''The Smoke Ring'' is a 1987
science fiction
Science fiction (sometimes shortened to Sci-Fi or SF) is a genre of speculative fiction which typically deals with imaginative and futuristic concepts such as advanced science and technology, space exploration, time travel, parallel unive ...
novel by
Larry Niven
Laurence van Cott Niven (; born April 30, 1938) is an American science fiction writer. His best-known works are ''Ringworld'' (1970), which received Hugo, Locus, Ditmar, and Nebula awards, and, with Jerry Pournelle, ''The Mote in God's Eye'' ...
. Like much of Niven's work, the story is heavily influenced by the setting: a
gas torus
A gas torus is a toroidal cloud of gas or plasma that encircles a planet. In the Solar System, gas tori tend to be produced by the interaction of a satellite's atmosphere with the magnetic field of a planet. The most famous example of this is th ...
, a ring of air around a
neutron star
A neutron star is the collapsed core of a massive supergiant star, which had a total mass of between 10 and 25 solar masses, possibly more if the star was especially metal-rich. Except for black holes and some hypothetical objects (e.g. white ...
. It is a sequel to ''
The Integral Trees
''The Integral Trees'' is a 1984 science fiction novel by American writer Larry Niven (first published as a serial in ''Analog'' in 1983). Like much of Niven's work, the story is heavily influenced by the setting: a gas torus, a ring of air arou ...
''.
Setting
The story is set at the fictional neutron star Levoy's Star (abbreviated "Voy"). The
gas giant
A gas giant is a giant planet composed mainly of hydrogen and helium. Gas giants are also called failed stars because they contain the same basic elements as a star. Jupiter and Saturn are the gas giants of the Solar System. The term "gas giant" ...
Goldblatt's World (abbreviated "Gold") orbits the star just outside its
Roche limit
In celestial mechanics, the Roche limit, also called Roche radius, is the distance from a celestial body within which a second celestial body, held together only by its own force of gravity, will disintegrate because the first body's tidal forc ...
. While Gold's gravity is enough to keep it from being pulled apart by Voy's
tidal force
The tidal force is a gravitational effect that stretches a body along the line towards the center of mass of another body due to a gradient (difference in strength) in gravitational field from the other body; it is responsible for diverse phenomen ...
s, it is insufficient to hold its atmosphere, which has been pulled loose into an independent orbit around Voy. This orbiting air forms a ring known as a
gas torus
A gas torus is a toroidal cloud of gas or plasma that encircles a planet. In the Solar System, gas tori tend to be produced by the interaction of a satellite's atmosphere with the magnetic field of a planet. The most famous example of this is th ...
. The gas torus is huge—one
million
One million (1,000,000), or one thousand thousand, is the natural number following 999,999 and preceding 1,000,001. The word is derived from the early Italian ''millione'' (''milione'' in modern Italian), from ''mille'', "thousand", plus the au ...
kilometers thick—but most of it is too thin to be habitable. The central part of the Gas Torus, where the air is thicker, is known as the Smoke Ring. The Smoke Ring supports a wide variety of life.
Robert L. Forward
Robert Lull Forward (August 15, 1932 – September 21, 2002) was an American physicist and science fiction writer. His literary work was noted for its scientific credibility and use of ideas developed from his career as an aerospace engineer. He ...
helped Niven calculate the parameters of the ring.
There is no "ground" in the Smoke Ring; it is a world consisting entirely of sky. Thus, most animals can fly, even the fish. Furthermore, since the Smoke Ring is in orbit, it is in
free fall
In Newtonian physics, free fall is any motion of a body where gravity is the only force acting upon it. In the context of general relativity, where gravitation is reduced to a space-time curvature, a body in free fall has no force acting on i ...
. There is no "up" or "down", only "in" or "out" from Voy. Humans moving in the Smoke Ring use a poetic adage to aid their understanding of orbital mechanics - "East takes you Out, Out takes you West, West takes you In, In takes you East. Port and Starboard bring you back". (In the novel, the characters also say: "North and South bring you back").
Most animals have
trilateral symmetry
Rotational symmetry, also known as radial symmetry in geometry, is the property a shape has when it looks the same after some rotation by a partial turn. An object's degree of rotational symmetry is the number of distinct orientations in which i ...
, allowing them to see in all directions. Most plants in the Smoke Ring are quite fragile, as they don't have to support their own weight. A notable exception to this rule are the Integral Trees. These are trees that are up to 100 kilometers long.
Tidal locking
Tidal locking between a pair of co-orbiting astronomical bodies occurs when one of the objects reaches a state where there is no longer any net change in its rotation rate over the course of a complete orbit. In the case where a tidally locked b ...
causes them to be oriented radially, with one end pointing in toward Voy and one end pointing out. The ends of the tree experience a tidal force of up to 1/5
''g''. Each end consists of a leafy "tuft", which is where photosynthesis occurs.
Each tuft of a tree is 50 kilometers from the tree's
center of mass
In physics, the center of mass of a distribution of mass in space (sometimes referred to as the balance point) is the unique point where the weighted relative position of the distributed mass sums to zero. This is the point to which a force may ...
