The Black Star Passes Part 25

"But now, Wade, I wish you'd see if you can determine the density of the stuff. You're more used to those determinations and that type of manipulation than we are. When you get through, we may be able to show you some interesting results ourselves!"

Wade picked up a tiny chip of the light-metal and headed for his own laboratory. Here he set up his Jolly balance, and began to work on the fragment. His results were so amazing that he checked and rechecked his work, but always with the same answer. Finally he returned to the main lab where Arcot and Morey were busy at the construction of a large and complicated electro-static apparatus.

"What did you find?" called out Arcot, as he saw Wade reenter the room.

"Hold your report a second and give us a hand here, will you? I have a laboratory scale apparatus of the type the Kaxorians used in the storage of light. They've known, ever since they began working with them, that their machines would release the energy with more than normal violence, if certain changes were made in them. That is, the light condenser, the device that stored the photons so close to each other, would also serve to urge them apart. I've made the necessary changes, and now I'm trying to set up the apparatus to work on solid light-matter. It was developed for gaseous material, and it's a rather tricky thing to change it over.

But I think we've almost got it.

"Wade, will you connect that to the high frequency oscillator there--no--through that counterbalanced condenser. We may have to change the oscillator frequency quite a bit, but a variable condenser will do that.

"Now, what results did you get?"

Wade shook his head doubtfully. "We all know it's amazing stuff--and of course, it must be heavy--but still--well, anyway, I got a density of 103.5!"

"Whewww--103.5! Lord! That's almost five times as heavy as the heaviest metal hitherto known. There's about half a cubic foot of the material; that would mean about 4000 pounds for the whole ma.s.s, or two tons. No wonder we couldn't lift the plate!"

They stopped their work on the Kaxorian apparatus to discuss the amazing results of the density test, but now they fell to again, rapidly a.s.sembling the device, for each was a trained experimenter. With all but the final details completed, Arcot stood back and surveyed their handiwork.

"I think we'll have enough urge to cause disintegration right here," he said, "but I want to make sure, and so, before we set up the case over it, I think we may as well put that big magnet in place, and have it there to help in the work of disintegration, if need be."

At last the complete apparatus was set up, and the tiny bit of light-matter they were to work on was placed on the table of a powerful Atchinson projector microscope, the field of view being in the exact center of the field of both the magnet and the coil. Carefully, then, step by step, Arcot, Morey and Wade went over their work, checking and rechecking.

"Well, we're ready," said Arcot finally, as he placed the projector screen in position and dimmed the lights in the room. A touch of the switch, and the projection screen was illuminated with the greatly enlarged image of the tiny sc.r.a.p of light-metal.

With his hand on the switch, Arcot spoke to the other two. "I won't say there's _no_ danger, since we haven't done this before; and if all the energy should be released at once, it'll blow the top out of the building. But I'm reasonably sure that it will work safely. Any objections?"

Wade shook his head, and Morey said: "I can't see any flaws in our work."

Arcot nodded, and unconsciously tensing, he closed the switch. This put the powerful Arcot oscillator tubes into action, and the power was ready for application.

Slowly he closed the rheostat and put the power into the coil. The little sliver of metal on the slide seemed to throb a bit, and its outline grew hazy; but at last, with full power on, the release was so slow as to be imperceptible.

"Guess we need the magnet after all; I'll put it on this time."

He opened the coil circuit and closed the magnet circuit at half voltage, then again he increased the current through the rheostat. This time the plate throbbed quite violently, it took the appearance of a bit of iodine. Dense vapors began pouring from it, and instantly those vapors became a blindingly brilliant flood of light. Arcot had snapped open the switch the moment he saw this display start, and it had had little time to act, for the instant the circuit was opened, it subsided.

But even in that brief time, the light aluminum screen had suddenly become limp and slumped down, molten! The room was unbearably hot, and the men were half blinded by the intensity of the light.

"It works!" yelled Wade. "It works! That sure was hot, too--it's roasting in here." He flung open a window. "Let's have some air."

Arcot and Morey gripped hands with a broad grin. That display meant that Earth and Venus would have s.p.a.ce s.h.i.+ps with which to fight s.p.a.ce s.h.i.+ps.

Reason enough for their joy.

Though they had made an unusual amount of progress already, there was still a great deal of development work to be done. Fuller was needed, Arcot decided, so he called the elder Morey and requested his services if he could be spared from his present work. He could, and would arrive later that day.

When Fuller appeared about mid-afternoon, he found the three friends already at work on the development of a more compact apparatus than the makes.h.i.+ft hookup used in making that first release mechanism.

