Battlefield Earth

But Soth simply took the screws out. He lifted the top of the console, which contained all the buttons, completely off and bunched the cables which led to it.

He then looked into the console itself. There were all kinds of components in there, but unlike a rig, it had no insulating board. Soth selected a wire with clips on both ends and fastened it on either side of three components to bypass them.

“Pressure fuses,” said Soth. “The whole inside of one of these consoles is carried at high pressure. If the pressure drops, any one of those three fuses expands and blows! If anyone monkeys with the cover, it lets the atmosphere out very silently. That blows these fuses.

“Except for the fuses and the erase-surge components, every thing else you're looking at there is garbage. Sensible seeming. But really just garbage. It has nothing to do with the console operation. I have jumped a wire across the fuses. They will blow and I’ll have to replace them. But the wipe mechanism won't work now. The real circuit is still intact.”

Jo

But Soth knew what he was doing. He kicked the pressure hose with a foot and the bag deflated. He withdrew his arms and pulled off the fasteners. The bag fell away.

Soth turned the console over. “These buttons would appear to go down, like ordinary keys, and hit the false circuit. But that isn't how it operates. The whole circuit is in the cover. When you push a button, it cuts off an internal light path and makes the circuit operate. Each button works like that.”

A totally hidden circuit, done with molecular alignment in the cover plate. And if you fooled with it, it wiped the circuit out. One cover screw loosened and you had no console anymore.

"Where's some paper?” said Soth. He found a big sheet of it, larger than the console plate. "Where's some powdered iron?” He found some, the dust-like brown-black powder, almost capable of floating in the air, so fine was it.

Soth dusted the powder on the white paper and spread a thin coat of it. Then, struggling to keep the bunched cables from tangling, he laid the console cover right-side up on the paper.

He took some jump wires, found a battery, and linked the battery to the console amid a flash of sparks. He was fixing it so that the cover and buttons would have juice ru

Soth exactly positioned the cover on the paper and then rapidly tapped each console button.

Jo

When Jo

There on the paper, drawn in magnetically grouped iron filings, was the whole circuit! Activated by pushing the buttons, each part of it had grouped the iron filings.

On the removal, a tiny part of it had gotten blurred. But Jo

They had that circuit!

Soth put it all back in the bag, inflated it to a hundred pounds, replaced the blown fuses, checked the plate gasket, and then screwed the console back together.

Two hours later, they had all three types of motor console circuits. They put everything away, called the mechanics, and had the consoles put back in the vehicles and co

Jo

Very different from a firing rig. Very different indeed.

Chapter 7

Back in his room, old Soth was tired and coughing a bit from having overexerted himself this day. Jo

Eventually Soth said, “I can't dismantle or put together a teleportation shipping rig; only Terl could do that. And I surely can't build one either. So maybe I shouldn't take this contract.” He held it up between a couple of claws, looked at it longingly, and then handed it to Jo

Jo

“No, no,” said Jo

“Really?” said Soth. He thought it over. “That's nice. Yes, that's very nice.” He was pondering something.

“You know,” Soth said after a while, “you have something of a security problem too. An awful lot of people of an awful lot of races would do anything to get their hands on Psychlo mathematics and some developments they stole. You know, don't you, that Professor En who developed teleportation was a Boxnard? No? Well he was. Yes, people will be trying to get this data. But I think I can help.”

He thought for quite a while. “Yes, I think I can do it.” He smiled. “Like any hobbyist, I like to fiddle around, and about fifty years ago– I was on a dreadful planet, not even a tree-l set myself the problem of putting Psychlo higher math into a computer. The company and the government would have had fits had it been reported. But I remember the circuits I devised. It would work all right but I’d need some facilities and components.”

A computer! Jo

"If you do that,” said Jo

“A million credits?” gawped Soth. “There isn't that much money!” He was fumbling around through his litter of paper. Jo

Soth chewed a small bit of it thankfully, remembered his ma

“You startled me,” said Soth. “But that wasn't all I was going to tell you.”

He chewed for a bit, got his heart beating again to his satisfaction. “I have been fooling about converting simpler Psychlo arithmetic to the decimal system.” He went into the litter of papers again, found what he wanted on the floor, and showed it to Jo

“They mixed me up,” said Jo

“Well, I should think they did, but that was all part of the security program. Anyway, all the basic arithmetic functions and the lesser formulas can be converted over to the decimal system. Then maybe they'll even put money into the decimal system– as I see the Galactic Bank's new issue remains in the eleven system. Now here is the good part:

“The decimal system will go into general use. Nobody will want anything to do with the clumsy eleven system and it will go into disuse!”

He sat back triumphantly. “You'll have your computer. The eleven system will phase out. People will consider it some old curiosity and forget it. And that in itself is a kind of security precaution.”

Jo

“A second contract!” said Soth, reading it upside-down.

"In addition to the first contract,” said Jo

“Oh, dear,” said Soth. “I could collect a warehouse full of mathematics texts with that! Ten warehouses. Fifty! Quick, don't change your mind. Let me sign it!”