Short-Cut Math is a concise, remarkably clear compendium of about 150 math short-cuts — timesaving tricks that provide faster, easier ways to add, subtract, multiply, and divide.By using the simple foolproof methods in this volume, you can double or triple your calculation speed — even if you always hated math in school. Here's a sampling of the amazingly effective techniques you will learn in minutes: Adding by 10 Groups; No-Carry Addition; Subtraction Without Borrowing; Multiplying by Aliquot Parts; Test for Divisibility by Odd and Even Numbers; Simplifying Dividends and Divisors; Fastest Way to Add or Subtract Any Pair of Fractions; Multiplying and Dividing with Mixed Numbers, and more.The short-cuts in this book require no special math ability. If you can do ordinary arithmetic, you will have no trouble with these methods. There are no complicated formulas or unfamiliar jargon — no long drills or exercises. For each problem, the author provides an explanation of the method and a step-by-step solution. Then the short-cut is applied, with a proof and an explanation of why it works.Students, teachers, businesspeople, accountants, bank tellers, check-out clerks — anyone who uses numbers and wishes to increase his or her speed and arithmetical agility, can benefit from the clear, easy-to-follow techniques given here.

    Every technology we rely on today was created by the human mind, seeking to understand the universe around us. Scientific knowledge is our most precious possession, and our future will be shaped by the breakthroughs to come. In this personal and fascinating work, Neil Turok, Director of the Perimeter Institute for Theoretical Physics, explores the transformative scientific discoveries of the past three centuries -- from classical mechanics, to the nature of light, to the bizarre world of the quantum, and the evolution of the cosmos. Each new discovery has, over time, yielded new technologies causing paradigm shifts in the organization of society. Now, he argues, we are on the cusp of another major transformation: the coming quantum revolution that will supplant our current, dissatisfying digital age. Facing this brave new world, Turok calls for creatively re-inventing the way advanced knowledge is developed and shared, and opening access to the vast, untapped pools of intellectual talent in the developing world. Scientific research, training, and outreach are vital to our future economy, as well as powerful forces for peaceful global progress.

    

    But from the perspective of mathematics, groupings of ten are arbitrary, and can have serious shortcomings. Twelve would be better for divisibility, and eight is smaller and well suited to repeated halving. Grouping by two, as in binary code, has turned out to have its own remarkable advantages.Paul Lockhart reveals arithmetic not as the rote manipulation of numbers--a practical if mundane branch of knowledge best suited for balancing a checkbook or filling out tax forms--but as a set of ideas that exhibit the fascinating and sometimes surprising behaviors usually reserved for higher branches of mathematics. The essence of arithmetic is the skillful arrangement of numerical information for ease of communication and comparison, an elegant intellectual craft that arises from our desire to count, add to, take away from, divide up, and multiply quantities of important things. Over centuries, humans devised a variety of strategies for representing and using numerical information, from beads and tally marks to adding machines and computers. Lockhart explores the philosophical and aesthetic nature of counting and of different number systems, both Western and non-Western, weighing the pluses and minuses of each.A passionate, entertaining survey of foundational ideas and methods, Arithmetic invites readers to experience the profound and simple beauty of its subject through the eyes of a modern research mathematician.

    Earth, born in a nuclear explosion, is a radioactive planet; without radiation, life would not exist. And while radiation can be dangerous, it is also deeply misunderstood and often mistakenly feared. Now Robert Peter Gale, M.D,—the doctor to whom concerned governments turned in the wake of the Chernobyl and Fukushima disasters—in collaboration with medical writer Eric Lax draws on an exceptional depth of knowledge to correct myths and establish facts. Exploring what have become trigger words for anxiety—nuclear energy and nuclear weapons, uranium, plutonium, iodine-131, mammogram, X-ray, CT scan, threats to the food chain—the authors demystify the science and dangers of radiation, and examine its myriad benefits, from safely sterilizing our food to the relatively low-risk fuel alternative of nuclear energy. This is the book for all readers who have asked themselves questions such as: What kinds of radiation, and what degree of exposure, cause cancer? What aftereffects have nuclear accidents and bombs had? Does radiation increase the likelihood of birth defects? And how does radiation work? Hugely illuminating, Radiation is the definitive road map to our post-Chernobyl, post-Fukushima world.

