ELECTRICAL MACHINE DESIGN- THE DESIGN AND SPECIFICATION OF DIRECT AND ALTERNATING CURRENT MACHINERY by ALEXANDER GRAY. Originally published in 1913. PREFACE: The following work was compiled as a course of lectures on Electrical Machine Design delivered at Mo Gill University. Since the design of electrical machinery is as much an art as it is science no list of formula or collection of data is sufficient to enable one to become a successful designer. There is a certain amount of data, however, sifted from the mass of material on the subject, which every designer finds convenient to compile for ready reference. This work contains data that the author found necessary to tabulate during several years of experience as a designer of electrical apparatus. A study of design Is of the utmost importance to all students, because only by such a study can a knowledge of the limitations of machines be acquired. The machines discussed are those which have become more or less standard, namely, direct-cur rent generators and motors, alternating current generators, syn chronous motors, polyphase induction motors, and transformers; other apparatus seldom offers an electrical problem that is not discussed under one or more of the above headings. The principle followed throughout the work is to build up the design for the given rating by the use of a few fundamental formula*, and design constants, the meaning and limits of which are discussed thoroughly, and the same procedure has been followed for the several pieces of apparatus.

This book introduces the elements of the theory of real-valued functions of a real variable. The book is aimed at young mathematicians and others who would like to see a coherent account of basic analysis as a rigorous mathematical theory. It aims to avoid various extremes: It does not brush any of the serious difficulties in analysis proper under the carpet. The reader is assumed to be bright, and willing to work hard. It does not dwell on routine stuff. The reader has probably already taken a non-rigorous calculus course, and does not need to be led through that material again.

Politics by Other Means exploresprofound issues at the interface ofcontemporary religion and sciencefrom a global perspective. Broughttogether and thematically organizedin this volume are twenty-four essaysthat were originally presented atconferences in China, Germany, India, Indonesia, Iran, Israel, Lebanon, andSri Lanka. Many of the essays are morejournalistic in tone and content, whileothers adopt a more academic prosestyle and approach. All are provocativeand iconoclastic challenging scientifi cand religious orthodoxies, exploringthe great cultural ambivalences at theintersection of the domains of scienceand religion, and holding out thepossibility of a transformative politicsfor addressing the great challenges ofthe twenty-fi rst century.

ELEMENTARY CHEMICAL MICROSCOPY by MONNIN CHAMOTOriginally published in 1915. PREFACE TO SECOND EDITION: In the six years which have elapsed since the appearance of the first edition, the great majority of American Chemists have come to regard the microscope as a necessary adjunct to the chemical laboratory. The Great War brought us face to face with a multitude of intricate industrial and economic problems, in the solution of which the chemist was not slow to appreciate the importance and the value of industrial chemical microscopy. It is probable that a greater number of new applications of microscopic methods were made in our industries during the war than in the entire preceding quarter of a century. Since, however, this progress has been rather in applying existing methods to the solution of new problems, it has been thought best to preserve in this new edition the same view-point as in the old. This book is intended to serve as an introduction to the micro scope and its accessories as tools for the chemist to work with and even though practical applications are referred to, the author has made no effort, and has no desire, to have the book take the form of a manual of industrial microscopy. The changes made have been chiefly in the rearrangement of the Chapters, in the elaboration of the data presented and in the rewriting of obscure passages. Comparatively little new apparatus has been described or new methods introduced. Illustrations of the characteristic crystals constituting a satisfactory test for the elements and compounds discussed in Chapter XIV have been omitted as in the previous edition for two reasons, i The book is essentially a text and not a reference book. It cameinto being because of the necessity of providing a text for use by students in Cornell University. In this course, training in accurate observation is emphasized it has been found to lead to better results if the student is obliged to dis cover for himself, under guidance, the characteristic morphology of the materials studied and having found typical crystals, fibers, etc., to sketch them in his note-book. 2 The cost of the book to the student would have been very greatly increased. This explanation is not offered as an apology for the short comings of this book, which the author appreciates are many, but is given as an expression of his opinion that better work can be obtained from students providing there is adequate assistance given in the laboratory. In order to meet the often expressed needs of advanced students and of professional chemists, a Handbook of Microscopic Qualitative Analysis is in preparation which will be copiously illustrated by photo-micro graphs and which will thus serve to supplement the present introductory text. In answer to repeated requests, a brief synopsis of the course in Introductory Chemical Microscopy as now given in the Department of Chemistry, Cornell University, has been inserted in the Appendix. The author is indebted to Professor S. H. Gage and to Mr. C. W. Mason for many helpful suggestions in the preparation of this second edition. E. M. C. ITHACA, N. Y., Jan. 25, 1921. PREFACE TO FIRST EDITION: The American chemist, usually ready to accept with alacrity all time, labor and money saving devices, has been strangely backward in taking advantage of the benefits to be gained through the intelligent application of chemical microscopic methods in theindustries and in research...

