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The Lensman series is a serial science fiction space opera by E. E. Smith. The series is significant because it was the first set of science fiction novels conceived as a series.

It was also the original source which introduced many innovative concepts into science fiction, and a variety of ideas newly introduced in the series later were taken and used to solve non-fictional problems. In this sense the series was ground-breaking and defined an entire genre.

Overview

The ultimate expression of the "super-science" sub-genre of science fiction, the Lensman series was so innovative and successful at the time of its first publication that it was widely imitated, setting the themes followed by most of what later became known as the "space opera" sub-genre. As a result, to a modern reader it may seem rather dated or clichéd. The modern reader may also feel that it is filled with sexist and racist stereotypes. The series' prose style has also been described as "overly ornate" by modern readers unused to the old pulp style.

However, Dr. Smith wrote most of his best work between 1928 and 1954, well before the antiracist and feminist movements of the 1960s. He portrays powerful intelligent women, operating in traditional roles, rather than hackneyed maidens in distress. Minorities in his stories are not discriminated against, but rather are "out of sight and out of mind." He describes alien races sympathetically, by the standards of the 1930s, 1940s and 1950s, showing that true camaraderie is independent of species, shape and metabolism. Finally, despite its faults, the reader cannot help but notice the evident enthusiasm and enjoyment which Smith had for his subject matter.

It is worth noting as well that Smith himself parodies the worst examples of the genre in the series, as one of the characters temporarily adopts the identity of a writer in order to disguise himself and produces a novel (later acclaimed as one of that writer's "best") featuring "Qodgap the Mercotan."

The complete series of books, in sequence, consists of:

1. Triplanetary
2. First Lensman
3. Galactic Patrol
4. Gray Lensman
5. Second-Stage Lensmen
6. Children of the Lens

Originally the series consisted of the final four novels published between 1937 and 1948 in the magazine Astounding Stories . However, in 1948, at the suggestion of Lloyd Arthur Eshbach (publisher of the original editions of the Lensman books as part of the Fantasy Press imprint), Smith rewrote his 1934 story Triplanetary, originally published in Amazing Stories, to fit in with the Lensman series. First Lensman was written in 1950 to act as a link between Triplanetary and Galactic Patrol and finally, in the years up to 1954, Smith revised the rest of the series to make it internally consistent with the new additions for book publication.

Using the same fictional universe, but not as part of the series, he also wrote the Vortex Blaster stories, including "Storm Cloud on Deka" and "The Vortex Blaster Makes War" for Astonishing Stories in 1942. These stories and later additions were collected and published by Gnome Press as The Vortex Blaster in 1960 and later reprinted by Pyramid Books as Masters of the Vortex in 1968.

To avoid plot spoilers, it is recommended the series be read in order of publication: Galactic Patrol, Gray Lensman, Second Stage Lensmen, Children of the Lens, Triplanetary, First Lensman. The foreword Smith added to each also contains plot spoilers and it is recommended readers skip those until after reading Children of the Lens.

The Vortex Blaster stories contain no plot spoilers, so may be read at any point after Gray Lensman. However, it references "the fall of the Council of Boskone” and the Phillips Regenerative Process (Ch. 4), which would place it between Second-Stage Lensman and Children of the Lens, and before Kyle’s Second-Stage Lensman series.

On July 14, 1965, Smith gave written permission to William B. Ellern to continue the Lensman series, which led to the publishing of New Lensman in 1976. Many consider Ellern's work unequal to Smith's, but he took care to remain within the boundaries of Smith's series.

Three additional Lensmen novels that feature the alien Second-Stage Lensmen (the Second-Stage Lensman Trilogy) were written by David A. Kyle and published in paperback between 1980 and 1983:

• The Dragon Lensman (Worsel, the legendary Velantian dragon)
• Lensman from Rigel (Tregonsee, the enigmatic alien from the system of the blue star Rigel)
• Z-Lensman (Nadreck the Palainian, strangest of the three non-human Second Stage Lensmen)
• A fourth novel, which was to have told the story of the Red Lensman, was discussed, but never completed.

The events in these books take place between Second-Stage Lensmen and Children of the Lens, and reference events and characters in Vortex Blaster.

Kyle was a close friend and confidant of Smith, and (with the approval of Smith's daughter, Verna Trestrail) intended his novels to evoke the original series. However, Kyle's writing style is quite different, and his books stray well outside the limits Smith set, such as sentient digital computers in The Dragon Lensman and female Lensmen.

