Chapter 7. _Dust from the Stars_

Ken felt he had grown 3 inches taller after his father's discussion. As

if he had passed some ancient ritual, he could be admitted to the

company of adults and his opinions would be heard.

This proved to be true. His father rapidly organized the facilities of

the college laboratories and recruited every possible science student in

the chemistry and physics departments, as well as many from the high

school. As these plans were outlined, Ken made a proposal of his own.

"I believe our first move," he said, "should be to set up a network of

amateur radio stations operating in cities where there are other

laboratories. If you could be in touch with them, ideas could be

exchanged and duplication of work avoided."

"An excellent idea," said Professor Maddox. "You can work it out as we

go along."

"No. It ought to be done immediately," Ken said. "If not, it may be

almost impossible to find anyone on the air later. There may not be many

amateurs who will bother to convert their rigs to battery operation.

There may not be many who can get the batteries together."

"Good enough!" his father said. "Let that have priority over everything

else until you get it organized. Probably you should find at least two

contacts in each of the university centers. Put at the top of your list

Berkeley, Pasadena, Chicago, New York, and Washington, D.C.

"See if you can get relay contacts that will put us in touch with

Stockholm, Paris, London, Berlin, and Tokyo. If so, we can have contact

with the majority of the workers capable of contributing most to this

problem."

"I'll do my best," Ken promised.

Someone would be needed to operate the station and spend a good many

hours a week listening and recording. He didn't want to spend the time

necessary doing that, and he knew none of the other club members would,

either. At once he thought of Maria Larsen. She would undoubtedly be

happy to take over the job and feel she was doing something useful. On

the way home he stopped at her house and told her what he had in mind.

She readily agreed.

"I don't know anything about radio," she said. "You'll have to show me

what to do."

"We won't expect you to learn code, of course," he said. "When we do

handle anything coming in by code one of us will have to take it. We'll

try to contact phone stations wherever possible for this program we have

in mind. Most of the stuff will be put on tape, and Dad will probably

want you to prepare typed copies, too. You can do enough to take a big

load off the rest of us."

"I'll be happy to try."

They spent the rest of the day in the radio room of the science shack.

Ken taught Maria the simple operations of turning on the transmitter and

receiver, of handling the tuning controls, and the proper procedure for

making and receiving calls. He supposed there would be some technical

objection to her operation of the station without an operator's license,

but he was quite sure that such things were not important right now.

It was a new kind of experience for Maria. Her face was alive with

excitement as Ken checked several bands to see where amateurs were still

operating. The babble of high-frequency code whistles alternated in the

room with faint, sometimes muffled voices on the phone band.

"There are more stations than I expected," Ken said. "With luck, we may

be able to establish a few of the contacts we need, tonight."

After many tries, he succeeded in raising an operator, W6YRE, in San

Francisco. They traded news, and it sounded as if the west coast city

was crumbling swiftly. Ken explained what he wanted. W6YRE promised to

try to raise someone with a high-powered phone rig in Berkeley, near the

university.

They listened to him calling, but could not hear the station he finally

raised.

"What good will that do?" Maria asked. "If we can't hear the station in

Berkeley...."

"He may be working on a relay deal through the small rig. It's better

than nothing, but I'd prefer a station we can contact directly."

In a few minutes, the San Francisco operator called them back. "W6WGU

knows a ham with a 1000-watt phone near the university," he said. "He

thinks he'll go for your deal, but he's not set up for battery. In fact,

he's about ready to evacuate. Maybe he can be persuaded to stay. I'm

told he's a guy who will do the noble thing if he sees a reason for it."

"There's plenty of reason for this," said Ken.

"Let's set a schedule for 9 p.m. I ought to have word on it by then."

They agreed and cut off. In another hour they had managed a contact with

a Chicago operator, and explained what they wanted.

"You're out of luck here," the ham replied. "This town is falling apart

at the seams right now. The whole Loop area has been burned out.

There's been rioting for 18 hours straight. The militia have been trying

to hold things together, but I don't think they even know whether

anybody is still on top giving the orders.

"I'll try to find out what the eggheads at the university are doing, but

if they've got any kind of research running in this mess, it'll surprise

me. If they are still there, I'll hang on and report to you. Otherwise,

I'm heading north. There's not much sense to it, but when something like

this happens a guy's got to run or have a good reason for staying put.

If he doesn't he'll go nuts."

The Chicago operator agreed to a schedule for the following morning.

Maria and Ken sat in silence, not looking at each other, after they cut

off.

"It will be that way in all the big cities, won't it?" Maria asked.

