The Past Through Tomorrow (94 page)

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Authors: Robert A Heinlein

BOOK: The Past Through Tomorrow
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“Hey! Use your sick-kits like I told you. Don’t let that stuff get in the blowers.” Dimly Libby realized that the admonishment included him. He fumbled for his cellulose bag just as a second temblor shook him, but he managed to fit the bag over his mouth before the eruption occurred. When it subsided, he became aware that he was floating near the overhead and facing the door. The chief Master-at-Arms slithered in the door and spoke to McCoy.

“How are you making out?”

“Well enough. Some of the boys missed their kits.”

“Okay. Mop it up. You can use the starboard lock.” He swam out.

McCoy touched Libby’s arm. “Here, Pinkie, start catching them butterflies.” He handed him a handful of cotton waste, then took another handful himself and neatly dabbed up a globule of the slimy filth that floated about the compartment. “Be sure your sick-kit is on tight. When you get sick, just stop and wait until it’s over.” Libby imitated him as best as he could. In a few minutes the room was free of the worst of the sickening debris. McCoy looked it over, and spoke:

“Now peel off them dirty duds, and change your kits. Three or four of you bring everything along to the starboard lock.”

At the starboard spacelock, the kits were put in first, the inner door closed, and the outer opened. When the inner door was opened again the kits were gone—blown out into space by the escaping air. Pinkie addressed McCoy, “Do we have to throw away our dirty clothes too?”

“Huh uh, we’ll just give them a dose of vacuum. Take ’em into the lock and stop ’em to those hooks on the bulkheads. Tie ’em tight.”

This time the lock was left closed for about five minutes. When the lock was opened the garments were bone dry—all the moisture boiled out by the vacuum of space. All that remained of the unpleasant rejecta was a sterile powdery residue. McCoy viewed them with approval. “They’ll do. Take them back to the compartment. Then brush them—hard—in front of the exhaust blowers.”

The next few days were an eternity of misery. Homesickness was forgotten in the all-engrossing wretchedness of spacesickness. The Captain granted fifteen minutes of mild acceleration for each of the nine meal periods, but the respite accentuated the agony. Libby would go to a meal, weak and ravenously hungry. The meal would stay down until free flight was resumed, then the sickness would hit him all over again.

On the fourth day he was seated against a bulkhead, enjoying the luxury of a few remaining minutes of weight while the last shift ate, when McCoy walked in and sat down beside him. The gunner’s mate fitted a smoke filter over his face and lit a cigarette. He inhaled deeply and started to chat.

“How’s it going, bud?”

“All right, I guess. This spacesickness—Say, McCoy, how do you ever get used to it?”

“You get over it in time. Your body acquires new reflexes, so they tell me. Once you learn to swallow without choking, you’ll be all right. You even get so you like it. It’s restful and relaxing. Four hours sleep is as good as ten.”

Libby shook his head dolefully. “I don’t think I’ll ever get used to it.”

“Yes, you will. You’d better anyway. This here asteroid won’t have any surface gravity to speak of; the Chief Quartermaster says it won’t run over two per cent Earth normal. That ain’t enough to cure spacesickness. And there won’t be any way to accelerate for meals either.”

Libby shivered and held his head between his hands.

Locating one asteroid among a couple of thousand is not as easy as finding Trafalgar Square in London—especially against the star-crowded backdrop of the galaxy. You take off from Terra with its orbital speed of about nineteen miles per second. You attempt to settle into a composite conoid curve that will not only intersect the orbit of the tiny fast-moving body, but also accomplish an exact rendezvous. Asteroid HS-5388, ‘Eighty-eight,’ lay about two and two-tenths astronomical units out from the sun, a little more than two hundred million miles; when the transport took off it lay beyond the sun better than three hundred million miles. Captain Doyle instructed the navigator to plot the basic ellipsoid to tack in free flight around the sun through an elapsed distance of some three hundred and forty million miles. The principle involved is the same as used by a hunter to wing a duck in flight by ‘leading’ the bird in flight. But suppose that you face directly into the sun as you shoot; suppose the bird can not be seen from where you stand, and you have nothing to aim by but some old reports as to how it was flying when last seen?