In 1984, an anime movie titled SF New Age Lensman (SF新世紀レンズマン, SF Shinseiki Renzuman) was released in Japan. It was released in North America by Streamline Pictures in 1990. The movie is not faithful to the series, with nearly the only points of similarity being the names of some of the characters, the generic "Good vs. Evil" struggle and outer space setting, and the Lens itself which posesses characteristics distinctly different from those given for it in the novels.

Other appearances

In the DC Comics universe, the Green Lantern Corps bears many parallels to the Lensmen, although its principal creators deny any connection (later creators, however, would introduce Green Lanterns named Arisia and Eddore as an homage). The original computer graphics game Spacewar! was inspired by the Lensman series. Comparisons have also been made between the Arisians and Eddorians of Smith's universe with both George Lucas's Star Wars galaxy (an early draft of the Star Wars script refers to the light side of the Force as "Arisian") and the Vorlons and Shadows of Babylon 5. The GURPS role-playing game includes a source book describing how to conduct a role-playing campaign set in the Lensman universe.

There is also a Japanese anime TV series and movie, Lensman. Although this was produced with the knowledge and consent of Smith's estate, they were so displeased with the result that for several years they rejected any other suggestions of adaptation. With Smith's knowledge the parody Backstage Lensman was written by Randall Garrett in 1949. Garrett also referred to the Lensmen in his Lord Darcy stories, in which similar lenses are the badges of the King's Messengers, invented by the wizard Sir Edward Elmer (a reference to Smith himself).

In addition, the Lensmen appear in Robert A. Heinlein's Number of the Beast and The Cat Who Walks Through Walls, which make reference to a "Lensman Ted Smith" who interacts directly with Heinlein characters such as Lazarus Long and Hilda Burroughs.

Plot synopsis

Template:Spoiler

The series opens in Triplanetary, two billion years before the present time. The universe has few life-forms, except for the elder race of our galaxy, the Arisians, and few planets besides their native world. The Arisians, a peaceful race native to this universe, are already at this time ancient, and have forgone physical needs in preference for contemplative mental power which they have developed and refined to an exceedingly high degree.

Into this universe, from an alien space-time continuum, come the Eddorians, a dictatorial power-hungry race. They have been attracted to this universe by the observation that our galaxy and a sister galaxy (later to be named Lundmark's Nebula) are passing through each other. According to an astronomical theory current at the time of writing (prior to the rehabilitation of the nebula hypothesis), this will result in the formation of billions of planets and the development of life upon them. Dominance over these life forms offers the Eddorians an opportunity to satisfy their lust for power.

The Eddorians have developed mental powers almost equal to those of the Arisians, but rely instead for the most part on physical power, exercised on their behalf by a hierarchy of underling races. They see the many races in the universe, with which the Arisians were intending to build a peaceful civilization, as fodder for their power-drive.

The Arisians, foreseeing the invasion of our universe by the Eddorians, begin a covert breeding program on every world that can produce intelligent life, with the aim of producing a means to eventually destroy the Eddorian race. This they cannot do by mental power alone, and they decide that much time is needed (during which Eddore must be kept ignorant of their plans), and new races must be developed which will better be able to breach the Eddorian's mental powers than they are. The new races, having done so, will naturally be superior guardians of civilization than they can be, and so their role in the universe will be ended. Triplanetary incorporates the early history of that breeding program on Earth, illustrated with the lives of several warriors and soldiers, from ancient times through to the discovery of the first interstellar space drive. It adds an additional short novel (originally published with the Triplanetary name) which is transitional to the novel First Lensman.

The second book, First Lensman, concerns the formation of the Galactic Patrol, and the first Lens, given to First Lensman Virgil Samms on "Tellus" (Earth). The Arisians, through the scientist Bergenholm, make it known that if Samms, the head of the Triplanetary Service which administers law enforcement to Tellus, Mars, and Venus, visits their planetary system, he will be given the tool he needs to build the patrol he dreams of. That tool is the Lens. The Arisians further promise him that no entity unworthy of the Lens will ever be permitted to wear it, but that he will have to discover for himself most of its abilities.

The Lens is a form of "pseudo-life," created by the Arisians who understand life and life-force in a way no other race yet does. It gives its wearer a variety of mental capabilities, including those needed to enforce the law on alien planets and to bridge the communication gap between different life forms. Thus it can provide mind-reading and telepathic abilities while connected (directly or indirectly) to the skin of its user. A mind-reading device, it allows its owner to perceive inner motives, to recognize lies, and to communicate perfectly in any language to any living being, however low its native intelligence may be.

