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Books > Science & Mathematics > Science: general issues > General

Challenges and Opportunities in Exponential Times (Hardcover): Z. S. Andrew Demirdjian Challenges and Opportunities in Exponential Times (Hardcover)
Z. S. Andrew Demirdjian
R820 Discovery Miles 8 200 Ships in 10 - 15 working days
The Second Coming - The Mighty Ones of Eternity (Hardcover): Roue Hupsel The Second Coming - The Mighty Ones of Eternity (Hardcover)
Roue Hupsel
R653 Discovery Miles 6 530 Ships in 10 - 15 working days

From the dark shadows of Neptune and Pluto, suddenly an unknown planet emerges, which after a cycle lasting thousands of years, has returned to our solar system, visible from Earth at night as a small star. With her arrival, Nibiru, as the ancients in pre-historic times called her, brings a horror that will afflict the earthlings as never before. They, who our ancestors considered gods, have returned to claim their inheritance. No weapon can withstand this invasion, which is not of material nature and will mercilessly strike the non-physical part of man - his soul An American scholar specialized in ancient languages, discovers an obscure inscription and image on a clay tablet from ancient Sumer, where mention is made of the return of the gods, who stood at the beginning of the birth of humanity. This discovery opens his eyes to the indescribable terrifying truths, leading to an on madness bordering cognizance, that takes its toll and leads to his death. His son, assisted by a wise Indian shaman, begins an almost impossible battle against unknown, sinister threatening powers that attack humanity in the core. Thousands of humans are being evicted from their corporeal body. When these completely unknown entities approach the inhabitants of the White House and attack the president, one fears the worst. A possible salvation of mankind is hidden in mysterious images and petroglyphs on the Gateway of the Sun in Tiahuanaco, Bolivia. A journey full of strange and terrifying events leads the two men to bewildering, unfathomable answers to questions far beyond their intellect. In Siloam Springs, a little town in the United States, a fierce battle takes place, in which a small boy with incredible psychic powers, hopefully, can turn the tide, provided that both men could wrest the truth from the darkness of oblivion: the unknown past of mankind....

Contemporary Art Impacts on Scientific, Social, and Cultural Paradigms - Emerging Research and Opportunities (Hardcover): Janez... Contemporary Art Impacts on Scientific, Social, and Cultural Paradigms - Emerging Research and Opportunities (Hardcover)
Janez Strehovec
R3,981 Discovery Miles 39 810 Ships in 18 - 22 working days

Art is a concept that has been used by researchers for centuries to explain and realize numerous theories. The legendary artist Leonardo da Vinci, for example, was a profound artist and a genius inventor and researcher. The co-existence of science and art, therefore, is necessary for global appeal and society's paradigms, literacy, and scientific movements. Contemporary Art Impacts on Scientific, Social, and Cultural Paradigms: Emerging Research and Opportunities provides emerging research exploring the theoretical and practical aspects of present post-aesthetic art and its applications within economics, politics, social media, and everyday life. Featuring coverage on a broad range of topics such as media studies, contemporary storytelling, and literacy nationalism, this book is ideally designed for researchers, media studies experts, media professionals, academicians, and students.

