Heavy Planet (59 page)
Authors: Hal Clement
At least, the two could live on board for a time. One of their first acts had been to “hand”-pump the feed tank which kept air bubbling through the life-support
medium, and to satisfy themselves that most of the plants were still alive. The next problem was navigation.
medium, and to satisfy themselves that most of the plants were still alive. The next problem was navigation.
Benj told his friend as much as possible about his location, that of the rest of the crew, and the
Kwemb/y
’s present rate and direction of travel. There was no problem about using the information. Beetchermarlf could determine direction easily enough. The stars were visible and he had a perfectly good magnetic compass. Dhrawn’s magnetic field was a good deal stronger than Earth’s, to the consternation of the scientists who had long since taken for granted a correlation between magnetic field and rotation rate for ordinary planets.
Kwemb/y
’s present rate and direction of travel. There was no problem about using the information. Beetchermarlf could determine direction easily enough. The stars were visible and he had a perfectly good magnetic compass. Dhrawn’s magnetic field was a good deal stronger than Earth’s, to the consternation of the scientists who had long since taken for granted a correlation between magnetic field and rotation rate for ordinary planets.
The discussion which produced a detailed operation plan was shorter than the one preceding the oxygen test, though it still involved the long relay. Neither Dondragmer nor the helmsmen had any serious doubts about what to do or how to do it.
Beetchermarlf was far younger than Takoorch, but there seemed no question as to who was in charge aboard. The fact that Benj always signalled Beetch by name, rather than signaling the
Kwembly
formally, may have contributed to the young one’s authority. Easy and several of the other human beings suspected that Takoorch, in spite of his willingness to discuss his own past accomplishments, was in no great hurry to take on too much responsibility. He tended to agree with Beetchermarif’s suggestions either at once or after only token arguments.
Kwembly
formally, may have contributed to the young one’s authority. Easy and several of the other human beings suspected that Takoorch, in spite of his willingness to discuss his own past accomplishments, was in no great hurry to take on too much responsibility. He tended to agree with Beetchermarif’s suggestions either at once or after only token arguments.
“We’re still adrift, and unless this river has some very funny loops farther down we’ll never get any closer to the others with its help,” the younger Mesklinite summarized at last. “The first job will be to get paddles on some of the powered trucks. Trying to do it with all of them will take forever; a couple of outboard-row ones aft, and maybe a central one forward should give control. With power available on other drivers we can either pull off or get safely ashore if we run aground. Tak and I will go outside and start work right now. You keep an eye on us as much as you can, Benj; we’ll leave the set where it is.”
Beetchermarlf did not wait for an answer. He and his companion suited up once more and broke out the paddles which were designed to be pinned onto the treads of the drivers. These had been tested on Mesklin but had never yet been used on Dhrawn; no one really knew how well they would work. Their area was small, since there was little clearance for them above the trucks, and some of that small area was taken up by a plastic shield designed to fold them flat as they were riding forward on the top side of the trucks. However, it had been proved that they would supply some thrust. What this would accomplish remained to be seen; the
Kwembly
was floating higher in the ammonia-water solution of Dhrawn, of course, than she had in the liquid hydrocarbon ocean of the world where she had been made.
Kwembly
was floating higher in the ammonia-water solution of Dhrawn, of course, than she had in the liquid hydrocarbon ocean of the world where she had been made.
Installation of the fins and shields was a long and awkward job for two workers. The pieces could be taken out only one at a time, since there was nowhere to put them down with the cruiser afloat. Safety lines persistently got
in the way. Mesklinite pincers are rather less effective handling organs than are human fingers, though this is somewhat offset by the fact that their owner can use all four pairs of them simultaneously and in coordination—he has no asymmetry corresponding to human right-or left-handedness.
in the way. Mesklinite pincers are rather less effective handling organs than are human fingers, though this is somewhat offset by the fact that their owner can use all four pairs of them simultaneously and in coordination—he has no asymmetry corresponding to human right-or left-handedness.
The need for artificial lights was still another bother. As it turned out, getting twelve paddles and one shield on each of three drivers took a total of almost fifteen hours. It could, Beetchermarlf assured Benj, have been accomplished in two with four workers on each truck.