The Lens is described as an ellipsoidal assembly of small cloudy jewels, imbued with a shifting polychromatic light. It is "fitted" on Arisia, and cannot be worn by anyone other than its owner. In the event that an entity to whom the Lens is not fitted tries to wear one, the Lens' pseudo-life properties will interfere so strongly with the other being's life that it will quickly kill the being trying to wear it. Shortly after the owner's death, the lens sublimates and vanishes into nothingness.

Thus equipped, Virgil Samms visits races in other star systems, recruiting the best of them to become Lensmen, thus making the Galactic Patrol truly galactic in scope. The Galactic Patrol, as it emerges, maintains a service academy on several planets. It accepts only the top few percent of applicants. Of millions of initial entrants, only a hundred or so at the top of a planet's graduating class are ever sent to Arisia.

The Arisians fit Lenses only to the most deserving of those individuals. The qualities required of Lensmen include intelligence, utter incorruptibility, a high drive to succeed, and the highest drive to fight evil. Others who try to obtain Lenses simply never return from Arisia. The Arisians otherwise maintain a highly distant profile and refuse to talk to other beings, stating that they have given civilization the tool it needs to bring about a good future, and that people should otherwise not have reason to contact them.

The first woman sent to Arisia is returned without a Lens, being told "Women's minds and Lenses don't fit. There's a sex-based incompatibility." She is also told only one woman will ever become a Lensman.

A significant subplot is usurpation of normal political processes by Lensmen. The Lensmen are totally honest, honorable, uncompromising, and can read minds. Given the nature of the Lens and the Lensmen, dishonest politicians hate and fear them.

The rest of the series is a series of revelations. Although initially believed to be mere interstellar pirates ("Boskonians") and criminals smuggling weapons and drugs ("Zwilniks"), the enemy prove to be organized into a rival civilization based on selfish and ruthless struggles for power.

A continuing multigenerational war is required to trace the Boskonian leaders and subject races to ever-higher echelons of what Lensmen and their followers continue to call "Boskone." Other than the Arisians, only a few individuals will ever know the real nature of the war being covertly fought, and even then only a handful, the so-called "Children of the Lens," will ever eventually come to know of Eddore.

Centuries pass, and eventually the final generations of the breeding program are born. A single individual is born, on each of four planets, who realises the limits of his initial training, and perceives the need to return to Arisia to seek more. Through "second stage" training, these four Lensmen gain additional powers such as the ability to slay by mental force alone; the "sense of perception", similar to a superior version of the stereotypical "X-ray vision", an ability to "perceive" without light, through solid objects, and at great distances; to control minds undetectably; to perfectly split attention in order to perform multiple tasks with simultaneous focus on each; and to better integrate their minds for superior thinking.

The series contains some of the largest-scale space battles ever written. Entire worlds are destroyed (see "Super-Science Weapons", below), whilst weapons are powerful enough to warp space itself. Huge fleets of spaceships fight bloody wars of attrition. Alien races of two galaxies sort themselves into the allied, Lens-bearing adherents of "Civilization" and the enemy races of "Boskone."

As the breeding program reaches its ultimate conclusion, Kimball Kinnison, the brown-haired, gray-eyed second-stage Lensman of Earth, finally marries the most advanced product of the complementary breeding program, Clarissa MacDougal, a beautiful, curvaceous red-haired nurse, who eventually becomes the first human female to receive her own Lens. Their children, a boy and two pairs of twin sisters, grow up to be the five Children of the Lens. In their breeding, "almost every strain of weakness in humanity is finally removed." They are born already possessing the powers taught to second stage Lensmen, with mental abilities from birth hard to imagine. They are the only beings of Civilization ever to see Arisia as it truly is, and the only individuals developed over all the existence of billions of years able finally to penetrate the Eddorian's defense screens.

Undergoing advanced training, they are described as "third stage" Lensmen, transcending humanity with mental scope and perceptions impossible for any normal person to begin to comprehend. Although newly adult, they are now expected to be more competent than the Arisians, and to develop their own techniques and abilities "about which we know nothing." The key discovery comes when they try mind-merging, which they have not tried since before their various third stage trainings, and discover that this is completely changed. No longer are they simply five beings in mental contact as before. Now they discover they can merge their minds into a hive-mind, to effectively form one mental entity, a being with incalculable abilities called The Unit. The Arisians call this the "most nearly perfect creation the universe has ever seen," and state that they, who created it, are themselves almost entirely ignorant of almost all its higher powers.