Zoology of Egypt - Volume 1 (Paperback): John Anderson, George A. Boulenger, William E de Winton Zoology of Egypt - Volume 1 (Paperback)
John Anderson, George A. Boulenger, William E de Winton
R1,251 Discovery Miles 12 510 Ships in 18 - 22 working days
A Treatise on the Diatomaceae - Containing Introductory Remarks on the Structure, Life History.... (Paperback): Henri Ferdinand... A Treatise on the Diatomaceae - Containing Introductory Remarks on the Structure, Life History.... (Paperback)
Henri Ferdinand van Heurck
R1,555 Discovery Miles 15 550 Ships in 18 - 22 working days
Drug-Drug Interactions (Hardcover): Dong Hyun Kim, Sang-kyu Lee Drug-Drug Interactions (Hardcover)
Dong Hyun Kim, Sang-kyu Lee
R1,417 R1,240 Discovery Miles 12 400 Save R177 (12%) Ships in 18 - 22 working days
Every Third Woman in America - How Legal Abortion Transformed Our Nation (Hardcover): David A. Grimes, Linda G Brandon Every Third Woman in America - How Legal Abortion Transformed Our Nation (Hardcover)
David A. Grimes, Linda G Brandon
R838 Discovery Miles 8 380 Ships in 10 - 15 working days
A Simple Story of a Not-So-Simple Universe - It's not the only story. It's just my story! (Hardcover): Jerry Miller A Simple Story of a Not-So-Simple Universe - It's not the only story. It's just my story! (Hardcover)
Jerry Miller
R711 Discovery Miles 7 110 Ships in 10 - 15 working days

At the time of my retirement on March 31, 2006, I challenged myself with a handful of goals. With this publication, all have now been accomplished. Initially, I did not plan to publish. I did plan to write a manuscript or a story . . . or just write something about the universe. I felt compelled to give my fascination with the universe some sort of order, something that would punctuate my life. Upon completion, I wondered if it might have some merit to others and scoped out the thought of publication. I found the manuscript very readable and relatively elementary. It should prove interesting to science students of all levels as well as all people interested in the universe.

Principles of geology - The modern changes of the earth and its inhabitants. Edition 12, Vol. 2 (Paperback): Charles Lyell Principles of geology - The modern changes of the earth and its inhabitants. Edition 12, Vol. 2 (Paperback)
Charles Lyell
R1,445 Discovery Miles 14 450 Ships in 18 - 22 working days
Hate Speech - Linguistic Perspectives (Hardcover): Victoria Guillen-Nieto Hate Speech - Linguistic Perspectives (Hardcover)
Victoria Guillen-Nieto
R3,442 Discovery Miles 34 420 Ships in 18 - 22 working days

Hate speech has been extensively studied by disciplines such as social psychology, sociology, history, politics and law. Some significant areas of study have been the origins of hate speech in past and modern societies around the world; the way hate speech paves the way for harmful social movements; the socially destructive force of propaganda; and the legal responses to hate speech. On reviewing the literature, one major weakness stands out: hate speech, a crime perpetrated primarily by malicious and damaging language use, has no significant study in the field of linguistics. Historically, pragmatic theories have tended to address language as cooperative action, geared to reciprocally informative polite understanding. As a result of this idealized view of language, negative types of discourse such as harassment, defamation, hate speech, etc. have been neglected as objects of linguistic study. Since they go against social, moral and legal norms, many linguists have wrongly depicted those acts of wrong communication as unusual, anomalous or deviant when they are, in fact, usual and common in modern societies all over the world. The book analyses the challenges legal practitioners and linguists must meet when dealing with hate speech, especially with the advent of new technologies and social networks, and takes a linguistic perspective by targeting the knowledge the linguist can provide that makes harassment actionable.

Comets in the 21st Century - A personal guide to experiencing the next great comet! (Paperback): Daniel C Boice, Thomas Hockey Comets in the 21st Century - A personal guide to experiencing the next great comet! (Paperback)
Daniel C Boice, Thomas Hockey
R753 Discovery Miles 7 530 Ships in 10 - 15 working days

Have you ever wondered what comets are and why astronomers spend so much time studying them? Now, a comet expert and an astronomical historian have come together to produce this unique book. Using their several decades of teaching experience, the authors have concisely presented the information you need to comprehend these majestic apparitions that grace our night skies. No mathematical proficiency is needed. In fact, this book doesn't contain a single equation. Comets are cosmic Rosetta stones, bridging our current knowledge by digging back to the earliest days of our solar systems. How did life arise on Earth? Did comets play a significant role in bringing water and the necessary organic matter to our early Earth? How about the dinosaurs? Were they driven to extinction by a cometary impact 66 million years ago? Comets may be both the enablers and destroyers of life on Earth as we know it. These are some of the tantalizing questions discussed here. If you so desire, steps are given to join the ranks of amateur comet hunters. Astronomy is one of the last sciences where amateurs play a significant role. Your reward for discovery? A comet officially bearing your name in the history books. The next great comet is on its way, we just do not know when it will arrive. Armed with this book, you will be ready to enjoy this unforgettable event.

