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That radiation is a tangible and measurable cause, sufficient to account for all losses heretofore ascribed to an intangible, immeasurable, and wholly imaginary cause, viz., "internal evaporation and re-evaporation." In other words, we must compound our engines. Thus for the first time is pointed out the true reason why compound engines are economical heat engines.
Scientists may continue to predict, as they have been predicting, the day when solar radiation will cease, but their predictions will prove as worthless as the sighing of the summer wind, so far as reality is concerned.
"But the redes say " "Oh, forget those redes. I know what I'm doing. Besides, I'm a Betan and can stand more radiation than most men. A brief exposure isn't going to hurt me." "You go and I go too," Copper said desperately. "You'll stay here where it's safe," Kennon said flatly. "I'm going with you," Copper repeated. "I don't want to live without you." "I tell you I won't be hurt.
I say phosphorescent light, for that is the nearest word I can find to describe it a curious radiation, quite different from the reflected light to which we are accustomed. "I said that the hollows inside of the cave were blackness. But not blackness the absence of light as we know it.
We got some prompt radiation. I don’t know how much." "When was that? The exact time?" Rip tried to remember. He felt horrible. "It was twenty-three-oh-five." "Bad," the voice said. "He must have taken enough roentgens of gamma and neutrons to reach or exceed the median-lethal dose." Rip found his voice again. "Santos," he said urgently. "On the asteroid. He got it, too. The rest were shielded.
"If Captain Strong is thinking about putting those passengers back aboard, I think you'd better tell him about the radiation. I haven't been able to flush it all out yet. And since we only have three lead-lined suits...." He left the statement unfinished. "I get you, Astro," replied Tom. He turned back to the teleceiver and faced Strong. "Astro says the ship is still hot from radiation, sir.
"Great jumping Jupiter," yelled Tom, "and we're still in one piece! We did it!" From the power deck, Astro's bull-like roar could be heard through the whole ship. "Gimme an open circuit, Tom," said Astro. "I want to operate the air blowers down here and try to get rid of some of that radiation. I have to get into the control chamber and see what's going on."
Croll has urged, the waters of the Gulf Stream do not warm the shores of Europe by direct contact, but by warming the anti-trade-winds, which subsequently blow across the continent. And everywhere the heat accumulated by water becomes effectual in modifying climate, not so much by direct radiation as by diffusion through the medium of the air.
Probably long before that time science will have perfectly mastered the problem of the sun's heat, and will be able to state precisely at what period the radiation will sink to a level which would normally be fatal to the living inhabitants of the planets.
As ages rolled on, the nebula gradually dispersed away by radiation its original stores of heat, and, in accordance with well-known physical principles, the materials of which it was formed would tend to coalesce. The greater part of those materials would become concentrated in a mighty mass surrounded by outlying uncondensed vapours.
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