    The book begins with relevant scientific fundamentals and progresses through an exploration of the solar system, stars, galaxies, and cosmology. The Astronomy textbook builds student understanding through the use of relevant analogies, clear and non-technical explanations, and rich illustrations. Mathematics is included in a flexible manner to meet the needs of individual instructors.

    Called by some, "the theory of everything," superstrings may solve a problem that has eluded physicists for the past 50 years, the final unification of the two great theories of the twentieth century, general relativity and quantum field theory. Now, here is a thoroughly revised, second edition of a course-tested comprehensive introductory graduate text on superstrings which stresses the most current areas of interest, not covered in other presentations, including: - Four-dimensional superstrings - Kac-Moody algebras - Teichm�ller spaces and Calabi-Yau manifolds - M-theory Membranes and D-branes - Duality and BPS relations - Matrix models The book begins with a simple discussion of point particle theory, and uses Feynman path integrals to unify the presentation of superstrings. It has been updated throughout, and three new chapters on M-theory have been added. Prerequisites are an acquaintance with quantum mechanics and relativity.

    

    The MOST IMPORTANT, INFORMATIVE AND EXPLOSIVE BOOK EVER WRITTEN ABOUT THE ANUNNAKI, THEIR WORLD, THEIR RETURN TO EARTH, AND PLAN FOR HUMANITY in:• 2,034 A.D. • 2,031-2,033 A.D. • 2,029 A.D. • 2,028 A.D. • 2,027-2,026 A.D. • 2,026 A.D. • 2,025 A.D. • 2,024 A.D. • 2,022-2023 A.D. • The author, Maximillien de Lafayette, have been so fortunate as to study with the Anunnaki Ulema who are the guardians of this knowledge in Egypt, Iraq, the islands of Arwad and Cyprus. This is the first time he is making use of this depot of knowledge about the Return of the Anunnaki to Planet Earth, and we are very lucky to have access to it. The subjects introduced in this book are explosive. Most important is the fact that it reveals the potential return of the Anunnaki in 2022, and the most frightening transformation that it would bring to the earth. If this is going to happen, a huge number of the people on earth, those grossly contaminated by Grays’ DNA, will be annihilated. You know who they are – the child murderers, the rapists, those who torture, those who abuse, the vicious politicians, the slaves of money and power, etc. Yes, we all know who they are. But the Anunnaki, who have no false sentimentality at all, will not tolerate even a medium level contamination. Unless they do their best to clean themselves during the grace period of the next 9 years, those of mid level contamination will also be destroyed. Those who would manage to clean themselves to a certain degree may possibly (but without any guarantee) be able to escape the burning, smoking earth through special portals, called Ba’abs. For those of us interested in the use of esoteric codes, they are here for you to learn. Each term will teach you how to use it for your benefit, how to apply it not only to your spiritual growth, but to your business, relationships, and daily life. You will learn how to interpret the codes in many ancient languages, how to build a physical amulet/code that will protect certain aspects of your life, and how to develop your psychic and extrasensory powers by simply using these codes. You will learn how the Anunnaki, our original creators, and how God fit into all this. Religion, true and false, will be explored. Jesus, who never really died on the Cross, will be shown as a historical figure, with his wife, Mary Magdalene, with whom he escaped to ancient Marseille. Who were Adam and Eve? Who was the Serpent? How do the gods of Sumer signify to us? The book is arranged in the time-honoured tradition of questions and answers.The return of the Anunnaki is not a new idea. It has been already announced in sacred scriptures, but of course interpreted differently. Some said Jesus is an Anunnaki, and he will return as a cosmic Messiah. A new school of religious thought in Iran suggests that Mohammed will return as a celestial being. And we should not to forget the Rapture and the Gnostics as well. But all of them have their origin in the Anunnaki texts, because these texts were written thousands of years before the Old Testament, the New Testament, and the Quran. The book will explore this topic and includes:• What Is Going To Happen To Organized Religions?• How Will The Human Mind Benefit From The Anunnaki Connection?.• What Will Happen To The Teachings Of Jesus, Moses, Mohammed, And Buddha, If The Anunnaki Demolish All Religions And Our Religious Beliefs Systems?• What Will Happen To The Vast Number

