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发信人: emanuel (小飞象), 信区: SFworld
标 题: Fountains of Paradise - 23,24
发信站: 哈工大紫丁香 (Thu Jul 13 12:30:18 2000), 转信
发信人: Sandoval (Companion Protector), 信区: SciFiction
标 题: Fountains of Paradise - 23,24
发信站: The unknown SPACE (Tue May 30 00:46:28 2000) WWW-POST
23. Moondozer
"Your trouble, Dr. Morgan," said the man in the
wheelchair, "is that you're on the wrong planet."
"I can't help thinking," retorted Morgan, looking
pointedly at his visitor's life-support system, "that much
the same may be said of you."
The Vice-President (Investments) of Narodny Mars gave an
appreciative chuckle.
"At least I'm here only for a week - then it's back to
the Moon, and a civilised gravity. Oh, I can walk if I
really have to: but I prefer otherwise."
"If I may ask, why do you come to Earth at all?"
"I do so as little as possible, but sometimes one has to
be on the spot. Contrary to general belief; you can't do
everything by remotes. I'm sure you are aware of that."
Morgan nodded; it was true enough. He thought of all the
times when the texture of some material, the feel of rock or
soil underfoot, the smell of a jungle, the sting of spray
upon his face, had played a vital role in one of his
projects. Some day, perhaps even these sensations could be
transferred by electronics-indeed, it had already been done
so crudely, on an experimental basis, and at enormous cost.
But there was no substitute for reality; one should beware
of imitations.
"If you've visited Earth especially to meet me," Morgan
replied, "I appreciate the honour. But if you're offering me
a jobon Mars, you're wasting your time. I'm enjoying my
retirement, meeting friends and relatives I haven't seen for
years, and I've no intention of starting a new career."
"I find that surprising; after all, you're only 52. How
do you propose to occupy your time?"
"Easily. I could spend the rest of my life on any one of
a dozen projects. The ancient engineers - the Romans, the
Greeks, the Incas - they've always fascinated me, and I've
never had time to study them. I've been asked to write and
deliver a Global University course on design science.
There's a text-book I'm commissioned to write on advanced
structures. I want to develop some ideas about the use of
active elements to correct dynamic loads - winds,
earthquakes, and so forth - I'm still consultant for General
Tectonics. And I'm preparing a report on the administration
of TCC."
"At whose request? Not, I take it, Senator Collins'?"
"No," said Morgan, with a grim smile. "I thought it
would be - useful. And it hels to relieve my feelings."
"I'm sure of it. But all these activities aren't really
creative. Sooner or later they'll pall - like this beautiful
Norwegian scenery. You'll grow tired of looking at lakes and
fir trees, just as you'll grow tired of writing and talking.
You are the sort of man who will never be really happy, Dr.
Morgan, unless you are shaping your universe."
Morgan did not reply. The prognosis was much too
accurate for comfort.
"I suspect that you agree with me. What would you say if
I told you that my Bank was seriously interested in the
space elevator project?"
"I'd be sceptical. When I approached them, they said it
was a fine idea, but they couldn't put any money into it at
this stage. All available funds were needed for the
development of Mars. It's the old story - we'll be glad to
help you, when you don't need any help."
"That was a year ago; now there have been some second
thoughts. We'd like you to build the space elevator - but
not on Earth On Mars. Are you interested?"
"I might be. Go on."
"Look at the advantages. Only a third of the gravity, so
the forces involved are correspondingly smaller. The
synchronous orbit is also closer - less than half the
altitude here. So at the very start, the engineering
problems are enormously reduced. Our people estimate that
the Mars system would cost less than a tenth of the Terran
one."
"That's quite possible, though I'd have to check it."
"And that's just the beginning. We have some fierce
gales on Mars, despite our thin atmosphere - but mountains
that get completely above them. Your Sri Kanda is only five
kilometres high. We have Mons Pavonis - twenty-one
kilometres, and exactly on the equator! Better still, there
are no Martian monks with long-term leases sitting on the
summit... And there's one other reason why Mars might have
been designed for a space elevator. Deimos is only three
thousand kilometres above the stationary orbit. So we
already have a couple o million megatons sitting in exactly
the right place for the anchor."