Multifunctional Hybrid Materials Based on Polymers - Design and Performance (Hardcover): Multifunctional Hybrid Materials Based on Polymers - Design and Performance (Hardcover)
R1,406 R1,229 Discovery Miles 12 290 Save R177 (13%) Ships in 18 - 22 working days
Growing with America-Colonial Roots (Hardcover): Joseph Fox Growing with America-Colonial Roots (Hardcover)
Joseph Fox
R971 Discovery Miles 9 710 Ships in 10 - 15 working days
Secrets of UFO Technology (Hardcover): Kenneth W. Behrendt Secrets of UFO Technology (Hardcover)
Kenneth W. Behrendt
R937 Discovery Miles 9 370 Ships in 18 - 22 working days

In Secrets of UFO Technology, Kenneth W. Behrendt (author of The Physics of the Paranormal) reveals some of the conclusions he reached concerning the UFO phenomenon after decades of intensive research. The result is a unique treatment of the subject that is far in advance of what has been generally available to date. After learning how an extraterrestrial craft negates its normal mass and weight to achieve gravity free, inertialess flight, you'll be ready to take inspection tours of a typical flying saucer and mother ship. During your journey of discovery, you'll also learn how UFOs stall automobiles, how alien craft and their crews can become invisible, how ufonauts levitate themselves for independent flight outside of their craft, and all about the shocking details behind the cattle mutilation cases. Secrets of UFO Technology is a profusely illustrated work that truly has the potential to revolutionize the science of ufology!

Aus Natur Und Wissenschaft - Studien, Kritiken, Abhandlungen Und Entgegnungen (Paperback): Buchner Ludwig Buchner Aus Natur Und Wissenschaft - Studien, Kritiken, Abhandlungen Und Entgegnungen (Paperback)
Buchner Ludwig Buchner
R1,184 Discovery Miles 11 840 Ships in 18 - 22 working days
Metallurgy Of Copper (Hardcover): Joseph Newton Metallurgy Of Copper (Hardcover)
Joseph Newton
R1,156 Discovery Miles 11 560 Ships in 10 - 15 working days

