Get Archimedes : What Did He Do Besides Cry Eureka? PDF

By Sherman Stein

ISBN-10: 0883857189

ISBN-13: 9780883857182

Many folks have heard issues approximately Archimedes: he used to be the best mathematician of antiquity, and he ran bare from his tub crying 'Eureka!'. despite the fact that, few everyone is accustomed to the particular accomplishments upon which his enduring acceptance rests, and it's the goal of this e-book to shed mild upon this topic. Archimedes' skill to accomplish loads with the few mathematical instruments at his disposal was once striking. He made primary advances within the fields of geometry, mechanics, and hydrostatics. No nice mathematical services is needed of the reader, and the publication is easily illustrated with over a hundred diagrams. it's going to turn out attention-grabbing to scholars mathematicians alike.

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Extra info for Archimedes : What Did He Do Besides Cry Eureka?

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Five years after the London exhibition, another international fair was held in Paris. By then, the dyes market had tripled in value, although French dye companies—like some of their colors—were fading. Their chemists were emigrating to Switzerland where future chemical giants, including Novartis’ forerunners, Ciba and Geigy, would flourish. Meanwhile, the fashion public’s craze for sheer brilliancy was passing, and fastness was becoming important again. Aldehyde green was the first green that did not look blue in gas lighting; when the beautiful Empress Eugenie wore an aldehyde green silk dress to the gaslit Paris Opera, the audience was amazed when her gown looked green the entire evening.

In turn, nitrobenzene contaminated nearby wells. The Wupper River became famous as one of the most ill-used rivers in the world. The adjacent Ruhr valley was treated as an industrial preserve that workers entered at their own risk. Scientists did not know how to investigate water quality. And until the cholera epidemics of the nineteenth century terrified the public (Chapter 4), air and water pollution seemed unimportant. ” For centuries, farmers in India had grown a native bush, Indigofera tinctoria, for its dye-rich branches.

Choosing a formidably stable relative of anthracene from among some chemicals left over from his student project, Perkin tried to break it apart into simpler compounds. Adapting Baeyer’s method, he heated his compound almost to the boiling point with acid. To manufacture it cheaply, however, Perkin would need ample supplies of anthracene. It was easy enough to make from tar but few tar distilleries even knew the compound existed. As a result, Perkin’s brother visited almost every coal tar factory in Britain to teach manufacturers how to separate the anthracene from tar.

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Archimedes : What Did He Do Besides Cry Eureka? by Sherman Stein

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