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 crucial 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 before 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 identify 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 information 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 the 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?”
Morgan 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, sounding 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 that. 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 orchid 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 be a 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 through 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. Now 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 that held 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 know exactly what you’re doing.”
25. Orbital Roulette
“I should have guessed,” said the banker ruefully, “that it would have been in one of those technical appendices that I never looked at. And now you’ve seen the whole report, I’d like to know the answer. You’ve had me worrying, ever since you raised the problem.”
“It’s brilliantly obvious,” Morgan answered, “and I should have thought of it myself.”
And I would have done – eventually – he told himself, with a fair degree of confidence. In his mind’s eye he saw again those computer simulations of the whole immense structure, twanging like a cosmic violin string, as the hours-long vibrations raced from earth to orbit and were reflected back again. And superimposed on that he replayed from memory, for the hundredth time, the scratched movie of the dancing bridge. There were all the clues he needed.
“Phobos sweeps past the tower every eleven hours and ten minutes, but luckily it isn’t moving in exactly the same plane – or we’d have a collision every time it went round. It misses on most revolutions and the danger times are exactly predictable – to a thousandth of a second, if desired. Now the elevator, like any piece of engineering, isn’t a completely rigid structure. It has natural vibration periods, which can be calculated almost as accurately as planetary orbits. So what your engineers propose to do is to tune the elevator, so that its normal oscillations – which can’t be avoided anyway – always keep it clear of Phobos. Every time the satellite passes by the structure, it isn’t there – it’s sidestepped the danger zone by a few kilometres.”