By this time the trackers had learned that the
Kwembly
was not getting any farther from the camp, though she was still moving. Apparently she had been caught in an eddy some four miles in diameter. Beetchermarlf took advantage of this when he was finally ready to apply power; he waited until the human analysts could tell him that he was being carried south before he set the three finned trucks running. For some seconds it was not apparent that the power was doing any good; then, very slowly, helmsmen and humans alike saw that the great hull was moving gently forward. The Mesklinites could see from the bridge a feeble excuse for a bow wave; the human beings, looking aft, were able to detect small ripples spreading back from the sides. Beetchermarlf swung his helm hard over to bring the bow in line with Sol and Fomalhaut. For nearly half a minute he was left wondering whether there would be any response; then the stars began to swing overhead as the long hull swerved majestically. Once started it was hard to stop; he overcontrolled many times and for a period of many minutes, sometimes by as much as a full right angle, before getting the feel of the vessel. Then for nearly an hour he managed to hold a southerly heading, though he had no idea of his actual course at first. He could guess from the earlier information that the eddy would be bearing him in the same direction at the start, but then it would presumably carry him eastward.
Kwembly
was not getting any farther from the camp, though she was still moving. Apparently she had been caught in an eddy some four miles in diameter. Beetchermarlf took advantage of this when he was finally ready to apply power; he waited until the human analysts could tell him that he was being carried south before he set the three finned trucks running. For some seconds it was not apparent that the power was doing any good; then, very slowly, helmsmen and humans alike saw that the great hull was moving gently forward. The Mesklinites could see from the bridge a feeble excuse for a bow wave; the human beings, looking aft, were able to detect small ripples spreading back from the sides. Beetchermarlf swung his helm hard over to bring the bow in line with Sol and Fomalhaut. For nearly half a minute he was left wondering whether there would be any response; then the stars began to swing overhead as the long hull swerved majestically. Once started it was hard to stop; he overcontrolled many times and for a period of many minutes, sometimes by as much as a full right angle, before getting the feel of the vessel. Then for nearly an hour he managed to hold a southerly heading, though he had no idea of his actual course at first. He could guess from the earlier information that the eddy would be bearing him in the same direction at the start, but then it would presumably carry him eastward.
It was some time, however, before the directional antennae on the shadow satellites and the computers in the station could confirm this guess. About the time they did, the
Kwembly
ran gently aground.
Kwembly
ran gently aground.
Beetchermarlf instantly shifted drive power to the two trucks farthest forward which had power boxes, letting the paddle-equipped ones idle, and pulled his cruiser out on the shore.
“I’m out of the lake,” he reported. “Minor problem. If I travel for any distance on land with the paddles in place I’ll wear them out. If it turns out that I’m on an island, or have to go back to the water for any other reason, an awful lot of time will have been wasted taking them off and putting them on again. My first thought is to do some exploring on foot, leaving the ship right here, to get some idea of what the chances of staying ashore may be. It will take a long time, but not nearly as long as waiting for daylight. I’ll be glad of advice from you humans or orders from the captain; we’ll wait.”
Dondragmer, when this was relayed to him, was prompt with his answer.
“Don’t go out. Wait until the map-makers up above can decide whether
you are on the same side of the river as we are, or not. As I picture the map they’ve described, there’s a good chance that the eddy carried you to the east side, which would be the right bank; we’re on the left. If they are even moderately sure of this, get back into the water and head west until they think you’re past it, no, second thought. Go until they think you’re opposite its mouth, then head south once more. I’d like to find out whether you can travel upstream with any speed at all. I know it will be slow; it may turn out that you can’t travel at all in some places along the bank.”
you are on the same side of the river as we are, or not. As I picture the map they’ve described, there’s a good chance that the eddy carried you to the east side, which would be the right bank; we’re on the left. If they are even moderately sure of this, get back into the water and head west until they think you’re past it, no, second thought. Go until they think you’re opposite its mouth, then head south once more. I’d like to find out whether you can travel upstream with any speed at all. I know it will be slow; it may turn out that you can’t travel at all in some places along the bank.”
“I’ll tell Beetch and the map people, Captain,” answered Benj. “I’ll try to get a copy of their map and keep it up to date down here; that may save some time in the future.”
The directional data was not, as it happened, definitive. The location of the
Kwembly
could be established well enough, but the course of the river down which she had come was much less certain. The checks were many miles apart, but sufficient in number to show that the river was decidedly crooked. After some further discussion, it was decided that Beetchermarlf should get back afloat and head westward as close to shore as he could; preferably within sight of it, if the range of his lights and the slope of the lake bottom would permit it. If he could find the river mouth by sight, he was to head up it as Dondragmer had wished; if not, he was to continue along the shore until the men above were reasonably certain that he had passed the rivermouth, then turn south.