Resistance to malaria. Blue eyes. Lactose tolerance. What do all of these traits have in common? Every one of them has emerged in the last 10,000 years.Scientists have long believed that the great leap forward" that occurred some 40,000 to 50,000 years ago in Europe marked end of significant biological evolution in humans. In this stunningly original account of our evolutionary history, top scholars Gregory Cochran and Henry Harpending reject this conventional wisdom and reveal that the human species has undergone a storm of genetic change much more recently. Human evolution in fact accelerated after civilization arose, they contend, and these ongoing changes have played a pivotal role in human history. They argue that biology explains the expansion of the Indo-Europeans, the European conquest of the Americas, and European Jews' rise to intellectual prominence. In each of these cases, the key was recent genetic change: adult milk tolerance in the early Indo-Europeans that allowed for a new way of life, increased disease resistance among the Europeans settling America, and new versions of neurological genes among European Jews.Ranging across subjects as diverse as human domestication, Neanderthal hybridization, and IQ tests, Cochran and Harpending's analysis demonstrates convincingly that human genetics have changed and can continue to change much more rapidly than scientists have previously believed. A provocative and fascinating new look at human evolution that turns conventional wisdom on its head, The 10,000 Year Explosion reveals the ongoing interplay between culture and biology in the making of the human race.

Looking at the uniqueness of each biological form, I assume that the designs of a biological form must be determined by a regulative system coded by certain groups of invariant proteins. The mechanism in charge of combining these proteins in specific patterns to produce design programs I call primordialization. A design program determines the design and the layout of the structures of the organism during its embryonic development. The patterns of proteins' combinations in primordial programs cannot be shifted one into another by environmental factors. If the amino acid sequence of any of the participating proteins is altered, the design program will obliterate. In case such an alteration happens inside an egg cell, one of the two possibilities is expected to occur. Either the affected cell is no longer viable and dies out, or develops into a creature with indistinct body design. Alteration of the proteins involved in a design program can occur also at any time during an organism's development and later. In such situations the affected cells can turn into a cancer cell

This book came about because there are scientific controversial matters that gnawed away at my peace of mind. So when I retired, I finally had time to write about biomedical topics, about some of the weird phenomena of physics, about the minds of suicide bombers, and about less serious subjects such as the condominium swimming pool. My original intention was to have some of this stuff published in a recognized journal, but one can die (and authors frequently do exactly that) while waiting for publication. Then, my daughter Alice suggested a Web site. What a brilliant and politically-correct idea Eventually, I filled the Web site with 22 short essays. So instead of scientists who are relatively impervious to change, I managed to attract some intelligent laypersons. Many of them urged me to assemble a book out of the essays, but this required expansion: figures, tables, equations, references. The equations are (mercifully) hidden as appendixes at the back of the book. I started to extract an Index, but abandoned it as being unnecessary, in the hope that the title of each Chapter hints at its contents.

Start your journey towards a career in science. Covering all the Core content you need to know with clear definitions alongside practice questions, this T level textbook gives you the skills and confidence to succeed in your written assessment and industry placement. Created in partnership with NCFE and written by highly respected author Stephen Hoare. - Get started with short, clear summaries and learning outcomes at the beginning of each chapter - Develop the scientific, mathematical, technical and communication skills you need - Track your progress and check understanding using the 'Test yourself' activities - Understand and remember key scientific terms using the highlighted definitions - Prepare for your placement with tips on best practice in the workplace, alongside case studies and activities that reflect real-life situations and build problem-solving skills - Approach assessment with confidence using the knowledge-based questions and scenario-based activities for practice, alongside model answers for the extended response questions This textbook covers the Core content for Science T Level. The Occupational Specialisms for this course are: Laboratory Sciences, Food Sciences and Metrology Sciences.