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Updated: September 19, 2025
Louis and its lifeless ruins ... then to Chicago and Gary, where little bands of Stone Age reversions stalked and fought and ate each other ... Detroit, where things that had completely forgotten they were human emerged from their burrows only at night ... Cleveland, where a couple of cobalt bombs must have landed in the lake and drenched everything with radioactivity that still lingered after two centuries ... Akron, where vegetation was only beginning to break through the glassy slag ... Cincinnati, where they had last stopped....
I think it at the very best a waste of time; at the worst, extremely dangerous. In what way, Miss Francis? In every way. Did you ever hear of a chain-reaction, young man? Or radioactivity?
Beats the thermos bottle, and requires no vacuum. It isn't quite what I want though, because the disintegrating rays which the ring discharge gives out break down the zirconium, which isn't an end-product of radioactivity. The pressure in the capsule rises, due to the liberation of helium, and it blows up, and the landlady or the police come up and bother me."
So he took his disappointment out on the nearest Planeteer, who happened to be Rip. "The gases go through tubes," O'Brine went on. "A little nuclear material also leaks into the tubes. The tubes get coated with carbon, Foster. They also get coated with nuclear fuel. We use thorium. Thorium is radioactive. I won't give you a lecture on radioactivity, Foster.
"Radioactivity's still almost active-normal about eight hundred REM's and the temperature's away up, too. That isn't lingering radiation; that's prompt radiation." "Radioactivity hasn't dropped since morning; I'd think so, too," Melroy said. "What are they getting on the breakdown counter?" "Mostly neutrons and alpha-particles.
Vidac had tried to salvage some of the more basic tools needed in farming the dusty satellite soil, but nothing had come of it. Three to five years had to pass before the radioactivity would be harmless. "We'll have to farm with chemicals," announced Vidac finally to a meeting of the farmers.
The same is true of the phenomena bound up with radioactivity, which were discovered in direct consequence of Crookes's work. We know that the naturally radioactive elements are all in the group of those with the highest atomic weight.
Rick explained to Bennett about the ghosts and the cart, and then added Belsely's reports on the times when two or three ghosts had walked the fields without a cart. "Scotty and I saw three of them once, and it's a cinch they were using a survey meter to check the ground for radioactivity. But why? That's what has us going around in ghastly, ghostly circles.
Soon nearly half of the cadet candidates were standing in silent awe in front of the battered hull of the Space Queen, the first atomic-powered rocket ship allowed on exhibition only fifty years before because of the deadly radioactivity in her hull, created when a lead baffle melted in midspace and flooded the ship with murderous gamma rays.
"Somebody else may have been burned in any case," said the Major detachedly. "I am going to issue a radioactivity alarm and check every man in Bootstrap for burns. It is ah very likely that the man who delivered it to this man is burned, too. But you will not mention this, of course." He waved his hand in dismissal. Joe turned to go.
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