"And so you can see," said Arcot as he finished his summary of their work to that point, "we still have quite a job ahead of us. I'm now trying to find some data for you to work on, but I can tell you this: We'll need a s.h.i.+p that has plenty of strength and plenty of speed. There will be the usual power plant, of course; the generators, the power-tube board, and the electro-magnetic relays for the regular molecular motion controls. Then, in addition, we must have controls for the ray projector, though that must wait a while, for Dad is working on a method of doubling our range.... Oh yes, the driving units will be inside the s.h.i.+p now, for all our power will come from the energy of the light-matter."

They spent the next hour in discussing the manifold details involved in the design of their s.p.a.ce s.h.i.+p: the mechanism involved in transferring the light-energy to the drivers; a means of warming the s.h.i.+p in interstellar s.p.a.ce; a main horizontal drive for forward and backward motion as well as braking; three smaller vertical power units to give them freedom of direction in climb or descent; other smaller horizontal power units for turning and moving sideways.

The s.h.i.+ps, they decided, must be capable of six or seven thousand miles a second. They would need three types of s.h.i.+ps: a small single-man speedster, without bunk or living quarters, simply a little power plant and weapon. Designed for speed and mobility, it would be very hard to hit, and because of its own offensive power would be dangerous to the enemy. They would need a fleet of mother s.h.i.+ps--s.h.i.+ps that would hold both the speedsters and their pilots--say thirty to a cruiser. There would also be some ten-man scouts, operating in the same manner as the larger cruisers, but with a smaller fleet of speedsters dependent on them.

"For defense," Arcot concluded, "we'll have to depend on armor as heavy as we can make and still remain within the bounds of practical construction. I don't believe we'll be able to build up enough ma.s.s to insulate against their negative catalysis ray. We'll have to depend on mobility and offense.

"But now let's get back to work. I think, Fuller, that you might call in the engineers of all the big aircraft and machine tool manufacturers and fabricators, and have them ready to start work at once when the plans are finally drawn up. You'd better get in touch with the Venerian producers, too. Those new works in Sorthol, Kaxor, will certainly be able to help a lot.

"I suppose the Interplanetary Patrol men will have something to say, so they better be called in. Likewise the Venerian Council. Morey, maybe your dad can handle some of this."

As one they arose and set to work on their respective tasks--the planning and building of the Earth-Venus war fleet.

V

Despite their utmost endeavor and the hard work of the industrial might of two worlds, it was nearly six weeks before the fleet had grown to a thing of importance. The tests to which they subjected the tiny speedsters had been more than satisfactory. They behaved wonderfully, shooting about at terrific speed, and with all the acceleration a pilot could stand. These speedsters were literally piloted projectiles, and their amazing mobility made them a powerful arm of offense.

There came into being a special corp dubbed, oddly enough, the "Rocket Squad", a group of men who could stand plenty of "G's". This "Rocket Squad" was composed solely of Terrestrians, for they were accustomed to the gravity of Earth and could stand greater acceleration strains than could the Venerians. The pick of the Air Patrol formed the nucleus of this new military organization; and in short order, so great is the appeal of the new and novel, the cream of the young men of the planet were competing for a place among the Rocketeers.

Each s.h.i.+p, both speedster and mother craft, was equipped with an invisibility locator, a sensitive short-wave directional receiver, that would permit the operator to direct his rays at invisible targets. The s.h.i.+ps themselves could not be made invisible, since they depended in their very principle on the absorption of light-energy. If the walls of every part of the s.h.i.+p were perfectly transparent, they could absorb no energy at all, and they would still be plainly visible--even more so than before! They must remain visible, but they could also force the enemy to remain visible.

Each ten-man s.h.i.+p carried an old-fas.h.i.+oned cannon that was equipped to hurl cannisters carrying the luminous paint. They decided that these would have advantages, even if the invaders did not use invisibility, for in s.p.a.ce a s.h.i.+p is visible only because it reflects or emits light.

For this reason the s.h.i.+ps were not equipped with any portholes except in the pilot room and at the observation posts. No light could escape. To reduce the reflection to the absolute minimum, the s.h.i.+ps had each been painted with a 99% absorptive black. In s.p.a.ce they would be exceedingly difficult targets.

The heating effect of the sun on the black pigment when near the great star was rather disagreeably intense, and to cool the speedsters they had installed molecular director power units, which absorbed the heat and used the energy to drive the s.h.i.+p. Heaters offset the radiation loss of the black surface when too far from the sun.