    In this book you will find some shocking details of the great figures of science such as Newton, Galileo, Kepler, Copernicus and Kant, presented with the characteristic humor that only a popularizer of science as Sergio de Regules could bring to this wonderful collection of essays.

    The addition of this book is a must for all upper-level Christian school curricula and for college students and adults interested in math or related fields of science and religion. It will serve as a solid refutation for the claim, often made in court, that mathematics is one subject, which cannot be taught from a distinctively Biblical perspective.

    Organized around the central concept of a vector space, the book includes numerous physical applications in the body of the text as well as many problems of a physical nature. It is also one of the purposes of this book to introduce the physicist to the language and style of mathematics as well as the content of those particular subjects with contemporary relevance in physics.Chapters 1 and 2 are devoted to the mathematics of classical physics. Chapters 3, 4 and 5 — the backbone of the book — cover the theory of vector spaces. Chapter 6 covers analytic function theory. In chapters 7, 8, and 9 the authors take up several important techniques of theoretical physics — the Green's function method of solving differential and partial differential equations, and the theory of integral equations. Chapter 10 introduces the theory of groups. The authors have included a large selection of problems at the end of each chapter, some illustrating or extending mathematical points, others stressing physical application of techniques developed in the text.Essentially self-contained, the book assumes only the standard undergraduate preparation in physics and mathematics, i.e. intermediate mechanics, electricity and magnetism, introductory quantum mechanics, advanced calculus and differential equations. The text may be easily adapted for a one-semester course at the graduate or advanced undergraduate level.

    Now, in this fast-paced, colorful biography, Gale E. Christianson paints anengaging portrait of Newton and the times in which he lived. We follow Newton from his childhood in rural England to his student days at Cambridge, where he devoured the works of Copernicus, Kepler, and Galileo, and taught himself mathematics. There ensued two miraculous years at home in Woolsthorpe Manor, where he fled when plague threatened Cambridge, aremarkably fertile period when Newton formulated his theory of gravity, a new theory of light, and calculus--all by his twenty-fourth birthday. Christianson describes Newton's creation of the first working model of the reflecting telescope, which brought him to the attention of the Royal Society, and he illuminates the eighteen months of intense labor that resulted in his Principia, arguably the most important scientific work ever published. The book sheds light on Newton's later life as master of the mint in London, where he managed to convict and hang the arch criminal William Chaloner (aremarkable turn for a once reclusive scholar), and his presidency of the Royal Society, which he turned from a dilettante's club into an eminent scientific organization. Christianson also explores Newton's less savory side, including his long, bitter feud with Robert Hooke and the underhanded waythat Newton established his priority in the invention of calculus and tarnished Liebniz's reputation. Newton was an authentic genius with all too human faults. This book captures both sides of this truly extraordinary man.

    Beautifully illustrated with old engravings as well as contemporary imagery, Sacred Number introduces basic counting systems; significant numbers from major religious texts; the importance of astronomy, geometry, and music to number quality; how numbers affect architecture. Lundy explains why the ideas of Pythagoras still resonate, and she profiles each number from one to ten to show its distinct qualities: why, for example, the golden section is associated with five, and seven with the Virgin Mary.

    This hilarious and informative book is designed for anyone who is sci-curious and wants to know more about the world around them, especially the elements of everyday science that other books ignore.