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The boat reaches the opposite banks. "Go to hell!" The Saivite hurled a last, liberal curse at Azhwarkkadiyaan's head and went his way.

— Fresh Floods by Kalki Krishnamurthy, Pavithra Srinivasan (Page 112)

"Manuel, you asked us to wait while Mike settled your questions. Let's get back to the basic problem: how we are to cope when we find ourselves facing Terra, David facing Goliath." "Oh. Been hoping that would go away. Mike? You really have ideas?" "I said I did, Man," he answered plaintively. "We can throw rocks." "Bog's sake! No time for jokes." "But, Man," he protested, "we can throw rocks at Terra. We will."

Took time to get through my skull that Mike was serious, and scheme might work. Then took longer to show Wyoh and Prof how second part was true. Yet both parts should have been obvious. Mike reasoned so: What is "war"? One book defined war as use of force to achieve political result. And "force" is action of one body on another applied by means of energy. In war this is done by "weapons"--Luna had none. But weapons, when Mike examined them as class, turned out to be engines for manipulating energy--and energy Luna has plenty. Solar flux alone is good for around one kilowatt per square meter of surface at Lunar noon; sunpower, though cyclic, is effectively unlimited. Hydrogen fusion power is almost as unlimited and cheaper, once ice is mined, magnetic pinchbottle set up. Luna has energy--how to use? But Luna also has energy of position; she sits at top of gravity well eleven kilometers per second deep and kept from falling in by curb only two and a half km/s high. Mike knew that curb; daily he tossed grain freighters over it, let them slide downhill to Terra. Mike had computed what would happen if a freighter grossing 100 tonnes (or same mass of rock) falls to Terra, unbraked. Kinetic energy as it hits is 6 .25 x 10^12 joules--over six trillion joules. This converts in split second to heat. Explosion, big one! Should have been obvious. Look at Luna: What you see? Thousands on thousands of craters--places where Somebody got playful throwing rocks. Wyoh said, "Joules don't mean much to me. How does that compare with H-bombs?" "Uh--" I started to round off in head. Mike's "head" works faster; he answered, "The concussion of a hundred-tonne mass on Terra approaches the yield of a two-kilotonne atomic bomb."

— The Moon Is a Harsh Mistress by Robert A. Heinlein, Lloyd James (Page 57 - 58)

"Correct, Manuel. A revolutionist must keep his mind free of worry or the pressure becomes intolerable." "I don't believe a word of it," Wyoh added. "We've got Mike and we're going to win! Mike dear, you say we're going to fight Terra--and Mannie says that's one battle we can't win. You have some idea of how we can win, or you wouldn't have given us even one chance in seven. So what is it?" "Throw rocks at them," Mike answered. "Not funny," I told him. "Wyoh, don't borrow trouble. Haven't even settled how we leave this pooka without being nabbed. Mike, Prof says nine guards were killed last night and Wyoh says twenty-seven is whole bodyguard. Leaving eighteen. Do you know if that's true, do you know where they are and what they are up to? Can't put on a revolution if we dasn't stir out."

— The Moon Is a Harsh Mistress by Robert A. Heinlein, Lloyd James (Page 53 - 54)