METALLURGY of COPPER RY JOSEPH NEWTON Assistant Professor of Mctsillurgy I ninrsit of Idaho Mos m, I I i ho CURTIS L. WILSON Von, Missouri hoot of Mines and Metallurgy I Orrncr Vo rssor tf lctallnrgy Montana hool of 1ines NK V YORK ILKY Jv SOi T S, 4NC. LOM ON Cll PM N vK II VLL. LIMITED COPTHIOHT, 1942 BT JOSEPH NEWTON AND CURTIS L WILSON All Rights Resented Th 9 book or any part thereof must not be reproduced in any form without the written permission of the publisher. PREFACE The aim of this book is to present a discussion of the various methods employed in winning copper from its ores and in refining the metal to commercial grade. Examples of modern practice are included to illustrate the application of these methods, but no attempt has been ma-le to compile a complete and exhaustive treatise on the practice all over the world. Such a treatise might well require several volumes. onfining the discussion largely to the extraction and refining of r, it has been possible to touch only lightly on several related cts because of space limitation. The chapter on ore dressing is m. ly a summary to indicate the methods used in dressing copper ores and the nature of the resulting concentrates. It was not possible to consider the subject of copper alloys in any great detail. An attempt has been made to give credit at the proper place for all material used in the book. The authors extend their thanks to the various mining, smelting, refining, and manufacturing companies, and to the publishing companies for their kind and willing cooperation. JOSEPH NEWTON CURTIS L. WILSON June, 1942 CONTENTS CHAPTER PAGE I. FROM ORE TO CONCENTRATE 1 II. THE EXTRACTION OF COPPER FROM ITS ORES .... 32 III.ROASTING 50 IV. SMELTING 76 V. CONVERTING 162 VI. FIRE REFINING 188 VII. SMOKE AND OASES 226 VIII. ELECTROLYTIC REFINING 250 IX. HVDROMEI U. LVRGY . 303 X. PROPERTIED OF COPPER 379 XI. THE USES OF COPPER 396 XII. PRODUCTION OF COPPER 430 BIBLIOGR PIIY . . 499 NAME INDEX 501 SUBJECT INDEX 503 CHAPTER I FROM ORE TO CONCENTRATE THE IMPORTANCE OF COPPER From the beginning of recorded history until the end of the medieval period, copper was the worlds most useful metal. Its use marked the transitory step in the progress of civilization from the Stone Age to the Metal Age. Although gold, owing to its sparkling yellow color, its high luster, its resistance to corrosion and tarnish, and its occurrence in the free or elemental state in nature, was unquestionably the first metal to attract the attention of man, and although in certain localities iron, 1 in the form of meteorites or even obtained by the reduction of the oxide with charcoal, may have been used before copper, nevertheless every ancient metal culture was actually introduced by the use of copper. 2 In the form of pure metal, fashioned first by the crude hammering of masses of native copper and later by melting, and in the form of bronze, obtained by smelting mixed tin and copper ores, it was employed originally for ornaments and statues and then as tools, domestic utensils, implements of war, and for every purpose in which its strength, hardness, and toughness proved its superiority to stone, wood, and other materials. When the methods of producing iron evolved from the direct processes through the cast iron period to puddling, cementation, and the crucible process, iron and steel usurped coppers position of first importance and withthe advent of the Bessemer and open-hearth processes, ferrous materials attained such ease of large-scale production and such widespread use that they almost eclipsed copper The age of electricity, however, introduced new requirements for materials to be used in the generation and transmission of electrical energy copper immediately entered its rejuvenation 3 and assumed firs place in importance in the electrical field and second in general utility in our present-day civilization. 1 Howe, H M, The Metallography of Steel and Cast Iron, p...

The Locomotive - Vol. 42 (Paperback): Anonymous The Locomotive - Vol. 42 (Paperback)
Anonymous
R1,223 Discovery Miles 12 230 Ships in 18 - 22 working days
Anatomical Variation and Clinical Diagnosis (Hardcover): Heather F Smith Anatomical Variation and Clinical Diagnosis (Hardcover)
Heather F Smith
R1,226 R1,083 Discovery Miles 10 830 Save R143 (12%) Ships in 18 - 22 working days
Colours in Culture and Science. (Hardcover): Gudrun Wolfschmidt Colours in Culture and Science. (Hardcover)
Gudrun Wolfschmidt
R2,182 Discovery Miles 21 820 Ships in 10 - 15 working days

