Lost in Transmission (39 page)

Shift, Barnardean
—(n) A measure of time equal to 10 Barnardean hours or 35,937.5 standard seconds. There are two shifts in a pid, and 23 pids in a Barnardean day. Attributed to Bascal Edward de Towaji Lutui.

Sila'a
—(n) A pinpoint fusion generator or “pocket star” consisting of a wellstone-sheathed neutronium core surrounded by gaseous deuterium. From the Tongan
si'i
(“small”) and
la'aa
(“sun”).

Sketchplate
—(n) A thin, rectangular block or sheet of wellstone sized and preprogrammed for the portable display and input of text, drawings, and physical simulations.

Skyhook
—(n) Any device or structure spanning the region between a planet's atmosphere and the surrounding vacuum, especially as part of a transportation system.

Smalter
—(n) A fax machine specialized for the extraction of useful elements from ore or waste, and/or the dispensing of purified elements as part of an industrial process.

Spall
—(v, n) To break up or reduce via the removal of small surface particles, as with a chisel or laser. As a noun, a particle which has been struck from the surface of a larger object.

Squozen Moon, the
(see
Lune
)

Stealth
—(n) Concealment, especially during movement or action. Colloquially, a synonym for technologically derived invisibility.

Superabsorber
—(n) Any material capable of absorbing 100% of incident light in a given wavelength band. The only known universal superabsorber (i.e., functioning at all wavelengths) is the event horizon of a hypermass. (Approximations of 100% absorption are generally referred to as “black.”)

Superfluid
—(n, adj) Any fluidized material capable of propagating with zero friction and zero viscosity. The vast majority of superfluids are either cryogenic, as with liquid helium, or supercondensed, as with neutronium.

Superinsulator
—(n) A material or device which completely forbids the passage of electrons in a given energy band. Universal superinsulators (i.e., functioning at all energies) are unknown and may be physically impossible.

Superreflector
—(n) Any material capable of reflecting 100% of incident light in a given wavelength band. No universal superreflectors are known. (Approximations of 100% reflectance are generally referred to as “mirrors.”)

Ta'ahine
—(n) A maiden or virgin, or a mature woman of high status.

Taha mano ta'u
—Traditional Tongan birthday wish. Literally: ten thousand years.

Talematangi
—(n) On the Barnardean world of Sorrow, aka Planet Two, a persistent cough brought on by atmospheric halogens and other irritants. From the Tongan
tale
(“cough”) and
matangi
(“air” or “atmosphere”).

Tazzer
—(n) A short-range beam weapon consisting of pulsed, coaxial streams of electrons and metal ions in a guide beam of blue or violet laser light. Tazzers are primarily used to induce temporary incapacity (pain, paralysis, unconsciousness), although lethal versions also exist.

Teleport valve
—(n) A device for regulating the flow of atoms or molecules between two discontinuous points in space.

Telomere
—(n) The natural end of a eukaryotic chromosome, used in biology as a regulator of cell division. The shortening of telomeres within the cells of an organism is both a marker and a determinant of geriatry. Complete erosion of the telomere results in cellular senescence and is generally considered fatal in the long term.

Terraform
—(v) To make Earthlike. In general, to match the gravity, climate, and atmosphere of a planet or planette to that of Earth, possibly including the imposition of a stable biosphere. Enclosed spaces are “climate controlled” rather than terraformed. Attributed to Jack Williamson.

Timoch
—(prop n) Capital city of the Luner nation of Imbria, with a population of approximately 2 million.

Titranium
—(n) Public domain wellstone substance characterized by moderate flexibility, extreme toughness, and a lustrous gray appearance.

Tonga
—(n) Former Earth kingdom consisting of the Tongatapu, Ha'apai, and Vava'u archipelagoes of Polynesia, and scattered islands occasionally including parts of Samoa and Fiji. Tonga was the only Polynesian nation never to be conquered or colonized by a foreign power, and was the last human monarchy prior to the Q1 establishment of the Queendom of Sol.

Tuberail
—(n) A monorail system in which the rail, usually circular in cross-section, carries power and other utilities between destinations and for the benefit of tuberail cars and podships traveling along it.

Tui Barnarda
—(n) Formal title of the King of Barnard.

Ullage
—(n) Waste, inefficiency, or loss. The space in a container which cannot practically be filled, and also the remnant contents of a container or plumbing network which cannot practically be emptied.