"That will present some interesting problems in
synchronisation, but I see what you mean. I'd like to meet
the people who worked all this out."
"You can't, in real time. They're all on Mars. You'll
have to go there."
"I'm tempted, but I still have a few other questions."
"Go ahead."
"Earth must have the elevator, for all the reasons you
doubtless know. But it seems to me that Mars could manage
without it. You have only a fraction of ourspace traffic,
and a much smaller projected growth rate. Frankly, it
doesn't make a great deal of sense to me."
"I was wondering when you'd ask."
"Well, I'm asking."
"Have you heard of Project Eos?"
"I don't think so."
"Eos - Greek for Dawn - the plan to rejuvenate Mars."
"Oh, of course I know about that. It involves melting
the polar caps, doesn't it?"
"Exactly. If we could thaw out all that water and CO2
ice, several things would happen. The atmospheric density
would increase until men could wrk in the open without
spacesuits; at a later stage, the air might even be made
breathable. There would be running water, small seas - and,
above all, vegetation - the beginnings of a carefully
planned biota. In a couple of centuries, Mars could be
another Garden of Eden. It's the only planet in the solar
system we can transform with known technology: Venus may
always be too hot."
"And where does the elevator come into this?"
"We have to lift several million tons of equipment into
orbit. The only practical way to heat u Mars is by solar
mirrors, hundreds of kilometres across. And we'll need them
permanently - first to melt the ice-caps, and later to
maintain a comfortable temperature."
"Couldn't you get all this material from your asteroid
mines?"
"Some of it, of course. But the best mirrors for the job
are made of sodium, and that's rare in space. We'll have to
get it from the Tharsis salt-beds - right by the foothills
of Pavonis, luckily enough."
"And how long will all this take?"
"If there are no problems, the first stagecould be
complete in fifty years. Maybe by your hundredth birthday,
which the actuaries say you have a thirty-nine percent
chance of seeing."
Morgan laughed.
"I admire people who do a thorough job of research."
"We wouldn't survive on Mars unless we paid attention to
detail."
"Well, I'm favourably impressed, though I still have a
great many reservations. The financing, for example -"
"That's my job, Dr. Morgan. I'm the banker. You're the
engineer."
"Correct, but you seem to know a good deal about
engneering, and I've had to learn a lot of economics -
often the hard way. Before I'd even consider getting
involved in such a project, I should want a detailed budget
breakdown -"
"Which can be provided -"
"- and that would just be the start. You may not realise
that there's still a vast amount of research involved in
half-a-dozen fields - mass production of the hyperfilament
material, stability and control problems - I could go on all
night."
"That won't be necessary; our engineers have read all
your reports. What tey are proposing is a small-scale
experiment that will settle many of the technical problems,
and prove that the principle is sound -"
"There's no doubt about that."
"I agree, but it's amazing what a difference a little
practical demonstration can make. So this is what we would
like you to do. Design the minimum possible system - just a
wire with a payload of a few kilogrammes. Lower it from
synchronous orbit to Earth - yes, Earth. If it works here,
it will be easy on Mars. Then run some thing up it just to
show that rokets are obsolete. The experiment will be
relatively cheap, it will provide essential information and
basic training - and, from our point of view, it will save
years of argument. We can go to the Government of Earth,
the Solar Fund, the other interplanetary banks - and just
point to the demonstration."
"You really have worked all this out. When would you
like my answer?"
"To be honest, in about five seconds. But obviously,
there's nothing urgent about the matter. Take as long as
seems reasonable."
"Very well. Giv me your design studies, cost analyses,
and all the other material you have. Once I've been through
them, I'll let you have my decision in - oh, a week at the
most."
"Thank you. Here's my number. You can get me at any
time."