Colours play is an important role in our daily life. Colour theory is a complex field of knowledge. On the occasion of 200 years Goethe's colour theory (2010) an interdisciplinary symposium "Colours in culture and science" was organized. The different topics are now discussed and presented in this book: 1. Colours in Philosophy and Epistemology, 2. Colours in Cultural History - Pigments and Dyes, 3. Colours in Art and Cultural History, 4. Light and Colour - Colour Theory: Newton's Physics versus Goethe, 4. Colour Theories, Colour Systems and Colour Chemistry, 5. Colour Perception and Colour Vision and 6. Cultural Meaning of Colours. Charakteristisch fur die unterschiedlichen Auffassungen der Natur- und Geisteswissenschaftler ist der Streit uber die Farbentheorien von Newton und Goethe; sind das zwei unvereinbare Weltanschauungen? So sind im Symposium Colours in culture and science - Farben in Kulturgeschichte und Naturwissenschaft - anlasslich von 200 Jahre Goethes Farbenlehre - die verschiedenartigsten Aspekte zum Thema Farben" zur Sprache gekommen, unter Einbeziehung der Farbenforschung in den Kulturwissenschaften, u. a. der Archaologie und der Kunst- und Kulturgeschichte. Auch die Bedeutungen der Farben in der Zeichentheorie (Semiotik) sowie in den verschiedenen Bereichen der Naturwissenschaften (Astronomie, Physik, Chemie und Biologie) und der Technik wurden behandelt, um dem Phanomen Farbe sowohl unter geistes- als auch unter naturwissenschaftlichem Aspekt gerecht zu werden. Interessanterweise hatte die Goethesche Farbentheorie (mit dem Farbkreis und der Idee der Polaritat, Gegenfarbentheorie) sogar eine grosse Wirkung insbesondere auf die Kunst (z. B. Turner, van Gogh, Bauhaus), aber sie lieferte auch diverse Anregungen fur die Philosophie, die Musik, die Neurophysiologie (die Theorie der Farbwahrnehmung) und die Ordnung von Farbraumen (die Farbmetrik). Eine Erforschung des Themas Farben kann nur in einem interdisziplinaren Ansatz erfolgen. In diesem Zusa

Photobiomodulation in the Brain - Low-Level Laser (Light) Therapy in Neurology and Neuroscience (Paperback): Michael R.... Photobiomodulation in the Brain - Low-Level Laser (Light) Therapy in Neurology and Neuroscience (Paperback)
Michael R. Hamblin, Ying-Ying Huang
R3,579 Discovery Miles 35 790 Ships in 10 - 15 working days

Photobiomodulation in the Brain: Low-Level Laser (Light) Therapy in Neurology and Neuroscience presents the fundamentals of photobiomodulation and the diversity of applications in which light can be implemented in the brain. It will serve as a reference for future research in the area, providing the basic foundations readers need to understand photobiomodulation's science-based evidence, practical applications and related adaptations to specific therapeutic interventions. The book covers the mechanisms of action of photobiomodulation to the brain, and includes chapters describing the pre-clinical studies and clinical trials that have been undertaken for diverse brain disorders, including traumatic events, degenerative diseases and psychiatric disorders.

A Popular History of Science (Paperback): Robert Routledge A Popular History of Science (Paperback)
Robert Routledge
R1,557 Discovery Miles 15 570 Ships in 18 - 22 working days
The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association (Hardcover): Watson Smith The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association (Hardcover)
Watson Smith
R842 Discovery Miles 8 420 Ships in 10 - 15 working days

This book (hardcover) is part of the TREDITION CLASSICS. It contains classical literature works from over two thousand years. Most of these titles have been out of print and off the bookstore shelves for decades. The book series is intended to preserve the cultural legacy and to promote the timeless works of classical literature. Readers of a TREDITION CLASSICS book support the mission to save many of the amazing works of world literature from oblivion. With this series, tredition intends to make thousands of international literature classics available in printed format again - worldwide.

The Electrical Researches (Paperback): James Clerk Maxwell, Henry Cavendish The Electrical Researches (Paperback)
James Clerk Maxwell, Henry Cavendish
R1,202 Discovery Miles 12 020 Ships in 18 - 22 working days
Road to Digital Divine (Hardcover): Hemant Gupta Road to Digital Divine (Hardcover)
Hemant Gupta
R843 Discovery Miles 8 430 Ships in 18 - 22 working days
The Golden Section - An Ancient Egyptian and Grecian Proportion (Hardcover): Steven L. Griffing The Golden Section - An Ancient Egyptian and Grecian Proportion (Hardcover)
Steven L. Griffing
R769 Discovery Miles 7 690 Ships in 18 - 22 working days
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