Upsystem
—(adj or adv) One of the six cardinal directions: away from the sun in any orientation.

Varna
—(prop n) A 640-meter-radius planette constructed in orbit around Luna by private investors during the latter years of the Queendom of Sol. Site of the Q1290 Treaty of Varna, granting Right of Return to Barnard refugees.

Vendory
—(n) A portable device consisting of a power supply, mass buffer, fax hardware, and small print plate, usually capable of drawing additional buffer mass from the atmosphere. High-quality vendories are technically capable of producing almost any device or substance, but are generally restricted by software and tradition to the production of foodstuffs and eating utensils.

Waldo
—(n) Any teleoperation system where movements of the operator's hands are replicated by handlike devices at a remote location. Attributed to Robert Heinlein.

Wellcloth
—(n) A fabric woven wholly or partially from wellstone fibers. While sheet wellstone could technically be considered a form of cloth, the term “wellcloth” is generally reserved for fabrics with weave lengths larger than 1 micrometer.

Wellglass
—(n) Any wellstone substance which is both optically transparent and electrically insulative, often employed as the default state of wellstone devices. Most typically refers to a wellstone substance closely emulating the properties of transparent silica-soda-lime (SiO
₂
, NaO, CaO) “window glass” preparations except in terms of mass and toughness. In general, natural substances containing a preponderance of silicon are the easiest to emulate in a wellstone matrix.

Wellstone
—(n) A substance consisting of fine, semiconductive fibers studded with quantum dots, capable of emulating a broad range of natural, artificial, and hypothetical materials. Typical wellstone is composed primarily of pure silicon, silicon dioxide, and gold.

Wellwood
—(n) An emulation of lignous cellulose (“wood”), often employed as the default state of wellstone devices.

Wideband
—(adj) Describes any signal, carrier, or network with a bandwidth greater than 100 MHz or an effective data rate greater than 100 Mbit/sec.

Williamson, Jack
—(prop n) American romanticist of the Old Modern period.

Zettahertz
—(n) A measure of frequency equal to 10
²¹
Hertz, or one thousand billion billion cycles per second.

appendix C

technical notes

wellstone

For those readers only now joining the series, the programmable “wellstone” material which pervades it may seem a bit startling. However, it's drawn for the most part from established science: other than mass, the observable properties of matter are determined by the electron clouds surrounding the atoms and molecules. By confining electrons in approximately atom-sized spaces, it's possible to replicate these properties, or to produce temporary new “elements” which could never occur in nature. Anyone interested in such programmable materials should check out my nonfiction book on the subject:
Hacking Matter
(Basic Books, March 2003, ISBN 0-465-04429-8).

invisibility

Near-perfect invisibility is a technically feasible (though power-hungry) application for programmable materials. Indeed, if computing power continues its relentless advance, then a form of “stealth fabric” may be achievable even with mid-twenty-first century technology. Anyone interested can look up my
Wired
article on the subject at
http://www.wired.com/wired/archive/11.08/pwr_invisible.htm

The illusion will work under most circumstances if the material can emit light as bright as the sky, as well as the light reflecting from the ground and other objects. This presents a challenge during daylight, however, since the sun is around 20,000 times brighter than the sky around it. Stealthed warriors will cast shadows if their fabric's light sources are unable to match this brightness, because the light shining “through” them will appear dimmer than the sunlight falling around their edges.

deutrelium

This is my own name for a material consisting of equal numbers of deuterium (hydrogen with one extra neutron) and helium 3 (helium with one missing neutron) atoms. Although
³
He is rare on Earth itself, it's quite common throughout the universe, in gas giant planets like Jupiter and Saturn. It's favored by fusion energy enthusiasts (particularly armchair starship designers) because when fused with deuterium, its reaction products are all charged particles, which can be contained with magnetic or electric fields. Other fusion reactions are either less energetic, more difficult to ignite, or produce neutrons or gamma rays which present a radiation hazard. Other than antimatter, deutrelium is the likeliest fuel for practical starships.

