measure accurately and easily by simple voltmeters and ammeters. But radiant energy was another thing. When it passed all hitherto known bonds, it would simply fuse any instrument they might use to measure it.
But they knew the power they generated. In one split second they had burst the energy bonds of a tiny bit of steel and that energy had glared briefly more hotly than the Sun.
"Greg," he said, "it isn't often you can say that any event was the beginning of a new era. You can with this—the era of unlimited power. It kind of scares me."
Up until a hundred years ago coal and oil and oxygen had been the main power sources, but with the dwindling of the supply of coal and oil, man had sought another way. He had turned back to the old dream of snatching power direct from the Sun. In the year 2048 Patterson had perfected the photo-cell. Then the Alexanderson accumulators made it possible to pump the life-blood of power to the far reaches of the System, and on Mercury and Venus, and to a lesser extent on Earth, great accumulator power plants had sprung up, with Interplanetary, under the driving genius of Spencer Chambers, gaining control of the market.
The photo-cell and the accumulator had spurred interplanetary trade and settlement. Until it had been possible to store Sun-power for the driving of spaceships and for shipment to the outer planets, ships had been driven by rocket fuel, and the struggling colonies on the outer worlds had fought a bitter battle without the aid of ready power.
Coal and oil there were in plenty on the outer worlds, but one other essential was lacking ... oxygen. Coal on Mars, for instance, had to burned under synthetic air pressures, like the old carburetor. The result was inefficiency. A lot of coal burned, not enough power delivered.
Even the photo-cells were inefficient when attempts were made to operate them beyond the Earth; that was the maximum distance for maximum Solar efficiency.
Russ dug into the pocket of his faded, scuffed leather jacket and hauled forth pipe and pouch. Thoughtfully he tamped the tobacco into the bowl.
"Three months," he said. "Three months of damn hard work."
"Yeah," agreed Wilson, "we sure have worked."
Wilson's face was haggard, his eyes red. He blew smoke through his nostrils.
"When we get back, how about us taking a little vacation?" he asked.
Russ laughed. "You can if you want to. Greg and I are keeping on."
"We can't waste time," Manning said. "Spencer Chambers may get wind of this. He'd move all hell to stop us."
Wilson spat out his cigarette. "Why don't you patent what you have? That would protect you."
Russ grinned, but it was a sour one.
"No use," said Greg. "Chambers would tie us up in a mile of legal red tape. It would be just like walking up and handing it to him."
"You guys go ahead and work," Wilson stated. "I'm taking a vacation. Three months is too damn long to stay out in a spaceship."
"It doesn't seem long to me," said Greg, his tone cold and sharp.
No, thought Russ, it hadn't seemed long. Perhaps the hours had been rough, the work hard, but he hadn't noticed. Sleep and food had come in snatches. For three months they had worked in space, not daring to carry out their experiments on Earth ... frankly afraid of the thing they had.
He glanced at Manning.
The three months had left no mark upon him, no hint of fatigue or strain. Russ understood now how Manning had done the things he did. The man was all steel and flame. Nothing could touch him.
"We still have a lot to do," said Manning.
Russ leaned back and puffed at his pipe.
Yes, there was a lot to do. Transmission problems, for instance. To conduct away such terrific power as they knew they were capable of developing would require copper or silver bars as thick as a man's thigh, and even so at voltages capable of jumping a two-foot spark gap.
Obviously, a small machine such as they now had would be impractical. No matter how perfectly it might be insulated, the atmosphere itself would not be an insulator, with power such as this. And if one tried to deliver the energy as a mechanical rotation of a shaft, what shaft could transmit it safely and under control?
"Oh, hell," Russ burst out, "let's get back to Earth."
Harry Wilson watched the couple alight from the aero-taxi, walk up the broad steps and pass through the magic portals of the Martian Club. He could imagine what the club was like, the deference of the management, the exotic atmosphere of the dining room, the excellence of the long, cold drinks served at the bar. Mysterious drinks concocted of ingredients harvested in the jungles of Venus, spiced with produce from the irrigated gardens of Mars.
He puffed on the dangling cigarette and shuffled on along the airy highwalk. Below and above him, all around him flowed the beauty and the glamor, the bravery and the splendor of New York. The city's song was in his ears, the surging noises that were its voice.
Two thousand feet above his head reared giant pinnacles of shining metal, glinting in the noonday sun, architecture that bore the alien stamp of other worlds.
Wilson turned around, stared at the Martian Club. A man needed money to pass through those doors, to taste the drinks that slid across its bar, to sit and watch its floor shows, to hear the music of its orchestras.
For a moment he stood, hesitating, as if he were trying to make up his mind. He flipped away the cigarette, turned on his heel, walked briskly to the automatic elevator which would take him to the lower levels.
There, on the third level, he entered a Mecho restaurant, sat down at a table and ordered from the robot waiter, pushing ivory-tipped buttons on the menu before him.
He ate leisurely, smoked ferociously, thinking. Looking at his watch, he saw that it was nearly two o'clock. He walked to the cashier machine, inserted the metallic check with the correct change and received from the clicking, chuckling register the disk that would let him out the door.
"Thank you, come again," the cashier-robot fluted.
"Don't mention it," growled Wilson.
Outside the restaurant he walked briskly. Ten blocks away he came to a building roofing four square blocks. Over the massive doorway, set into the beryllium steel, was a map of the Solar System, a map that served as a cosmic clock, tracing the movement of the planets as they swung in their long arcs around the Sun. The Solar System was straddled by glowing, golden letters. They read: Interplanetary Building.
It was from here that Spencer Chambers ruled his empire built on power.
Wilson went inside.
CHAPTER IV
The new apparatus was set up, a machine that almost filled the laboratory ... a giant, compact mass of heavy, solidly built metal work, tied together by beams of girderlike construction. It was meant to stand up under the hammering of unimaginable power, the stress of unknown spatial factors.
