منابع مشابه
Historical roots of gauge invariance
Gauge invariance is the basis of the modern theory of electroweak and strong interactions (the so-called standard model). A number of authors have discussed the ideas and history of quantum guage theories, beginning with the 1920s, but the roots of gauge invariance go back to the year 1820 when electromagnetism was discovered and the first electrodynamic theory was proposed. We describe the 19t...
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With the advent and spread of Islam, in addition to Arabs, people from other races and nations turned to Islam. Prejudices, ethnic and tribal affiliations, and blood ties among the pre-Islamic Arabs, on the one hand and on the other hand, the advent of Islam among Arabs brought about this idea among the Arabs after Islam that it appears that Arab Muslims were superior and first-class citizens w...
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Introduction Post World War II Germany was facing enormous problems caused by its immediate past: psychological, economical, social, political, moral. In addition it had to deal with an awkward situation of the country being split artificially into two diametrically different republics. It had to cope with its heritage and recent past and find a way out of the impasse to be able to function in ...
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A conversation with Aldous Huxley not infrequently put one at the receiving end of an unforgettable monologue. About a year before his lamented death he was discoursing on a favorite topic: Man's unnatural treatment of nature and its sad results. To illustrate his point he told how, during the previous summer, he had returned to a little valley in England where he had spent many happy months as...
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ژورنال
عنوان ژورنال: Impact Assessment
سال: 1993
ISSN: 0734-9165
DOI: 10.1080/07349165.1993.9725841