Word: two
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Dates: during 1990-1999
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...doing, Einstein hoped also to resolve the conflict between two competing visions of the universe: the smooth continuum of space-time, where stars and planets reign, as described by his general theory of relativity, and the unseemly jitteriness of the submicroscopic quantum world, where particles hold sway...
...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 branes can fold and curl into any number of bewildering shapes...
...been President of the United States for 12 of the most tumultuous years in the life of the nation. For many, an America without Roosevelt seemed almost inconceivable. He had guided the nation through democracy's two monumental crises--the Great Depression and World War II. Those who watched the coffin pass were the beneficiaries of his nation's victory. Their children would live to see the causes for which he stood--prosperity and freedom, economic justice and political democracy--gather strength throughout the century, come to dominate life in America and in much of the world...
...Great Depression circled the globe, democracy and capitalism were everywhere in retreat. The propaganda of the day proclaimed that the choice was one of two extremes--fascism or communism. In Germany, economic collapse led to the triumph of the Nazi party and the installation of Adolf Hitler as Chancellor; in Italy, Benito Mussolini assumed dictatorial power with an ideology called Fascism; in the Soviet Union, Joseph Stalin and the communist ideology held sway...
...Communists." "The destruction of the Democratic Party," argued University of Chicago professor Paul Douglas (who would later become a pillar of the same party), "would be one of the best things that could happen in our political life." "The situation is critical," political analyst Walter Lippman warned Roosevelt two months before he took office. "You may have no alternative but to assume dictatorial power...