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Updated: May 28, 2025
But you might be surprised to learn that if this story was A Columbus of Space, the one I happen to have in mind, your grand-parents may well have read it before you were born for A Columbus of Space was published in All-Story magazine in 1909, thirty years before the potentialities of U235 were realized, and nearly forty before the atomic bomb became a problem for people to think about.
There wasn't anything left to do. They sat around on the hard surface of the planet, staring at the strange stars overhead. "You know," said Astro, "I might be able to set up something to convert some of the U235 in the reactors to fuel the jet boat." "Impossible, Astro," said Alfie. "You'd need a reduction gear. And not only that, but you haven't any tools to handle the mass.
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