Kwembly
could be established well enough, but the course of the river down which she had come was much less certain. The checks were many miles apart, but sufficient in number to show that the river was decidedly crooked. After some further discussion, it was decided that Beetchermarlf should get back afloat and head westward as close to shore as he could; preferably within sight of it, if the range of his lights and the slope of the lake bottom would permit it. If he could find the river mouth by sight, he was to head up it as Dondragmer had wished; if not, he was to continue along the shore until the men above were reasonably certain that he had passed the rivermouth, then turn south.
It did prove possible to keep the shore within range of the
Kwembly
’s lights, but it took over two hours to reach the river. This had made a wide westward bend which had been missed in the checks of the cruiser’s position during the downstream drift; then it turned again and entered the lake on an eastward slant which presumably caused the counterclockwise eddy. One of the planetographers remarked that you couldn’t blame the eddy on Coriolis force because the lake was only seven degrees from the equator and on the south side, at that, of a planet which took two months to rotate.
Kwembly
’s lights, but it took over two hours to reach the river. This had made a wide westward bend which had been missed in the checks of the cruiser’s position during the downstream drift; then it turned again and entered the lake on an eastward slant which presumably caused the counterclockwise eddy. One of the planetographers remarked that you couldn’t blame the eddy on Coriolis force because the lake was only seven degrees from the equator and on the south side, at that, of a planet which took two months to rotate.
The delta, which caused the shoreline to turn north briefly, was a warning. Beetchermarlf at the helm and Takoorch at the port wing of the bridge sent the
Kwembly
groping around the rather irregular peninsula, slowing noticeably several times as the trucks dragged in soft bottom silt, and finally found their way into a clear channel and headed into its current.
Kwembly
groping around the rather irregular peninsula, slowing noticeably several times as the trucks dragged in soft bottom silt, and finally found their way into a clear channel and headed into its current.
This was not swift, but the
Kwembly
still wasn’t afloat. The Mesklinites were in no hurry; Dondragmer gave six hours and more to the experiment of fighting the stream. They made about ten miles progress in that time. If that rate could be maintained, the cruiser would be back at the camp by a day or two after midnight, that is, in a week or so by human reckoning.
Kwembly
still wasn’t afloat. The Mesklinites were in no hurry; Dondragmer gave six hours and more to the experiment of fighting the stream. They made about ten miles progress in that time. If that rate could be maintained, the cruiser would be back at the camp by a day or two after midnight, that is, in a week or so by human reckoning.
It was impatience which changed the travel plans. This could not, of course, be blamed on any Mesklinite; it was Aucoin, of all people, who decided that a mile and a half an hour was not satisfactory. Dondragmer did not feel strongly about the matter; he agreed that research might as well be worked into the trip
if possible. At the planner’s suggestion he sent Beetchermarlf angling westward toward what was presumably the near bank of the river. The land seemed traversable. With some misgiving he had the helmsmen remove the paddles.
if possible. At the planner’s suggestion he sent Beetchermarlf angling westward toward what was presumably the near bank of the river. The land seemed traversable. With some misgiving he had the helmsmen remove the paddles.
Removal proved much easier than installation, since the vehicle was now on dry land. Things could be laid down and life lines were not needed. Benj, on his next visit to the communication room, found the
Kwembly
cruising smoothly south at about ten miles an hour over flat country, interrupted by an occasional outcropping of rock and studded here and there with scrubby brush, the highest life form so far encountered on Dhrawn. The surface was firm sediment; the planetologists judged the area to be a flood plain, which seemed reasonable even to Benj.
Kwembly
cruising smoothly south at about ten miles an hour over flat country, interrupted by an occasional outcropping of rock and studded here and there with scrubby brush, the highest life form so far encountered on Dhrawn. The surface was firm sediment; the planetologists judged the area to be a flood plain, which seemed reasonable even to Benj.
Beetchermarlf was willing to talk as usual, but it could be seen that his attention was not entirely on conversation. Both he and Takoorch were looking ahead as sharply as their eyesight and the
Kwemhly
’s lights would permit. There was no assurance that the going was safe; without air-scouting, the ten-mile speed was all they dared use. Anything faster would have been overrunning their lights. Whenever other duties, such as airplant maintenance, had to be performed, they stopped the cruiser and did the work together. One set of eyes, they felt, was not enough for safe travel.
Kwemhly
’s lights would permit. There was no assurance that the going was safe; without air-scouting, the ten-mile speed was all they dared use. Anything faster would have been overrunning their lights. Whenever other duties, such as airplant maintenance, had to be performed, they stopped the cruiser and did the work together. One set of eyes, they felt, was not enough for safe travel.