On the ninth day of the passage Captain Doyle betook himself to the chart room and commenced punching keys on the ponderous integral calculator. Then he sent his orderly to present his compliments to the navigator and to ask him to come to the chartroom. A few minutes later a tall heavyset form swam through the door, steadied himself with a grabline and greeted the captain.

“Good morning, Skipper.”

“Hello, Blackie.” The Old Man looked up from where he was strapped into the integrator’s saddle. “I’ve been checking your corrections for the meal time accelerations.”

“It’s a nuisance to have a bunch of ground-lubbers on board, sir.”

“Yes, it is, but we have to give those boys a chance to eat, or they couldn’t work when we got there. Now I want to decelerate starting about ten o’clock, ship’s time. What’s our eight o’clock speed and co-ordinates?”

The Navigator slipped a notebook out of his tunic. “Three hundred fifty-eight miles per second; course is right ascension fifteen hours, eight minutes, twenty-seven seconds, declination minus seven degrees, three minutes; solar distance one hundred and ninety-two million four hundred eighty thousand miles. Our radial position is twelve degrees above course, and almost dead on course in R.A. Do you want Sol’s co-ordinates?”

“No, not now.” The captain bent over the calculator, frowned and chewed the tip of his tongue as he worked the controls. “I want you to kill the acceleration about one million miles inside Eighty-eight’s orbit. I hate to waste the fuel, but the belt is full of junk and this damned rock is so small that we will probably have to run a search curve. Use twenty hours on deceleration and commence changing course to port after eight hours. Use normal asymptotic approach. You should have her in a circular trajectory abreast of Eighty-eight, and paralleling her orbit by six o’clock tomorrow morning. I shall want to be called at three.”

“Aye aye, sir.”

“Let me see your figures when you get ’em. I’ll send up the order book later.”

The transport accelerated on schedule. Shortly after three the Captain entered the control room and blinked his eyes at the darkness. The sun was still concealed by the hull of the transport and the midnight blackness was broken only by the dim blue glow of the instrument dials, and the crack of light from under the chart hood. The Navigator turned at the familiar tread.

“Good morning, Captain.”

“Morning, Blackie. In sight yet?”

“Not yet. We’ve picked out half a dozen rocks, but none of them checked.”

“Any of them close?”

“Not uncomfortably. We’ve overtaken a little sand from time to time.”

“That can’t hurt us—not on a stern chase like this. If pilots would only realize that the asteroids flow in fixed directions at computable speeds nobody would come to grief out here.” He stopped to light a cigarette. “People talk about space being dangerous. Sure, it used to be; but I don’t know of a case in the past twenty years that couldn’t be charged up to some fool’s recklessness.”

“You’re right, Skipper. By the way, there’s coffee under the chart hood.”

“Thanks; I had a cup down below.” He walked over by the lookouts at stereoscopes and radar tanks and peered up at the star-flecked blackness. Three cigarettes later the lookout nearest him called out.

“Light ho!”

“Where away?”

His mate read the exterior dials of the stereoscope. “Plus point two, abaft one point three, slight drift astern.” He shifted to radar and added, “Range seven nine oh four three.”

“Does that check?”

“Could be, Captain. What is her disk?” came the Navigator’s muffled voice from under the hood. The first lookout hurriedly twisted the knobs of his instrument, but the Captain nudged him aside.

“I’ll do this, son.” He fitted his face to the double eye guards and surveyed a little silvery sphere, a tiny moon. Carefully he brought two illuminated cross-hairs up until they were exactly tangent to the upper and lower limbs of the disk. “Mark!”

The reading was noted and passed to the Navigator, who shortly ducked out from under the hood.

“That’s our baby, Captain.”

“Good.”

“Shall I make a visual triangulation?”

“Let the watch officer do that. You go down and get some sleep. I’ll ease her over until we get close enough to use the optical range finder.”

“Thanks, I will.”

Within a few minutes the word had spread around the ship that Eighty-eight had been sighted. Libby crowded into the starboard troop deck with a throng of excited mess mates and attempted to make out their future home from the view port. McCoy poured cold water on their excitement.

“By the time that rock shows up big enough to tell anything about it with your naked eye we’ll all be at our grounding stations. She’s only about a hundred miles thick, yuh know.”

And so it was. Many hours later the ship’s announcer shouted:

“All hands! Man your grounding stations. Close all air-tight doors. Stand by to cut blowers on signal.”

