“
You know what lasers are?” “No,” I said stuffily. “Not lasers, or masers, or atoms, or molecules, or flashlights—” He raised an eyebrow, then the other one. “You may think you know what a laser is, but you do not, you simply do not, my ignorant friend. You may know that laser is an acronym for light amplification by stimulated emission of radiation, which describes a concentrated source of coherent light all of the same wavelength, and you may realize that with lasers men can drill holes through little jewels and also bounce signals off the moon and make holograms, and you may be vaguely aware that men even now perform delicate retinoneural surgery—weld eyeballs, to you—and even more delicate microsurgery on single cells, and do other exciting things such as etching halftone plates and fixing decayed teeth. But you do not know what a laser is.” “I’ll bet I’m going to find out.” “It is your great good fortune. Soon lasers will be all over the place, coming out of your ears. They’ll be used for swift bloodless surgery, for invisible death rays that slice open the enemy, knock down satellites, carve legs of lamb. They’ll carry thousands of phone calls on one beam of light, zillions of television sets on one laser beam—” “Sets?” “—stations. Channels, signals. What do you care?” “I don’t.” “But I haven’t told you the greatest thing,” he said. “Can I stop you?” “During the demonstration earlier tonight, Dr. Fretsindler—that’s Fretsindler of M.I.T.—had a big hunk of granite on the stage. He banged it with a hammer, smacked it with a chisel, and naturally nothing happened.” “Then why are you telling me all this?” “Nothing was supposed to happen, Sheldon,” he said cheerfully. “That was the point. But then Fretsindler aimed some new kind of infrared laser—already had it on stage—at the damned boulder.
”
”
Richard S. Prather (Shell Scott PI Mystery Series, Volume Six)