The Children of the Lens, with the mental power of unknown billions of Lensmen of the Galactic Patrol (around a hundred a year from each planet, billions of planets, decades of graduates), turn out to constitute the Arisians' intended means to destroy Eddore and make the universe safe for their progeny species. The Galactic Patrol, summoned to work together in this way for the first time in its existence, contains billions of beings who in total can generate immense mental force. The Children of the Lens add not only their own immense mental force to this (as do the Arisians), but as The Unit gather and focus all this power onto one tiny point of the Eddorians' shields. Thus attacked with this incalculable strength and precision, the Eddorians' strongest shields are finally, after billions of years, destroyed, and the Eddorians with them.

The Arisians, with their child races successful and safe, remove themselves to "the next plane of existence" in order to leave the Children of the Lens uninhibited in their future as the new guardians of Civilization. Although to human eyes the Children of the Lens age and die, they in fact will live immense lifetimes (as the Arisians themselves did) and, it is foreseen, be successful in their role.

Unresolved plot elements

An unresolved plot element at the end of the series concerns the marriages of the Children of the Lens, as the young man and his sisters have not found anyone interesting. The Arisians have stated that "in time" they will find a suitable match, but imply that one already exists, as the five include four sisters and one brother. Some readers infer the possibility of an incestuous group-marriage between the young man and his four sisters, noting various hints at such an eventuality. It seems likely that Smith could not state this openly, given the strong censorship present in magazine fiction of the era.

The Arisians who engineered the breeding program tell the Children of the Lens that they form a successor race to the Arisians themselves as guardians of Civilization, and indicate that the Children will have descendants. This, too, is consistent with the Children of the Lens interbreeding.

In addition, Smith is reported to have told Robert A. Heinlein at a science fiction convention that there were sufficient unresolved conflicts to write a seventh book, but that he did not think it could be published in the moral climate of the times. Despite strenuous searches of his effects, no trace of a seventh manuscript has been found, so a definitive answer to this question may never be known.

The foreword and afterword of Children of the Lens make reference to a new threat to civilization of such scope as to necessitate the development, by the Children of the Lens or their descendants, of yet another replacement series of guardians. The time scale for this development is suggested to be sufficiently long that even the publicly-known details of the battles that destroyed Eddore and Eddorian civilization have faded from memory, and possibly that even the original Children, with their extended lifetimes, might have passed away.

The sex-based bias of the Lens is never fully explained, but the hints provided suggest that the genesis is at least something more than early 20th Century sexism. Smith seems to have believed that men and women were "equal, but different," and that the nurturing instinct of what would at the time be considered a mentally healthy woman was inconsistent with the duties of most Lensmen. This is the suggestion given Virgilia Samms when she goes to be fitted for a Lens; the fact also remains that she was a much more effective operative for the Triplanetary Service without a Lens. Not addressed is the issue whether this the sex-based bias extends to the non-human races of civilization; though the Palainian that Virgil Samms encounters on Pluto was not a "female" in the human sense, he thinks of her as "she" and believes that she would be qualified for a Lens if she cared to go to Arisia (which disinterest/fear might be the Palainian expression of the incompatibility). "Red" Lensman Clarissa MacDougall feared meeting the Arisians because they had become so mentally advanced that they had totally detached themselves from emotions, including anything like the emotion of Love. The fact that this difference might also be resolved in a sequel is suggested in the final chapter of Children of the Lens, styled "The Power of Love."

Planets and Places

The Lensman series takes place over a vast sweep of space and upon many different worlds. These include the following:

• Aldebaran One -- Occupied by the Wheelmen (who are never stated to be a native species), this is the scene of Kimball Kinnison's first major injury requiring hospitalization, which leads to his meeting of Clarissa MacDougal.
• Aldebaran Two -- One of the first human-settled planets, scene of several of Kimball Kinnison's adventures.
• Arisia – One of the most ancient worlds of our universe, originally Earthlike, inhabited by the Arisian Elders.
• Chickladoria - A planet with a native humanoid species possessing pink skin pigmentation and triangular eyes. Frequent references to the fact that they considered clothing optional.
• Delgon (Velantia Two) - Located in the same system as Velantia, Delgon is home to the soul-devouring Overlords, bred by the Eddorian Gharlane to prey on the Velantians of Velantia Three.
• Eddore – A world inhabited by malevolent creatures from another space-time plenum.
• Jarnevon - A world in Lundmark's Nebula, home of the Eich and their infamous "Council of Boskone," the first Eddorian puppet state to penetrate the First Galaxy. Destroyed at the end of Gray Lensman by crushing between two free planets with opposite intrinsic velocities, inerted just prior to the points of impact.
• Kalonia - A Lundmark's Nebula planet with a humanoid native race marked by cut-steel-blue pigmentation. As hard as their pigmentation suggested, individually they were the most able executives under the sway of Eddore, and the agents of Boskone in the First Galaxy, though reporting to Boskone, were typically Kalonians despite its independent status as a center of Boskonian operations. Discovered by Kim and Christopher Kinnison during Children of the Lens, its conquest was alluded to but never chronicled.
• Klovia - The first planet in Lundmark's Nebula to join Civilization. The heavily-fortified home of the Children of the Lens.
• Lundmark's Nebula - The "Second Galaxy," which collided with the "Milky Way" or "First Galaxy" 2 billion years ago, leading to the large populations of planets nurtured by Arisia and discovered by Eddore. Home of the Eddorians, the Ploorians, and the major races of their empire, including the Eich, the Thalians, and the Kalonians. Historical Note: Knut Lundmark was an early 20th Century Swedish astronomer. Is is possible that Lundmark's Nebula is intended to refer to the Wolf-Lundmark-Melotte Galaxy, though Lundmark made numerous other contributions to the study of other galaxies.
• Medon - Originally located in Lundmark's Nebula, Medon was moved to the First Galaxy by its technologically-advanced natives.
• Nevia - The amphibious Nevians invented the first crude inertia-less drives appearing in the series. They warred on the Triplanetary League, but eventually joined Civilization when they realized that humanity was as advanced as their own species.
• Nth Space - An alternate dimension, accessed by hyper-spatial tube, where all matter is tachyonic, moving faster than the speed of light. Ploor and Ploor's sun were destroyed by planets transported from Nth Space.
• Onlo (Thrallis Nine) - See Thrale below.
• Palain Seven – An extremely cold planet and home world of Second Stage Lensman Nadreck. Like all ulta-cold planets in Smith's cosmogony, the inhabitants require a metabolic extension "into the fourth dimension" in order to survive the liquid-helium temperatures of their planetary surface. Smith suggested, with little elaboration, a twelve-point scale used to describe intelligent (and possibly other) species; on this scale, humans were classified as "AAAAAAAAAAAA" and Palanians as "ZZZZZZZZZZZZ." It is stated that a Palanian colony had existed on Pluto for millenia before the events of First Lensman, suggesting that the Palanians may have had the first inertialess drive in the First Galaxy. Within the Second Stage Lensmen, Nadreck's ultra-caution counterbalanced Kinnison's occasional near-recklessness, and it is suggested that, were the Palanians less cautious, their species rather than humanity would have given birth to the Third-Stage Lensmen.
• Ploor - The first-tier planet of Eddorian puppets and the only one with direct knowledge of the Eddorians. The leaders of Jarnevon, Kalonia, and Thrale were, unknown to the bulk of their populations or to most of Civilization, under the direct control of Ploor. The planet of a highly variable sun, the inhabitants of Ploor were forced to morph their bodies on a precise annual cycle, though none of their manifestations were even remotely human (their winter form was ZZZZ+, or nearly Palanian). The planet -- and its sun -- were destroyed by planet-sized projectiles from another dimension, with intrinsic velocity greater than the speed of light.
• Rigel Four – A superhot, high gravity world, Home of Second Stage Lensman Tregonsee.
• Tellus - or, Earth. Home to the humans, including the Kinnison and Samms lines.
• Thrale (Thrallis Two) - The capital of the Boskonian Thrale-Onlonian Empire, in Lundmark's Nebula. The inhabitants were "independently" evolved humans, like those of Klovia and many other worlds, ultimately traceable back to Arisian spores permeating space at the time of the Coalescence.
• Trenco – A planet where a major fraction of the atmosphere condenses each night and evaporates each day giving rise to exceptionally violent weather. The planet's plant life yields the illicit psychotropic thionite.
• Valeria - A high-gravity planet where natural diamonds formed in great quantity, settled by Tellurian Dutchmen who developed intense strength in response to the natural stresses of their planet, making them ideal space marines.
• Velantia Three – Home of an intelligent, winged, reptilian species, of which Second Stage Lensman Worsel is a member.

Technology

Hyper-spatial Tube: A "tunnel" through hyperspace, allowing galactic distances to be traversed in minutes, as well and allowing access to other universes. Objects and people from different starting places meeting each other in the tube pass through each other rather than interacting. The artificial, ultra-dense material "dureum" is an exception; it is therefore used to create objects and weapons capable of interacting with anything and anyone in a tube. Originally invented by the Eddorians and used for their explorations of other universes prior to their arrival in the Lensman universe, it was given to the Boskonian subject races, and eventually discovered and copied by the Patrol.

Inertialessness:

It has been suggested that Bergenholm space drive be merged into this article. (Discuss) Proposed since October 2006.

