Popular Science PDF Download

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Publisher:
ISBN:
Category :
Languages : en
Pages : 308

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Book Description
Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.

Author: Dennis B. Malpass
Publisher: John Wiley & Sons
ISBN: 111846320X
Category : Technology & Engineering
Languages : en
Pages : 290

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Book Description
This introductory text is an important resource for new engineers, chemists, students, and chemical industry personnel to understand the technical aspects of polypropylene which is the 2nd largest synthetics polymer in manufactured output. The book considers the following topics: What are the principal types of polypropylene and how do they differ? What catalysts are used to produce polypropylene and how do they function? What is the role of cocatalysts and how have they evolved over the years? How are industrial polypropylene catalysts tested and the resultant polymer evaluated? What processes are used in the manufacture of polypropylene? What are the biopolymer alternatives to polypropylene? What companies are the major industrial manufacturers of polypropylene? What is the environmental fate of polypropylene?

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 234

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Author: Patricia Samford
Publisher: University of Alabama Press
ISBN: 0817354549
Category : History
Languages : en
Pages : 248

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This book discusses the daily life and culture of enslaved Africans and their descendants. Enslaved Africans and their descendants comprised a significant portion of colonial Virginia populations, with most living on rural slave quarters adjacent to the agricultural fields in which they labored. Archaeological excavations into these home sites have provided unique windows into the daily lifeways and culture of these early inhabitants. subfloor pits be-neath the houses. The most common explanations of the functions of these pits are as storage places for personal belongings or root vegetables, and some contextual and ethnohistoric data suggest they may have served as West African-style shrines. Through analysis of 103 subfloor pits dating from the 17th through mid-19th centuries, Samford reveals how data on shape, location, surface area, and depth, as well as contextual analysis of artifact assemblages, can show how subfloor pits functioned for the enslaved. Archaeology reveals the material circumstances of slaves' lives, which in turn opens the door to illuminating other aspects of life: spirituality, symbolic meanings assigned to material goods, social life, individual and group agency, and acts of resistance and accommodation. about how West African, possibly Igbo, cultural traditions were maintained and transformed in the Virginia Chesapeake.

Author: Charles Harrison
Publisher: MIT Press
ISBN: 9780262582414
Category : Art
Languages : en
Pages : 350

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Book Description
Critical and theoretical essays by a long-time participant in the Art & Language movement. These essays by art historian and critic Charles Harrison are based on the premise that making art and talking about art are related enterprises. They are written from the point of view of Art & Language, the artistic movement based in England—and briefly in the United States—with which Harrison has been associated for thirty years. Harrison uses the work of Art & Language as a central case study to discuss developments in art from the 1950s through the 1980s. According to Harrison, the strongest motivation for writing about art is that it brings us closer to that which is other than ourselves. In seeing how a work is done, we learn about its achieved identity: we see, for example, that a drip on a Pollock is integral to its technical character, whereas a drip on a Mondrian would not be. Throughout the book, Harrison uses specific examples to address a range of questions about the history, theory, and making of modern art—questions about the conditions of its making and the nature of its public, about the problems and priorities of criticism, and about the relations between interpretation and judgment.

Author: Philip Steadman
Publisher: UCL Press
ISBN: 1787359158
Category : Art
Languages : en
Pages : 418