Each of the speedsters was equipped with a small machine-gun shooting luminous paint bullets. One of these, landing on another craft, made it visible for at least two hours, and since they could cover an area of about thirty feet, they were decidedly effective.

It was found that ray practice was rather complicated. The government had ranges set up in great mountain districts away from any valuable property, but they soon found that spatial warplay could not be carried on on Earth. The rays very quickly demolished the targets, and in a short time made good progress toward demolis.h.i.+ng the mountains as well.

The problem was solved by using the barren surface of the moon and the asteroid belt beyond Mars as a proving ground.

The s.h.i.+ps were sent out in squadrons as fast as they could be finished and the men could be brought together and trained. They were establis.h.i.+ng a great s.h.i.+eld of s.h.i.+ps across all that section of the system whence the Nigrans had appeared, and they hoped to intercept the next attack before it reached Earth, for they were certain the next attack would be in full force.

Arcot had gone to the conference held on Venus with the other men who had investigated the great wrecks, and each scientist had related his view of things and had offered suggestions. Arcot's idea of the black star was not very favorably received. As he later told Wade and Morey, who had not gone, there was good reason for their objection to his idea.

Though the scientists were willing to admit that the invaders must have come from a great distance, and they agreed that they lived in an atmosphere of hydrogen, and judging from their pale skins, that they were not used to the rays of a sun, they still insisted on the theory of an outer planet of Sol.

"You remember," explained Arcot, "several years ago there was considerable discussion about the existence of a planet still further out from the sun than Pluto. It is well known that there are a number of irregularities in the orbits of Neptune and Pluto that can't be caused by known planets, and an outer planet could have the necessary ma.s.s and orbit to account for them.

"This attack from outer s.p.a.ce was immediately taken as proof of that theory, and it was very easily supported, too. My one good point that stood for any length of time under their attacks was the fact that those s.h.i.+ps weren't developed in a year, nor a century, and that the chemical const.i.tution of the men was so different. There were no new elements discovered, except the light-matter, but they are rather wondering about the great difference of earthly chemical const.i.tution and the const.i.tution of these invaders.

"They had one argument that was just about enough to throw mine out, though they pointed to the odds against the thing happening. You know, of course, how planets are formed? They are the results of tidal action on two pa.s.sing suns.

"You can imagine two mighty stars careening through s.p.a.ce and then drawing slowly nearer, till at last they come within a few billion miles of each other, and their gigantic ma.s.ses reach out and bind them with a mighty chain of gravity. Their t.i.tanic ma.s.ses swing about each other, each trying to pull free, and continue its path about the center of the galactic system. But as their huge bulks come nearer, the chains that bind them become stronger and stronger, and the tremendous pull of the one gargantuan fire ball on the other raises t.i.tanic tides of flame.

Great streamers of gas shoot out, and all the s.p.a.ce about is lighted by the flaming suns. The pull of gravity becomes more and more intense, and as the one circles the other, the tide is pulled up, and the mighty ball of fire, which, for all its existence has been practically motionless as far as rotation goes, begins to acquire a greater and greater rotational speed as the tidal drag urges it on. The flames begin to reach higher and higher, and the tides, now urged from the sun by centrifugal force, rise into an ever greater crest, and as the swinging suns struggle to break loose, the flaming gas is pulled up and up, and becomes a mighty column of fire, a column that reaches out across three--four--a dozen millions of miles of s.p.a.ce and joins the two stars at last, as stalact.i.tes and stalagmites grow together. A flaming tie of matter joins them, two t.i.tanic suns, and a mighty rope of fire binds them, while far mightier chains of gravity hold them together.

"But now their original velocity rea.s.serts itself, and having spiraled about each other for who can say how long--a year--a million years seems more probable--but still only an instant in the life of a star--they begin to draw apart, and the flaming column is stretched out, and ever thinner it grows, and the two stars at last separate. But now the gas will never fall back into the sun. Like some giant flaming cigar it reaches out into s.p.a.ce and it will stay thus, for it has been set in rotation about the sun at such a speed as is needed to form an orbit.

The giant ma.s.s of gas is, however, too cool to continue to develop energy from matter, for it was only the surface of the sun, and cool. As it cools still further, there appear in it definite condensations, and the beginnings of the planets are there. The great filament that stretched from the sun to sun was cigar-shaped, and so the matter is more plentiful toward the center, and larger planets develop. Thus Jupiter and Saturn are far larger than any of the others. The two ends are tapering, thus Earth is larger than Venus, which is larger than Mercury, and Ura.n.u.s and Neptune are both smaller than Saturn, Pluto being smaller than either.