Spaceships are able to vastly exceed the speed of light by eliminating the inertia of their mass. When the "inertialess drive" (which does not actually provide propulsion) is turned on, the "free" (inertialess) ship instantaneously attains a velocity at which the force of the ship's propulsion jets is matched by friction of the medium through which it travels (such as widely scattered hydrogen molecules in the vacuum of space), avoiding the Einsteinian light-speed limit on normal (inert) matter, and so attaining a speed of about 90 parsecs per hour. Intergalactic space is even thinner, and the speed is about 100,000 parsecs per hour.

Conservation of energy is maintained; when the intertialess drive generator is switched off, the spacecraft's original velocity is restored. If a ship has traveled a great distance, inert maneuvering will be required in order to match velocity relative to the local astronomical bodies.

"Inertialess drive" generators small enough for a single person are used by Galactic Patrol staff. Patrol members can travel downward within tall buildings by falling while inertialess. Some armored spacesuits have individual "inertialess drives" installed.

When the "inertialess drive" - also known as "Bergenholm" after its inventor - is switched off, the ship instantly regains its original inert velocity, so may have to spend some time matching velocity with a planet before landing. There are similar velocity-matching difficulties with ships docking in space, and in transferring "free" passengers from one ship to another.

The "inertialess drive" has advantages as a science-fictional device because, it is said, it cannot be demonstrated that removing inertia from mass is impossible. However, Larry Niven in his short story "ARM" suggests that a field reducing inertia in matter would in effect cause time to pass faster within the field, because with reduced inertia all movements are speeded up; in the Niven story this includes mechanical motion, movements of molecules (and thus metabolic processes) and even sub-atomic particles such as photons. Alastair Reynolds describes similar consequences of partial neutralisation of inertia in "Redemption Ark", including dizziness, increased heart rate (due to blood weighing less), and physical damage. In his universe, this places a practical limit of 5-10x on the reduction of inertia. However, this does depends on whether an “inertialess drive” actually removes inertia from all the objects within its sphere of influence, or whether it just appears to from the perspective of an external observer.

Robert A. Heinlein also used an inertialess drive in Methuselah's Children, where the device was compact enough to carry in an attache case; in his case, faster than light travel was not achieved, but the whole inertialess ship acted as a large solar sail and was propelled by light pressure to almost the speed of light.

Screens: Military spaceships are protected by several layers of defensive force field "screens", including the innermost and strongest "wall screen." Smaller vehicles and even spacesuits can carry screens of lesser power.

Spaceships: The smallest are called "speeders" or "flitters" and carry only the pilot, or a very small crew. They are generally used for scouting or covert missions. Larger military ships have designations equivalent to early twentieth century surface naval vessels: Destroyers, cruisers, dreadnaughts (battleships), superdreadnaughts. Later in the series "maulers" are added; these are huge and very powerful, but slow moving. Slow moving ships are spherical; faster ones have teardrop shapes; the fastest of all are the "ultrafast" cigar-shaped speeders and later ('Dauntless'-class) superdreadnoughts.

Thought Screens: In a universe where many alien races have powerful telepathic abilities, and even mind control is possible, thought screens can be a valuable asset. They are proof against penetration by even a second-stage Lensman's mind. The Children of the Lens are able to bypass or even, if necessary, penetrate any non-Eddorian thought screen, and in the final battle the Unit and the collected Lensmen achieve even that feat.

Ultra-wave: Vibrations in the "sub-ether," used for interstellar "radio" communications and detection. Ultra-wave travels at about 19 billion times the speed of light. The use dates from the time of the latter part of Triplanetary. Sean Barrett, in GURPS Lensman, has suggested that ultra-waves form the basis for the so-called "vacuum tubes" used in the series.

Power production: Prior to the extended version of the novella Triplanetary for book publication, no out-of-the-ordinary power technologies are described; however interplanetary travel with the ship sizes and capabilities inferred requires terawatt power sources, so we can infer some version of nuclear fission or fusion power. After the advent of the Nevians and through the rest of Triplanetary, the primary power source for spaceships and planetary installations is the controlled matter-to-energy conversion of "allotropic iron", an allotrope of iron which appears to be a dense, viscous, red liquid.

By the time of First Lensman, allotropic iron is replaced by uranium in an undescribed fashion in the Bergenholm, and so it can be inferred that a total conversion engine based on uranium is used throughout that book. It is noted that power production generates radiation which can be detected by other ships at a considerable distance and cannot be perfectly screened. Stealth ships for covert missions can be fitted with large diesel generating sets, capable of powering the Bergenholm and providing limited drive power for short periods, so that the atomics can be shut down for sensitive parts of the mission.

