Word: developed
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Dates: during 1990-1999
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Fleming serves well as a symbol of all the great medical researchers, such as Jonas Salk and David Ho, who fought disease. But he personally did little, after his initial eureka! moment, to develop penicillin. Nor has the fight against infectious diseases been so successful that it will stand as a defining achievement of the century...
Cavalier as he may have been about his wives, he had a deep moral sense. At the height of World War I, he risked the Kaiser's wrath by signing an antiwar petition, one of only four scientists in Germany to do so. Yet, paradoxically, he helped develop a gyrocompass for U-boats. During the troubled 1920s, when Jews were being singled out by Hitler's rising Nazi Party as the cause of Germany's defeat and economic woes, Einstein and his "Jewish physics" were a favorite target. Nazis, however, weren't his only foes. For Stalinists, relativity represented rampant...
Einstein was brilliant, of course, but he was also lucky. When he developed the general theory of relativity, he dealt with a world that had just three spatial dimensions plus time. As a result, he could use off-the-shelf mathematics to develop and solve his equations. M theorists can't: their science resides in an 11-dimensional world that is filled with weird objects called branes. Strings, in this nomenclature, are one-dimensional branes; membranes are two-dimensional branes. But there are also higher-dimensional branes that no one, including Witten, quite knows how to deal with. For these...
...world conjured into existence by M theory is so exotic that scientists are being forced to work not just at the frontier of physics but at the frontier of mathematics as well. Indeed, it may be that they lack some absolutely essential tool and will have to develop it, just as Isaac Newton was pushed by his investigations of the laws of motion to develop the calculus. As if that weren't hard enough, there is yet another major impediment to progress: unlike quantum mechanics, string theory and its offshoots have developed in the virtual absence of experimental evidence that...
...flee the country that so degraded people of color, but then his inner resilience overpowered him with a sense of mission, and he stayed to redeem the dignity of the racially exploited, to pave the way for the liberation of the colonized the world over and to develop a blueprint for a new social order...