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Book Description
Renaissance Fun is about the technology of Renaissance entertainments in stage machinery and theatrical special effects; in gardens and fountains; and in the automata and self-playing musical instruments that were installed in garden grottoes. How did the machines behind these shows work? How exactly were chariots filled with singers let down onto the stage? How were flaming dragons made to fly across the sky? How were seas created on stage? How did mechanical birds imitate real birdsong? What was ‘artificial music’, three centuries before Edison and the phonograph? How could pipe organs be driven and made to play themselves by waterpower alone? And who were the architects, engineers, and craftsmen who created these wonders? All these questions are answered. At the end of the book we visit the lost ‘garden of marvels’ at Pratolino with its many grottoes, automata and water jokes; and we attend the performance of Mercury and Mars in Parma in 1628, with its spectacular stage effects and its music by Claudio Monteverdi – one of the places where opera was born. Renaissance Fun is offered as an entertainment in itself. But behind the show is a more serious scholarly argument, centred on the enormous influence of two ancient writers on these subjects, Vitruvius and Hero. Vitruvius’s Ten Books on Architecture were widely studied by Renaissance theatre designers. Hero of Alexandria wrote the Pneumatics, a collection of designs for surprising and entertaining devices that were the models for sixteenth and seventeenth century automata. A second book by Hero On Automata-Making – much less well known, then and now – describes two miniature theatres that presented plays without human intervention. One of these, it is argued, provided the model for the type of proscenium theatre introduced from the mid-sixteenth century, the generic design which is still built today. As the influence of Vitruvius waned, the influence of Hero grew.

Author: Michael Myers Shoemaker
Publisher: Good Press
ISBN:
Category : Travel
Languages : en
Pages : 162

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Book Description
'Winged Wheels in France' is a travelog penned by Michael Myers Shoemaker. The book lays out his experience traveling throughout Europe, most notably, to the following countries: France, Switzerland, Spain, and Germany.

Author: Kevin Daum
Publisher: John Wiley & Sons
ISBN: 1118054067
Category : House & Home
Languages : en
Pages : 386

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Book Description
Keep construction on track with helpful checklists Turn your dream of a custom home into reality! Thinking about building your own home? This easy-to-follow guide shows you how to plan and build a beautiful home on any budget. From acquiring land to finding the best architect to overseeing the construction, you get lots of savvy tips on managing your new investment wisely -- and staying sane during the process! Discover how to: * Find the best homesite * Navigate the plan approval process * Obtain financing * Hire the right contractor * Cut design and construction costs * Avoid common mistakes

Author: R. Kent Smith
Publisher:
ISBN: 9780944210741
Category : Language Arts & Disciplines
Languages : en
Pages : 268

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Book Description
This instructor's edition of a vocabulary textbook for college students, who read at the fifth to eighth grade level, features 25 chapters and teaches 250 basic words. The first and third chapters in each unit contain word-part practices. The second and fourth chapters in each unit contain synonym-antonym practices. The book's last chapter in each unit contains an analogy practice, review, and test. Also included is an answer key, a section on dictionary use, and a word list. The student edition is identical to the instructor's edition except that answers are not provided. (CR)

Author: Jeremy Peter Varon
Publisher: Univ of California Press
ISBN: 0520930959
Category : History
Languages : en
Pages : 424

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Book Description
In this first comprehensive comparison of left-wing violence in the United States and West Germany, Jeremy Varon focuses on America's Weather Underground and Germany's Red Army Faction to consider how and why young, middle-class radicals in prosperous democratic societies turned to armed struggle in efforts to overthrow their states. Based on a wealth of primary material, ranging from interviews to FBI reports, this book reconstructs the motivation and ideology of violent organizations active during the 1960s and 1970s. Varon conveys the intense passions of the era--the heat of moral purpose, the depth of Utopian longing, the sense of danger and despair, and the exhilaration over temporary triumphs. Varon's compelling interpretation of the logic and limits of dissent in democratic societies provides striking insights into the role of militancy in contemporary protest movements and has wide implications for the United States' current "war on terrorism." Varon explores Weatherman and RAF's strong similarities and the reasons why radicals in different settings developed a shared set of values, languages, and strategies. Addressing the relationship of historical memory to political action, Varon demonstrates how Germany's fascist past influenced the brutal and escalating nature of the West German conflict in the 60s and 70s, as well as the reasons why left-wing violence dropped sharply in the United States during the 1970s. Bringing the War Home is a fascinating account of why violence develops within social movements, how states can respond to radical dissent and forms of terror, how the rational and irrational can combine in political movements, and finally how moral outrage and militancy can play both constructive and destructive roles in efforts at social change.