Atomic power units appear to have a minimum feasible size which prevents their use on installations smaller than a spaceship. The Bergenholms and drivers fitted to personal space armour are powered by electrical accumulators, which despite their portable size have capacities of many myriawatt-hours and whose charging load represents a significant drain on the power stations of a less technologically advanced planet such as Delgon.

By the time of Galactic Patrol and the later novels of the series, no further developments of power technology have been described, but the power systems capacities are clearly based on refinements of total conversation technology; early in Gray Lensman, the Dauntless is described as using "30 pounds per hour" of power while inertialess and running at full thrust. Using ${\displaystyle E=mc^{2}}$, this works out to 400 trillion watts of power (or, in terms of its destructive potential, 100 kilotons TNT equivalent per second). With the advent of Medonian electrical systems following the penetration into the Second Galaxy, by the end of the series useable power on-board had been increased by another factor of a 1000.

Sometime prior to the start of Galactic Patrol the Boskonians had developed a method of using their on-board power systems as exciters to gather power from "cosmic energy" sources with an amplification factor of a million times the exciter power. The Galactic Patrol, capturing this technology during Kimball Kinnison's first major assignment, not only reverse engineered it for routine use, but also developed shields and screens to block enemy systems from drawing the power, and upgraded the power systems for their "Mauler" class of attack vessels to defeat systems reliant on cosmic energy collection.

Spaceship drive: The Bergenholm nullifies the inertia of a spaceship, but does not of itself provide any driving force. Driving projectors, or "jets", are reaction engines, using as reaction mass nascent fourth-order particles or corpuscles which are formed, inert, in the inertialess projector, by the conversion of some form of energy into matter. The process produces, as by-products, a certain amount of heat and a considerable amount of light. This light, shining through the highly tenuous gas formed of the ejected particles, produces a "flare" which makes a speeding spaceship one of the most beautiful spectacles known to man, but also makes it visually detectable at long range. Stealth ships therefore make use of "flare baffles" to prevent the escape of the light; the disadvantage is that because the waste energy cannot escape from the projector in the usual way it must be derated to prevent overheating, so baffles are only fitted when absolutely required.

Information processing: Computing technology as we understand it is practically unknown, being limited to slide rules, adding machines, and punched card tabulating machines. A "computer" is not a calculating machine but an intelligent being performing calculations by brain power with the assistance of the abovementioned limited aids. Large concentrations of computing power, as required by the C3 system of the Directrix, are implemented using several thousand Rigellians, a naturally telepathic species, in mental communication with each other.

Weapons

The science fiction sub-genre of "super-science" is nowhere more apparent in the Lensman series than in its (sometimes literally) world-shaking weapons, which deserve a category of their own.

Space-axe: Used against opponents protected by personal defensive screens and thus immune to blasters. A space-axe has an axe blade on one side and a needle-sharp spike on the other. Later their deadliness was augmented by being inlaid with, or even entirely composed of, ultra-dense dureum (see "Hyper-spatial Tube" above).

Blaster: While E.E. Smith wasn't the first to give rayguns to his heroes and villains, the DeLameter may be the first pistol which not only kills someone, but atomizes him and reduces to smoking ruin the wall behind him! The aperture of the DeLameter can be opened to emit a wide and relatively weak cone of destruction, or narrowed to emit a pencil-thin and extremely intense beam.

The Lewiston was the standard blaster pistol in the earlier time of First Lensman.

Semi-Portable: The Lensman universe equivalent of a heavy machine gun: A large beam weapon designed to be carried by more than one man, projecting a beam powerful enough to overcome personal defense screens (mounted on an individual's space armor), which cannot be penetrated by DeLameters or other hand blasters. Small enough to be used in a spaceship corridor, and held down with magnetic clamps.

Macro Beam: These ship-mounted beams can vaporize any matter in moments. Only screens can provide any defense. After the invention of primary beams, macro beams were referred to as "secondaries."

Primary Beam: These became the primary weaponry of the warships of space. A beam projector is so massively overloaded that it burns out almost instantly while emitting a beam much more intense than is otherwise possible. Invented as a dying act of desperation by a Boskonian vessel-- on which it killed each gun crew using the technique-- it was adapted in more controlled form by the Galactic Patrol, using highly-shielded primary projectors that were spent and ejected like massive shell-cases. The description sounds very similar to that proposed for nuclear-explosion pumped x-ray or gamma-ray lasers.