Of course, without ertial shielding these could be nowhere near as large as
Newhope
.

the planets of barnard

In the 1960s, astronomer Peter Van de Kamp claimed to have discovered, in the wobbling motion of the stars, a pair of gas giants in circular orbits around Barnard, with periods of twelve and twenty-six years. Since both alleged bodies were slightly smaller than Jupiter, it now seems clear that his instruments and methods were not sensitive enough to make this detection, although his observations continued, and he remained adamant about the discovery until his death in 1995. Meanwhile, George Gatewood published a number of papers—the most recent in the year of Van de Kamp's death—detailing the upper mass limits for Barnard planets based on the
absence
of a conclusive wobble in images taken of the star. However, the planets claimed by Van de Kamp fall within Gatewood's limits, and thus were not disproven per se.

In 2002 and 2003 I corresponded with an astronomer named Chris McCarthy (no relation to me that I know of), who'd been patiently compiling Doppler data on Barnard. He assured me that given everything he knew, a terrestrial planet like Sorrow was entirely plausible, though of course not provable with current technology. He had other measurements which promised to detail the orbits of any large gas giants that existed around the star, but as of this mid-2003 writing his results remained unpublished, and therefore politely secret. However, a related paper, “The low-level radial velocity variability in Barnard's star” by Kurster et al.,
Astronomy and Astrophysics,
v.403, p.1077–1087 (2003), tightens Gatewood's maximums with an upper mass limit of 0.87 Jupiter masses between 0.017 and 0.98 AU (8.5 to 488 light-seconds) and 3.1 Neptune masses in the “habitable zone” between 0.034 and 0.082 AU (17 to 41 light-seconds).

Interestingly, this still leaves room for Van de Kamp's planets. For the purposes of this story, I opted for the somewhat romantic notion that Van de Kamp was exactly (if flukishly) correct. (“I know of nothing to rule this out,” Chris McCarthy reassured me. “You can certainly let your imagination set the limits.”) Thus, one of the planets is named after Van de Kamp and the other after Gatewood, with the small inner planets—discovered much later and with minimal human intervention—being, like the majority of comets and asteroids here in our Old Modern Sol system, nameless. I would have loved to have named a planet after Chris McCarthy as well, but wanted to avoid the appearance that I was naming it after myself or, nepotistically, after someone in my extended family. I did name the system's first and only shipyard after Martin Kurster.

Given the small size of this system I've also abandoned the Earth-centric AU in favor of the light-minute as a planetary measuring stick. Note that P2, with its thick greenhouse atmosphere, falls just outside the habitable zone defined by Kurster for Earthlike planets. A comparison of the Sol and Barnard systems follows.

The radius of Barnard is 0.4 light-seconds. Coincidentally, this makes the star appear 1.00 degree wide in the skies of Sorrow—almost exactly twice the size of Sol in the skies of Earth. Since people tend to overestimate the size of the sun anyway, I suspect this difference would go largely unnoticed.

Planets so close to their parent stars are generally presumed to be “tidally locked,” with rotation rates synchronized to their orbital period, so that the planet always presents the same face toward the star (just as Luna does toward Earth). However, this is not always the case. Mercury is an example of a planet in “3:2 resonance,” completing two revolutions per three orbits. In a similar way, Sorrow takes 1036.8 hours to revolve around its axis, and 691.2 hours to complete an orbit around Barnard. If the planet didn't rotate at all, Barnard would assume the same position in Sorrow's sky at the same point in every orbit, and the day would be 691.2 hours long. However, the rotation has the effect of shortening this to 460.8 hours.

Barnardeans consistently refer to the day as being 460 hours long, reflecting the fact that a “Barnardean hour” is 3593.75 seconds long—6.25 seconds shorter than a standard hour. Technically speaking, the 0.8 hour day-length difference should be rounded up rather than down, but since 461 is a prime number, no convenient clock could ever be constructed around it!

I'll note that these numbers are no invention of mine; if a truly habitable planet exists around Barnard's Star, it needs to be near or just beyond the outer edge of the star's liquid water band—as far from the star's flares as possible—with a thick greenhouse atmosphere to keep things warm and protect against radiation. And preferably, yes, it should have some sort of day-night cycle rather than a pure tidal lock. Also, given the scarcity of heavy metals, it must be larger than Earth or its gravity won't hold the atmosphere down. In other words, it needs to look very much like Sorrow, or it couldn't be there at all.

notes on the tongan language

All the Tongan words used in this book are authentic. However, with hundreds of years of history between ourselves and the events of the story, I've taken some slight liberties with the meanings and nuances of certain phrases. Therefore, any use of this book as a language reference may get you some puzzled looks from native Tongans. Next time you're in the Friendly Islands, do please keep this in mind.