Every now and then, as the hours wore on, whoever was at the helm would begin to feel the treacherous assurance that there could be no danger; that they had, after all, come scores of miles now without having to change heading except to keep the river in sight. A human being would have increased the running speed bit by bit. The Mesklinite reaction was to stop and rest. Even Takoorch knew that when he was feeling tempted to act against the dictates of elementary common sense, it was time to do something about his own condition. Discovering the vehicle halted when he came to the screens on one occasion, Aucoin assumed it was a regular air-maintenance stop; but then he saw one of the Mesklinites sprawled idly on the bridge. The set had been put back in its old location, giving a view forward over the helm. Asked why the cruiser was not traveling, Takoorch simply replied that he had found himself getting casual. The administrator left in a very thoughtful mood.
Eventually, this care paid off, or seemed to.
For some miles the outcroppings of bed rock had been more and more frequent, though generally smaller, closer together, and more angular. The planetologists had been making guesses, futile ones with so little information, about the underlying stratigraphy. The basic surface was still hard-packed sediment, but the watchers suspected that it might be getting shallower, and that some time soon the
Kwemhly
might find herself on the same sort of bare rock that formed the substrate at Dondragmer’s camp.
Kwemhly
might find herself on the same sort of bare rock that formed the substrate at Dondragmer’s camp.
The helmsmen occasionally found it necessary now to weave slightly left or right to avoid the rock outcroppings; they even had to slow down a little from time to time. Several times in the past few hours the planetologists had
rather plaintively suggested that the cruiser stop before it was too late, and pick up samples of the sediment she was running over even if the rocks were too big to collect. Aucoin simply pointed out that it would be a year or two before the sample could get up to the station anyway, and refused; the scientists retorted that a year was much better than the time which would be needed if the specimens weren’t collected.
rather plaintively suggested that the cruiser stop before it was too late, and pick up samples of the sediment she was running over even if the rocks were too big to collect. Aucoin simply pointed out that it would be a year or two before the sample could get up to the station anyway, and refused; the scientists retorted that a year was much better than the time which would be needed if the specimens weren’t collected.
But when the
Kwembly
stopped, it was on Beetchermarlf’s initiative. It was a minor thing, or seemed to be; the soil ahead seemed a little darker, with a very sharp boundary between it and the surface under the cruiser. The line was not noticeable on the vision screen, but the Mesklinites spotted it simultaneously and, without words, agreed that close examination was in order. Beetchermarlf called the station to inform the human beings and his captain that he and Takoorch would be going outside for a time, and described the situation. Easy, translating the message, was promptly begged by two planetologists to persuade the Mesklinites to bring samples aboard. She assumed that even Aucoin would hardly object under the circumstances, and agreed to ask them when she called back with Dondragmer’s clearance.
Kwembly
stopped, it was on Beetchermarlf’s initiative. It was a minor thing, or seemed to be; the soil ahead seemed a little darker, with a very sharp boundary between it and the surface under the cruiser. The line was not noticeable on the vision screen, but the Mesklinites spotted it simultaneously and, without words, agreed that close examination was in order. Beetchermarlf called the station to inform the human beings and his captain that he and Takoorch would be going outside for a time, and described the situation. Easy, translating the message, was promptly begged by two planetologists to persuade the Mesklinites to bring samples aboard. She assumed that even Aucoin would hardly object under the circumstances, and agreed to ask them when she called back with Dondragmer’s clearance.
The captain, this time, approved the sortie, suggesting only that it be preceded by a careful look around from the bridge with the aid of the spotlights. This proved useful. A hundred yards ahead, not too far out of the range of the running lights, a small stream ran across their path and emptied into the river. Sweeping the light to starboard, this tributary could be seen arcing around parallel to the cruiser’s path from the north, then reversing its curve somewhat astern of the big vehicle and disappearing to the northwest. The
Kwembly
was on a peninsula some two hundred yards wide and not quite as long, bounded on the east—left—by the main river she had been following and on the other sides by the small tributary. It seemed likely to Mesklinites and human beings alike that the change in soil color which had caught the helmsmen’s attention was caused by wetting from the smaller stream, but no one was sure enough of it to cancel the proposed trip outside. Aucoin was not present.
Kwembly
was on a peninsula some two hundred yards wide and not quite as long, bounded on the east—left—by the main river she had been following and on the other sides by the small tributary. It seemed likely to Mesklinites and human beings alike that the change in soil color which had caught the helmsmen’s attention was caused by wetting from the smaller stream, but no one was sure enough of it to cancel the proposed trip outside. Aucoin was not present.
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