Word: ared
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Dates: during 1990-1999
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General relativity also predicts that time comes to a stop inside black holes, regions of space-time that are so warped that light cannot escape them. But both the beginning and the end of time are places where the equations of general relativity fall apart. Thus the theory cannot predict...
Einstein was horrified by this random, unpredictable element in the basic laws and never fully accepted quantum mechanics. His feelings were expressed in his famous God-does-not-play-dice dictum. Most other scientists, however, accepted the validity of the new quantum laws because they showed excellent agreement with observations...
After World War II, he urged the Allies to set up a world government to control the atom bomb. He was offered the presidency of the new state of Israel in 1952 but turned it down. "Politics is for the moment," he once wrote, "while...an equation is for eternity...
Already, in fact, theoretical physicists have succeeded in constructing a framework that offers the best hope yet of integrating gravity with nature's other fundamental forces. This framework is popularly known as string theory because it postulates that the smallest, indivisible components of the universe are not point-like particles...
Over the years, enthusiasm for string theory has waxed and waned. It enjoyed a brief vogue in the early 1970s, but then most physicists stopped working on it. Theorist John Schwarz of Caltech and his colleague Joel Scherk of the Ecole Normale Superieure, however, persevered, and in 1974 their patience...