Morgan slipped the banker's ident card into the memory
slot of his communicator and checked the ENTRY CONFIRMED on
the visual display. Before he had returned the card, he had
already made up his mind. Unless there was a fundamental
flaw in the Martian analysis - and he would bet a large sum
that it as sound - his retirement was over. He had often
noted, with some amusement, that whereas he frequently
thought long and hard over relatively trivial decisions, he
had never hesitated for a moment at the major turning-points
of his career. He had always known what to do, and had
seldom been wrong.
And yet, at this stage in the game, it was better not to
invest too much intellectual or emotional capital into a
project that might still come to nothing. After the banker
had rolled out on the first stage of his journey back to
Prt Tranquillity, via Oslo and Gagarin, Morgan found it
impossible to settle down to any of the activities he had
planned for the long northern evening; his mind was in a
turmoil, scanning the whole spectrum of suddenly changed
futures.
After a few minutes of restless pacing, he sat down at
his desk and began to list priorities in a kind of reverse
order, starting with the commitments he could most easily
shed. Before long, however, he found it impossible to
concentrate on such routine matters. Far down in the depths
of his mnd something was nagging at him, trying to attract
his attention. When he tried to focus upon it, it promptly
eluded him, like a familiar but momentarily forgotten word.
With a sigh of frustration Morgan pushed himself away
from the desk, and walked out on to the verandah running
along the western face of the hotel. Though it was very
cold, the air was quite still and the sub-zero temperature
was more of a stimulus than a discomfort. The sky was a
blaze of stars, and a yellow crescent moon was sinking down
towards its reflecion in the fjord, whose surface was so
dark and motionless that it might have been a sheet of
polished ebony.
Thirty years ago he had stood at almost this same spot,
with a girl whose very appearance he could no longer clearly
recall. They had both been celebrating their first degrees,
and that had been really all they had in common. It had not
been a serious affair; they were young, and enjoyed each
other's company - and that had been enough. Yet somehow that
fading memory had brought him back to Trollshavn Fjord at
this crcial moment of his life. What would the young
student of twenty-two have thought, could he have known how
his footsteps would lead him back to this place of
remembered pleasures, three decades in his future?
There was scarcely a trace of nostalgia or self-pity in
Morgan's reverie-only a kind of wistful amusement. He had
never for an instant regretted the fact that he and Ingrid
had separated amicably, without even considering the usual
one-year trial contract. She had gone on to make three other
men moderately miserable befoe finding herself a job with
the Lunar Commission, and Morgan had lost track of her.
Perhaps, even now, she was up there on that shining
crescent, whose colour almost matched her golden hair.
So much for the past. Morgan turned his thoughts to the
future. Where was Mars? He was ashamed to admit that he did
not even know if it was visible tonight. As he ran his eye
along the path of the ecliptic, from the Moon to the
dazzling beacon of Venus and beyond, he saw nothing in all
that jewelled profusion that he could certainly idetify
with the red planet. It was exciting to think that in the
not-too-distant future he - who had never even travelled
beyond lunar orbit! - might be looking with his own eyes at
those magnificent crimson landscapes, and watching the tiny
moons pass swiftly through their phases.
In that moment the dream collapsed. Morgan stood for a
moment paralysed, then dashed back into the hotel,
forgetting the splendour of the night.
There was no general purpose console in his room, so he
had to go down to the lobby to get the infomation he
required. As luck would have it, the cubicle was occupied by
an old lady who took so long to find what she wanted that
Morgan almost pounded on the door. But at last the sluggard
left with a mumbled apology, and Morgan was face to face
with the accumulated art and knowledge of all mankind.
In his student days, he had won several retrieval
championships, racing against the clock while digging out
obscure items of information on lists prepared by
ingeniously sadistic judges. ("What was the rainfall in the
capital of he world's smallest national state on the day
when the second largest number of home runs was scored in
college baseball?" was one that he recalled with particular
affection.) His skill had improved with years, and this was
a perfectly straightforward question. The display came up in
thirty seconds, in far more detail than he really needed.
Morgan studied the screen for a minute, then shook his
head in baffled amazement.
