”

“Will you want a working droud?”

“Don’t ever ask me that again, okay?”

“Okay. Your answer is evasive.”

“Right. Can you dismount a pair of stepping discs from Needle and install them in the ship? It’d give us something to fall back on if we hit real trouble.” He saw the puppeteer eye to eye with himself, and he added, “It could save your life. There’s still a protector and he won’t have to leave the Ringworld now, thanks to us.”

“I can do that,” the Hindmost said. “Well, is this an adequate means to reach the mainland?”

Chmeee said, “Yes. A long voyage… a hundred-thousand-mile journey. Louis, your people suppose a sea voyage to be restful.”

“On this sea, it’s more likely to be entertaining. We wouldn’t have to head straight to spinward. There’s the Map of an unknown world to antispinward, and it’s less than twice as far.” Louis smiled at the City Builders. “Kawaresksenjajok, Harkabeeparolyn, shall we check out some legends for ourselves? And maybe make a few.”

Glossary

ANTISPINWARD: Direction opposite to the Ringworld’s direction of spin.

ARCH: The Ringworld as seen from the surface. Some natives believe their world is a flat surface surmounted by a narrow parabolic arch.

ARM: The United Nations police. Jurisdiction is limited to Earth-Moon system.

BELTER: Citizen of the asteroid belt, Sol system.

CONTROL CENTER: See REPAIR CENTER.

CZILTANG BRONE: A City Builder device, a beamer that allows solid objects, freight, passengers, etc., to penetrate scrith.

DROUD: A small device that plugs into the skull of a current addict. Its purpose: to meter the current flow to the pleasure center of the addict’s brain.

EYE STORM: The pattern of winds that form around a meteor puncture in the Ringworld floor.

ELBOW ROOT: Ringworld plant grown for fences.

FLEET OF WORLDS: The five puppeteer planets.

FLYCYCLE: Single-seater vehicle used for exploration on the first Ringworld expedition.

FLUP: Seabottom ooze.

FOOCH (FOOCHESTH): Stone couches set throughout the kzinti hunting parks.

HUMAN SPACE: The cluster of stellar systems inhabited by mankind.

KNOWN SPACE: The stellar region known to humanity through the explorations of human or other species.

LANDER: General term for a ground-to-orbit craft.

LONG SHOT: See QUANTUM II HYPERDRIVE.

MAKE HIS (HER) DAY: Use a tasp on him (her), especially from concealment.

OUTSIDER: Intelligent life form whose biochemistry is based on liquid helium and the thermoelectric effect. Outsider ships roam the stars at sublight speeds, trading in information.

OUTSIDER HYPERDRIVE: Faster-than-light drive never used by the Outsiders themselves, but used extensively by the star-traveling species of known space.

PORT: To the left as one faces spinward.

QUANTUM II HYPERDRIVE: Developed by Pierson’s puppeteers, a mode of travel [that] is enormously faster than the Outsider hyperdrive. Long Shot was the prototype spacecraft, the first to visit the galactic core.

REPAIR CENTER: (Hypothetical) Center of Ringworld maintenance and controls.

RISHATHRA: Sex practices outside of one’s own species (but within the hominids).

SCRITH: Ringworld structural material. Scrith underlies all of the terraformed and contoured inner surface of the Ringworld. The rim walls are also of scrith. Very dense, with a tensile strength on the order of the force that holds atomic nuclei together.

STEPPING DISKS: Teleportation system used on the Fleet of Worlds. (Other known races use a less sophisticated method, the enclosed transfer booths.)

SPILL MOUNTAINS: Mountains standing against the rim wall. They have their own ecology. One stage in the circulation of flup.

SPAGHETTI PLANT: Ringworld plant, description obvious. Edible.

SPINWARD: In the direction of rotation of the Ringworld.

STARBOARD: To the right as one faces spinward.

STASIS: A condition in which time passes very slowly. Ratios can be as high as half a billion years of real time to a few seconds in stasis. An object in stasis is very nearly invulnerable.

TANJ: Slang acronym formed from “There Ain’t No Justice.” Used as an expletive.

TASP: A hand-held device to tickle the pleasure center of a human brain from a distance.

TERRAFORM: Operate on an environment to render it Earthlike.

THRUSTER: Reactionless drive; has generally replaced fusion rockets on all spacecraft save warcraft.

WEENIE PLANT: Ringworld plant similar to melons or cucumbers, but growing in links. Clusters of roots spring from the nodes. Grows in damp areas. Edible.

Ringworld Parameters

30 hours = 1 Ringworld day

1 turn = 7.5 days = A Ringworld rotation

75 days = 10 turns = 1 falan

Mass = 2 X 10^30 grams

Radius= .95 X 10^8 miles

Circumference = 5.97 X 10^8 miles

Width = 997,000 miles

Surface area = 6 X 10^14 square miles = 3 X 10^6 times the surface area of Earth (approx.)

Surface gravity = 31 feet/second/second = .992 G

Rim walls rise inward, 1000 miles high.

Star: G3 verging on G2, barely smaller and cooler than Sol

About The Author

Larry Niven is one of today’s leading science-fiction authors, recognized particularly for his mercurial scientific imagination as exercised in his “Tales of Known Space,” short story fiction published in several collections, and the prize-winning novel, Ringworld. His other recent books include the mainstream bestseller, Lucifer’s Hammer, written with Jerry Pournelle.