. Thus, a tuft is either orbiting too slowly (the in tuft) or too quickly (the out tuft). Since the atmosphere at either end is moving at its local orbital speed, the ends of trees are subject to a constant hurricane-force wind. This wind bends the ends into the shape of an
integral
In mathematics
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented i ...
symbol: ∫.
The Smoke Ring was colonized 500 years prior to the beginning of the story by a crew of 20 astronauts. Their descendants have adapted to the free-fall environment by growing taller and developing prehensile toes.
According to ''
N-Space
n-Space Inc. was an American video game developer founded in 1994 by Erick S. Dyke, Dan O'Leary, and Sean Purcell. It developed games on nearly a dozen different platforms, but was mostly focused on Nintendo consoles and handhelds in particul ...
'', the wings and the method of self-propelled flying featured in the novel were suggested by
Isaac Asimov
yi, יצחק אזימאװ
, birth_date =
, birth_place = Petrovichi, Russian SFSR
, spouse =
, relatives =
, children = 2
, death_date =
, death_place = Manhattan, New York City, U.S.
, nationality = Russian (1920–1922)Soviet (192 ...
.
Plot summary
This book takes place about fifteen years after the end of the original story, when survivors of the Dalton-Quinn tree, a few Carther States jungle dwellers, and two London Tree Citizens have settled on a new tree. This 'Citizen's Tree' has become a stable community which some believe may be too small to survive in the long run.
Kendy, the recorded personality of a citizen of "
The State
A state is a centralized political organization that imposes and enforces rules over a population within a territory. There is no undisputed definition of a state. One widely used definition comes from the German sociologist Max Weber: a "stat ...
" who exists in the computer of the original space-ship that colonized the Smoke Ring, has become impatient. He decides to re-establish contact with Citizen's Tree. Kendy manipulates a group into making contact with "The Admiralty", a neighboring civilization at Gold's L4
Lagrange Point
In celestial mechanics, the Lagrange points (; also Lagrangian points or libration points) are points of equilibrium for small-mass objects under the influence of two massive orbiting bodies. Mathematically, this involves the solution of th ...
(which they refer to as "the Clump"). The group explores this more advanced civilization with a mixture of wonder and trepidation.
Although much of the story is a sort of "
travelogue
Travelogue may refer to:
Genres
* Travel literature, a record of the experiences of an author travelling
* Travel documentary
A travel documentary is a documentary film, television program, or online series that describes travel in general or t ...
" exploring the Smoke Ring and the technology used in the unique environment, ''The Smoke Ring'' does spend more time on story and character development than ''The Integral Trees''. One of the drivers for the story follows the latest operator of "the silver suit", the Citizen's Tree's working spacesuit. Few are capable of operating the suit due to its size; due to the lack of gravity, most humans in the Smoke Ring grow too tall to fit into it. The job goes to the occasionally born "dwarves" who tend to develop into humans of Earth-normal height and build. A major sub-plot develops around the latest silver suit operator's attempts to infiltrate The Admiralty to gain information, and The Admiralty's near obsession with capturing the Citizen's Tree's spacesuit.
This focuses on the story of Kendy and the original mission. The chain of events that led to the colonization of the Smoke Ring through a "mutiny" on the ship is explored. After retrieving the crew's own records of the events, Kendy realizes that the crew had not mutinied at all, and that he had forced them off the ship, believing this to be in keeping with his orders from Earth. This was apparently blocked from his memory, and he suffers a form of breakdown when he learns (or re-learns) the truth.
Literary significance and reception
The
Magill Book Reviews said in 1990 that "the societies and science in the book are very well-researched. It is, however, a "hard" science fiction novel, and it has the weakness endemic to that genre – the individual characters are never satisfyingly drawn, so that the reader is somewhat distanced from them."
The
Library Journal
''Library Journal'' is an American trade publication for librarians. It was founded in 1876 by Melvil Dewey. It reports news about the library world, emphasizing public libraries, and offers feature articles about aspects of professional prac ...
said in 1987 that "the alien topography of this sequel to ''
The Integral Trees
''The Integral Trees'' is a 1984 science fiction novel by American writer Larry Niven (first published as a serial in ''Analog'' in 1983). Like much of Niven's work, the story is heavily influenced by the setting: a gas torus, a ring of air arou ...
'' serves as a fascinating contrast to the persistence of humanity's adventuring spirit".
J. Michael Caparula reviewed ''The Smoke Ring'' in ''
Space Gamer/Fantasy Gamer'' No. 81.
Caparula commented that "The setting is, naturally, spectacular, but a lot of the freshness has worn off. ''
Ringworld
''Ringworld'' is a 1970 science fiction novel by Larry Niven, set in his Known Space universe and considered a classic of science fiction literature. ''Ringworld'' tells the story of Louis Wu and his companions on a mission to the Ringworld, a ...
'' merited a sequel, ''The Integral Trees'' did not."
References
Sources
*
{{DEFAULTSORT:Smoke Ring, The
1987 American novels
1987 science fiction novels
American science fiction novels
Fiction about gas giants
Novels by Larry Niven
Del Rey books
Ballantine Books books
Fiction set around neutron stars
Books with cover art by Michael Whelan