Halfway around again, Sally opened a door, and Joe was almost surprised out of his lethargy. Here was a watching post on the outside of the monstrous half-globe. There were two guards here, with fifty-caliber machine guns under canvas hoods. Their duties were tedious but necessary. They watched the desert. From this height it stretched out for miles, and Bootstrap could be seen as a series of white specks far away with hills behind it.
Ultimately Sally and Joe came to the very top of the Shed into the open air. From here the steep plating curved down and away in every direction. The sunshine was savagely bright and shining, but there was a breeze. And here there was a considerable expanse fenced in—almost an acre, it seemed. There were metal-walled small buildings with innumerable antennae of every possible shape for the reception of every conceivable wave length. There were three radar bowl reflectors turning restlessly to scan the horizon, and a fourth which went back and forth, revolving, to scan the sky itself. Sally told Joe that in the very middle—where there was a shed with a domelike roof which wasn’t metal—there was a wave-guide radar that could spot a plane within three feet vertically, and horizontally at a distance of thirty miles, with greater distances in proportion.
There were guns down in pits so their muzzles wouldn’t interfere with the radar. There were enough non-recoil anti-aircraft guns to defend the Shed against anything one could imagine.
“And there are jet planes overhead too,” said Sally. “Dad asked to have them reinforced, and two new wings of jet fighters landed yesterday at a field somewhere over yonder. There are plenty of guards!”
The Platform was guarded as no object in all history had ever been guarded. It was ironic that it had to be protected so, because it was actually the only hope of escape from atomic war. But that was why some people hated the Platform, and their hatred had made it seem obviously an item of national defense. Ironically that was the reason the money had been provided for its construction. But the greatest irony of all was that its most probable immediate usefulness would be the help it would give in making nuclear experiments that weren’t safe enough to make on Earth.
That was pure irony. Because if those experiments were successful, they should mean that everybody in the world would in time become rich beyond envy.
But Joe couldn’t react to the fact. He was drained and empty of emotion because his job was done and he’d lost a very flimsy hope to be one of the Platform’s first crew.
He didn’t really feel better until late that night, when suddenly he realized that life was real and life was earnest, because a panting man was trying to strangle Joe with his bare hands. Joe was hampered in his self-defense because a large number of battling figures trampled over him and his antagonist together. They were underneath the Platform, and Joe expected to be blown to bits any second.