"I'm afraid so. We're luckier than they are," Ken said, "but I wonder

how long we'll stay lucky." He was thinking of Frank Meggs, and the

people who had swamped his store.

At 9 p.m., W6YRE came back on. The Berkeley 1000-watt phone was

enthusiastic about being a contact post with the university people. He

had promised to make arrangements with them and to round up enough

batteries to convert his transmitter and receiver.

They had no further success that night.

Ken's father shook his head sadly when told of the situation in Chicago.

"I had counted on them," he said. "Their people are among the best in

the world, and they have the finest equipment. I hope things are not

like that everywhere."

Members of the science club took turns at the transmitter the following

days for 20-hour stretches, until everything possible had been done to

establish the contacts requested by Professor Maddox.

In Chicago there appeared to have been a complete collapse. The operator

there reported he was unable to reach any of the scientific personnel at

the university. He promised a further contact, but when the time came he

could not be reached. There was no voice at all in the Chicago area. Ken

wondered what had become of the man whose voice they had heard briefly.

He was certain he would never know.

Although there was much disorder on the west coast, the situation was in

somewhat better control. The rioting had not yet threatened the

universities, and both Berkeley and Pasadena were working frantically on

the problem with round-the-clock shifts in their laboratories. They had

welcomed wholeheartedly the communication network initiated by the

Mayfield group.

In Washington, D.C. tight military control was keeping things somewhat

in order. In Stockholm, where contact had been established through a

Washington relay after 2 days of steady effort, there was no rioting

whatever. Paris and London had suffered, but their leading universities

were at work on the problem. Tokyo reported similar conditions.

Ken grinned at Maria as they received the Stockholm report. "Those

Swedes," he said. "They're pretty good at keeping their heads."

Maria answered with a faint smile of her own. "Everybody should be

Swedes. No?"

* * * * *

The fall winds and the black frost came early that year, as if in fair

warning that the winter intended a brutal assault upon the stricken

world. The pile of logs in the community woodlot grew steadily. A large

crew of men worked to reduce the logs to stove lengths.

They had made a crude attempt to set up a circular saw, using animal

power to drive it. The shaft was mounted in hardwood blocks, driven by a

complicated arrangement of wooden pulleys and leather belts. The horses

worked it through a treadmill.

The apparatus worked part of the time, but it scarcely paid for itself

when measured against the efforts of the men who had to keep it in

repair.

The food storage program was well underway. Two central warehouses had

been prepared from the converted Empire Movie Theater, and the Rainbow

Skating Rink.

Ken wished their efforts at the college laboratory were going half as

well. As the days passed, it seemed they were getting nowhere. The first

effort to identify any foreign substance in the atmospheric dust was a

failure. Calculations showed they had probably not allowed sufficient

time to sample a large enough volume of air.

It was getting increasingly difficult to keep the blower system going.

All of their original supply of small engines had broken down. The town

had been scoured for replacements. These, too, were failing.

In the metallurgical department hundreds of tests had been run on

samples taken from frozen engines. The photomicrographs all showed a

uniform peculiarity, which the scientists could not explain. Embedded in

the crystalline structure of the metal were what appeared to be some

kind of foreign, amorphous particles which were concentrated near the

line of union of the two parts.

Berkeley and Pasadena confirmed these results with their own tests.

There was almost unanimous belief that it was in no way connected with

the comet. Ken stood almost alone in his dogged conviction that the

Earth's presence in the tail of the comet could be responsible for the

catastrophe.

Another theory that was gaining increasing acceptance was that this

foreign substance was an unexpected by-product of the hydrogen and

atomic bomb testing that had been going on for so many years. Ken was

forced to admit the possibility of this, inasmuch as radiation products

were scattered heavily now throughout the Earth's atmosphere. Both

Russia and Britain had conducted extensive tests just before the

breakdowns began occurring.

The members of the science club had been allowed to retain complete

control of the air-sampling program. They washed the filters carefully

at intervals and distilled the solvent to recover the precious residue

of dust.

As the small quantity of this grew after another week of collecting, it

was treated to remove the ordinary carbon particles and accumulated

pollens. When this was done there was very little remaining, but that

little something might be ordinary dust carried into the atmosphere from

the surface of the Earth. Or it might be out of the tail of the comet.

Dust from the stars.

By now, Ken and his companions had learned the use of the electron

microscope and how to prepare specimens for it. When their samples of

dust had become sufficient they prepared a dozen slides for

photographing with the instrument.

As these were at last developed in the darkroom, Ken scanned them

eagerly. Actually, he did not know what he was looking for. None of them

did. The prints seemed to show little more than shapeless patches. In

the light of the laboratory he called Joe Walton's attention to one

picture. "Look," he said. "Ever see anything like that before?"