McCoy forced them to lie down throughout the ensuing two hours. Short shocks of rocket blasts alternated with nauseating weightlessness. Then the blowers stopped and check valves clicked into their seats. The ship dropped free for a few moments—a final quick blast—five seconds of falling, and a short, light, grinding bump. A single bugle note came over the announcer, and the blowers took up their hum.

McCoy floated lightly to his feet and poised, swaying, on his toes. “All out, troops—this is the end of the line.”

A short chunky lad, a little younger than most of them, awkwardly emulated him, and bounded toward the door, shouting as he went, “Come on, fellows! Let’s go outside and explore!”

The Master-at-Arms squelched him. “Not so fast, kid. Aside from the fact that there is no air out there, go right ahead. You’ll freeze to death, burn to death, and explode like a ripe tomato. Squad leader, detail six men to break out spacesuits. The rest of you stay here and stand by.”

The working party returned shortly loaded down with a couple of dozen bulky packages. Libby let go the four he carried and watched them float gently to the deck. McCoy unzipped the envelope from one suit, and lectured them about it.

“This is a standard service type, general issue, Mark IV, Modification 2.” He grasped the suit by the shoulders and shook it out so that it hung like a suit of long winter underwear with the helmet lolling helplessly between the shoulders of the garment. “It’s self-sustaining for eight hours, having an oxygen supply for that period. It also has a nitrogen trim tank and a carbon-dioxide-water-vapor cartridge filter.”

He droned on, repeating practically verbatim the description and instructions given in training regulations. McCoy knew these suits like his tongue knew the roof of his mouth; the knowledge had meant his life on more than one occasion.

“The suit is woven from glass fibre laminated with non-volatile asbesto-cellutite. The resulting fabric is flexible, very durable; and will turn all rays normal to solar space outside the orbit of Mercury. It is worn over your regular clothing, but notice the wire-braced accordion pleats at the major joints. They are so designed as to keep the internal volume of the suit nearly constant when the arms or legs are bent. Otherwise the gas pressure inside would tend to keep the suit blown up in an erect position, and movement while wearing the suit would be very fatiguing.

“The helmet is moulded from a transparent silicone, leaded and polarized against too great ray penetration. It may be equipped with external visors of any needed type. Orders are to wear not less than a number-two amber on this body. In addition, a lead plate covers the cranium and extends on down the back of the suit, completely covering the spinal column.

“The suit is equipped with two-way telephony. If your radio quits, as these have a habit of doing, you can talk by putting your helmets in contact. Any questions?”

“How do you eat and drink during the eight hours?”

“You don’t stay in ’em any eight hours. You can carry sugar balls in a gadget in the helmet, but you boys will always eat at the base. As for water, there’s a nipple in the helmet near your mouth which you can reach by turning your head to the left. It’s hooked to a built-in canteen. But don’t drink any more water when you’re wearing a suit than you have to. These suits ain’t got any plumbing.”

Suits were passed out to each lad, and McCoy illustrated how to don one. A suit was spread supine on the deck, the front zipper that stretched from neck to crotch was spread wide and one sat down inside this opening, whereupon the lower part was drawn on like long stockings. Then a wiggle into each sleeve and the heavy flexible gauntlets were smoothed and patted into place. Finally an awkward backward stretch of the neck with shoulders hunched enabled the helmet to be placed over the head.

Libby followed the motions of McCoy and stood up in his suit. He examined the zipper which controlled the suit’s only opening. It was backed by two soft gaskets which would be pressed together by the zipper and sealed by internal air pressure. Inside the helmet a composition mouthpiece for exhalation led to the filter.

McCoy bustled around, inspecting them, tightening a belt here and there, instructing them in the use of the external controls. Satisfied, he reported to the conning room that his section had received basic instruction and was ready to disembark. Permission was received to take them out for thirty minutes acclimatization.

Six at a time, he escorted them through the air lock, and out on the surface of the planetoid. Libby blinked his eyes at the unaccustomed luster of sunshine on rock. Although the sun lay more than two hundred million miles away and bathed the little planet with radiation only one fifth as strong as that lavished on mother Earth, nevertheless the lack of atmosphere resulted in a glare that made him squint. He was glad to have the protection of his amber visor. Overhead the sun, shrunk to penny size, shone down from a dead black sky in which unwinking stars crowded each other and the very sun itself.

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