Duodec: In Galactic Patrol, the superior screens of a Boskonian ship are overcome with the power of the atomic explosive duodecaplylatomate, described as "the quintessence of atomic destruction", whose power is considerably greater than a nuclear explosion as produced by current real-world technology. However, its properties as regards handling and detonation appear more similar to those of a chemical explosive than to the complex detonation arrangements of a nuclear bomb. Duodec is also used by the Boskonians to self-destruct their bases to prevent capture, by Kinnison to destroy Menjo Bleeko's mining complex on Lonabar, and in many other situations calling for an extremely powerful explosive.

Allotropic iron torpedo: The primary power source for Nevian spaceships in Triplanetary is the controlled matter-to-energy conversion of "allotropic iron", an allotrope of iron which is a dense, viscous, red liquid. In conventional chemistry, allotropes are substances with the same atomic composition but different molecular arrangements. Thus, phosphorus occurs in the allotropes white phosphorus and red phosphorus; however, these transformations are purely chemical, not nuclear. Smith's fictional allotrophic iron can be made to undergo nuclear conversion as a power source, analogous to the nuclear conversion of the catalyzed copper fuel rods of The Skylark of Space. Allotropic iron can also be "sensitized" so as to undergo uncontrolled matter-to-energy conversion under a suitable stimulus, thus producing an extremely powerful explosive. A torpedo carrying a sensitized allotropic iron charge is detonated on Nevia in Triplanetary with devastating results. In later times duodec is the atomic explosive of choice, perhaps due to its apparent greater ease of handling.

Negasphere: A sphere of "negative matter" first created in Gray Lensman. The negasphere is an expression of the original Dirac Sea conception of antimatter by Paul A. M. Dirac as a "hole" in space which has been evacuated of normal matter (this is of course a gross conceptual simplification of Dirac's ideas). It seems to act like the modern conception of antimatter in some respects; if brought into contact with normal matter mutual annihilation results, releasing an enormous flood of energy. But it differs from antimatter in that it absorbs light so that it is utterly black; and tractor and pressor beams have reversed effects. Perhaps a negasphere is better described as having properties of both negative matter and negative energy.

Free Planet: An entire planet is rendered inertialess. If fitted with massive power plants and screens, it can be used as a mobile fortress with enough power to easily brush off attacks by mere spaceships. Or if properly positioned and inerted, it can be used to crush an enemy planet.

Nutcracker: In Gray Lensman, two "free planets" (see above) with opposing inert velocities were positioned on either side of an enemy planet. Simultaneously inerted, they crushed the other planet between them; such approach will crush even a "free" planet.

Sunbeam: In Second Stage Lensman, an entire solar system is converted to an ultrawave vacuum tube, with asteroids and planets as grids and plates, to focus nearly the entire output of the sun into a beam capable of melting the surface of a planet in seconds. Thus it is a defense against attack by "free" planets.

Nth Space Planet: The ultimate material weapon in the Lensman series, also called a super-nutcracker. In Children of the Lens, an expedition travels to "Nth space," another space-time continuum where physical laws are different and all matter moves faster than the speed of light. There a planet is rendered "free" (see "Free Planet" above) and moved into our universe. The planet is moved close to an enemy planet and inerted. The result is so violent that Nth space planet launched against Ploor's sun makes it go supernova, still radiating the energy of 550 million Suns several years later. It was so powerful in fact that there was a theoretical possibility that as its mass would be "some higher order of infinity" that the entire universe would coalesce around it in zero time (rather like an instantaneous Big Crunch). Fortunately Mentor assured Kit Kinnison that "operators would come into effect to prevent such an occurrence", and that untoward events would be limited to a radius of ten or fifteen parsecs.

References

• Barrett, Sean (1994). GURPS Lensman. Austin: Steve Jackson Games. ISBN 1-55634-283-7.
• Ellik, Ron and Bill Evans (1966). The Universes of E.E. Smith. Chicago: Advent:Publishers. ISBN 0-911682-0301.
• Sanders, Joe (1986). E.E. "Doc" Smith (Starmont Reader's Guide 24). Starmont House. ISBN 0-916732-73-8.
• Heinlein, Robert (1980). Expanded Universe. New York: Ace Books. ISBN 0-441-21888-1. {{cite book}}: Cite has empty unknown parameter: |coauthors= (help)

External links

• Space Shake The Lensman Anime web site.
• Gharlane's Lensmen FAQ
• Z9M9Z - A Lensman Website
• Old Earth Books Current publisher of the original E. E. Smith Lensman series, in facsimile reprints of the original Fantasy Press editions
• Red Jacket Press Publisher of the "Second Stage Lensman" Trilogy by David A. Kyle

• Articles to be merged from October 2006
• Fictional universes
• Lensman series
• Series of books
• Space opera
• Fictional planets
• Fictional telepaths