Joe started to shake his head. Then he gave an exclamation. "Hey, they

look like the same particles found in the metals, which nobody has been

able to identify yet!"

Ken nodded. "It could be. Maybe this will get us only a horselaugh for

our trouble, but let's see what they think."

They went into the next laboratory and laid the prints before Ken's

father and his associates. Ken knew at once, from the expressions on the

men's faces, that they were not going to be laughed at.

"I think there may be something here," said Professor Maddox, trying to

suppress his excitement. "It is very difficult to tell in a picture like

this whether one particle is similar to any other, but their size and

configuration are very much alike."

Professor Douglas grunted disdainfully. "Impossible!" With that

dismissal, he moved away.

Professor Larsen looked more carefully. "You could scrape dust from a

thousand different sources and get pictures like this from half of them

perhaps. Only the chemical tests will show us the nature of this

material. I am certain it is very worthwhile following up."

"I feel certain that whatever contaminating agent we are dealing with is

airborne," said Professor Maddox. "If this is the same substance it will

not tell us its origin, of course, nor will it even prove it is

responsible for these effects. However it is a step in the right

direction. We can certainly stand that!"

"Couldn't we tell by spectroscopic analysis?" said Ken.

"That would be difficult to say. The commonness of the elements involved

might mask what you are looking for. Get John Vickers to help you set up

equipment for making some comparisons."

Vickers was the teaching fellow in the chemistry department whom

Professor Maddox had planned to assign to help the boys when they first

suggested atmospheric analysis. He had become indispensable in the

research since then. But he liked helping the boys; it was not too long

since he had been at the same stage in his own career. He understood

their longing to do something worthwhile, and their embarrassment at

their ineptness.

"Sure, Guys," he said, when Professor Maddox called him in. "Let's see

if we can find out what this stuff is. Who knows? Maybe we've got a bear

by the tail."

It was delicate precision work, preparing specimens and obtaining

spectrographs of the lines that represented the elements contained in

them. Time after time, their efforts failed. Something went wrong either

with their sample preparation, or with their manipulation of the

instruments. Ken began to feel as if their hands possessed nothing but

thumbs.

"That's the way it goes," John Vickers consoled them. "Half of this

business of being a scientist is knowing how to screw a nut on a

left-handed bolt in the dark. Unless you're one of these guys who do it

all in their heads, like Einstein."

"We're wasting our samples," Ken said. "It's taken two weeks to collect

this much."

"Then this is the one that does it," said Vickers. "Try it now."

Ken turned the switch that illuminated the spectrum and exposed the

photographic plate. After a moment, he cut it off. "That had better do

it!" he said.

After the plates were developed, they had two successful spectrographs

for comparison. One was taken from the metal of a failed-engine part.

The other was from the atmospheric dust. In the comparator Vickers

brought the corresponding standard comparison lines together. For a long

time he peered through the eyepiece.

"A lot of lines match up," he said. "I can throw out most of them,

though--carbon, oxygen, a faint sodium."

"The stuff that's giving us trouble might be a compound of one of

these," said Ken.

"That's right. If so, we ought to find matching lines of other possible

elements in the compounds concerned. I don't see any reasonable

combination at all." He paused. "Hey, here's something I hadn't

noticed."

He shifted the picture to the heavy end of the spectrum. There, a very

sharp line matched on both pictures. The boys took a look at it through

the viewer. "What is that one?" Ken asked.

"I don't know. I used a carbon standard. I should have used one farther

toward the heavy end. This one looks like it would have to be a

transuranic element, something entirely new, like plutonium."

"Then it could be from the hydrogen bomb tests," said Joe.

"It could be," said Vickers, "but somehow I've got a feeling it isn't."

"Isn't there a quick way to find out?" said Ken.

"How?"

"If we took a spectrograph of the comet and found this same line

strongly present, we would have a good case for proving the comet was

the source of this substance."

"Let's have a try," said Vickers. "I don't know how successfully we can

get a spectrograph of the comet, but it's worth an attempt."

Their time was short, before the comet vanished below the horizon for

the night. They called for help from the other boys and moved the

equipment to the roof, using the small, portable 6-inch telescope

belonging to the physics department.

There was time for only one exposure. After the sun had set, and the

comet had dropped below the horizon, they came out of the darkroom and

placed the prints in the viewing instrument.

Vickers moved the adjustments gently. After a time he looked up at the

circle of boys. "You were right, Ken," he said. "Your hunch was right.

The comet is responsible. Our engines have been stopped by dust from the

stars."

The Year When Stardust Fell · 第 7 / 20 章