"They couldn't possibly have overlooked that!" he
muttered. "But what can they do about it?"
Mogan pressed the HARD COPY button, and carried the
thin sheet of paper back to his room for more detailed
study. The problem was so stunningly, appallingly obvious
that he wondered if he had overlooked some equally obvious
solution and would be making a fool of himself if he raised
the matter. Yet there was no possible escape...
He looked at his watch: already after midnight. But this
was something he had to settle at once.
To Morgan's relief, the banker had not pressed his DON'T
DISTURB button. He replied immediately, sunding a little
surprised.
"I hope I didn't wake you up," said Morgan, not very
sincerely.
"No - we're just about to land at Gagarin. What's the
problem?"
"About ten teratons, moving at two kilometres a second.
The inner moon, Phobos. It's a cosmic bulldozer, going past
the elevator every eleven hours. I've not worked out the
exact probabilities, but a collision is inevitable every few
days."
There was silence for a long time from the other end of
the circuit. Then the banker said: "I could have thought of
tha. So obviously, someone has the answer. Perhaps we'll
have to move Phobos."
"Impossible: the mass is far too great."
"I'll have to call Mars. The time delay's twelve minutes
at the moment. I should have some sort of answer within the
hour."
I hope so, Morgan told himself. And it had better be
good... that is, if I really want this job.
24. The Finger of God
Dendrobium macarthiae usually flowered with the coming
of the south-west monsoon, but this year it was early. As
Johan Rajasinghe stood in his orcid house, admiring the
intricate violet-pink blossoms, he remembered that last
season he had been trapped by a torrential downpour for
half-an-hour while examining the first blooms.
He looked anxiously at the sky; no, there was little
danger of rain. It was a beautiful day, with thin, high
bands of cloud moderating the fierce sunlight. But that was
odd.
Rajasinghe had never seen anything quite like it before.
Almost vertically overhead, the parallel lanes of cloud were
broken by a circular disturbance. It appeared to bea tiny
cyclonic storm, only a few kilometres across, but it
reminded Rajasinghe of something completely different - a
knot-hole breaking through the grain in a smoothly planed
board. He abandoned his beloved orchids and stepped outside
to get a better view of the phenomenon. Now he could see
that the small whirlwind was moving slowly across the sky,
the track of its passage clearly marked by the distortion of
the cloud lanes.
One could easily imagine that the finger of God was
reaching down from heaven, tracing a furrow throgh the
clouds. Even Rajasinghe, who understood the basics of
weather control, had no idea that such precision was now
possible; but he could take a modest pride in the fact that,
almost forty years ago, he had played his part in its
achievement.
It had not been easy to persuade the surviving
superpowers to relinquish their orbital fortresses and hand
them over to the Global Weather Authority, in what was - if
the metaphor could be stretched that far - the last and most
dramatic example of beating swords into ploughshares. No
the lasers that had once threatened mankind directed their
beams into carefully selected portions of the atmosphere, or
onto heat-absorbing target areas in remote regions of the
earth. The energy they contained was trifling, compared to
that of the smallest storm; but so is the energy of the
falling stone that triggers an avalanche, or the single
neutron that starts a chain reaction.
Beyond that, Rajasinghe knew nothing of the technical
details, except that they involved networks of monitoring
satellites, and computers thatheld within their electronic
brains a complete model of the earth's atmosphere, land
surfaces and seas. He felt rather like an awestruck savage,
gaping at the wonders of some advanced technology, as he
watched the little cyclone move purposefully into the west,
until it disappeared below the graceful line of palms just
inside the ramparts of the Pleasure Gardens.
Then he glanced up at the invisible engineers and
scientists, racing round the world in their man-made
heavens.
"Very impressive," he said. "But I hope you kno exactly
what you're doing."
--
... In 2345, on the 10th anniversary of the Shivan attack
on Ross 128, the Vasudan emperor Khonsu II addressed the
newly formed GTVA General Assembly. The emperor inaugurated
an ambiguous and unprecedented joint endeavor: the GTVA
Colossus...
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