Sixteen weeks later, Frank Borman, Jim Lovell, and Bill Anders were aboard the first manned spacecraft to depart Earth’s orbit, reach the moon, and return safely to Earth, delivering a tear-inducing Christmas Eve message along the way.

    Breaking down the symbols themselves, they pose a series of questions: What is energy? What is mass? What has the speed of light got to do with energy and mass? In answering these questions, they take us to the site of one of the largest scientific experiments ever conducted. Lying beneath the city of Geneva, straddling the Franco-Swiss boarder, is a 27 km particle accelerator, known as the Large Hadron Collider. Using this gigantic machine—which can recreate conditions in the early Universe fractions of a second after the Big Bang—Cox and Forshaw will describe the current theory behind the origin of mass.Alongside questions of energy and mass, they will consider the third, and perhaps, most intriguing element of the equation: 'c' - or the speed of light. Why is it that the speed of light is the exchange rate? Answering this question is at the heart of the investigation as the authors demonstrate how, in order to truly understand why E=mc2, we first must understand why we must move forward in time and not backwards and how objects in our 3-dimensional world actually move in 4-dimensional space-time. In other words, how the very fabric of our world is constructed. A collaboration between two of the youngest professors in the UK, Why Does E=mc2? promises to be one of the most exciting and accessible explanations of the theory of relativity in recent years.

    With his trademark clarity and humor, Holt probes the mysteries of quantum mechanics, the quest for the foundations of mathematics, and the nature of logic and truth. Along the way, he offers intimate biographical sketches of celebrated and neglected thinkers, from the physicist Emmy Noether to the computing pioneer Alan Turing and the discoverer of fractals, Benoit Mandelbrot. Holt offers a painless and playful introduction to many of our most beautiful but least understood ideas, from Einsteinian relativity to string theory, and also invites us to consider why the greatest logician of the twentieth century believed the U.S. Constitution contained a terrible contradiction--and whether the universe truly has a future.

    From archaeological misinformation to investigations into the nature of modern public policy, Professor Loewen challenges you to consider the history of what "was" rather than what has been told by standard teaching methods and textbooks"--Container.

    The answer: with the essentials. Now, finally satisfy your desire for scientific inquiry in a way that makes this enormous field accessible, understandable, and undeniably captivating. Professor Viskontas boils down the scientific world into 12 key concepts every educated person should know. Devoting two lectures to each concept to give you more time to engage with it, her 24-lecture series is an engaging and enlightening introduction to everything from the behavior of subatomic particles to the latest theories about the Big Bang. Throughout, you'll get accessible looks at key building blocks of scientific knowledge, including brain plasticity, fluid mechanics, electromagnetism, genetics, quantum theory, emergence, evolution, thermodynamics, the Big Bang, and the nature of matter. Each concept is presented in a clear, concise way that will inform and delight you, and that will give you the opportunity to probe the invisible life of living cells, visit the universe seconds after its birth, and much more. Concepts that may have eluded you in school, that you may not be familiar with, or that you simply never appreciated for their intricate beauty are now brought to vivid life in a way that sticks. Welcome to the world of science - reduced to its powerful essence.

    King (William and Mary University) delves into the story of how, why, where, and when we became human. These lectures will help you understand the forces that have shaped, and continue to shape, our species. "An evolutionary perspective on human behavior," notes Dr. King, "results in more than just knowledge about dates and sites when and where specific evolutionary milestones likely occurred." "It is also a window on the past and future of our species. An entirely new way of thinking comes into focus when we consider the human species within an evolutionary perspective."A Century of ScholarshipWhile covering these subjects in this 24-lecture series, Dr. King synthesizes the best that more than a century of scientific scholarship has to offer across a variety of disciplines. Biological anthropologists study primate anatomy and behavior both to understand evolution and to learn more about our common ancestor. Biological anthropologists are joined by molecular anthropologists to better understand hominids by studying fossils, ancient skeletal remains, and lifestyle information such as cave art and stone tools. Case Studies that Clarify Evolution and Its Power Dr. King begins by explaining key mechanisms through which evolution functions, citing famous and definitive case studies that demonstrate these forces. In one such landmark study, for example, biologists Peter and Rosemary Grant returned to the Galapagos Islands more than 100 years after Darwin's first voyage to conduct research on island finches. In 1977, a drought-induced scarcity of soft, edible seeds brought forth in the very next generation a population of finches with larger, stronger beaks capable of crushing larger, tougher seeds. Extraordinarily, in 1985, heavy rains produced a surplus of softer seeds, and natural selection produced a succeeding generation of the smaller-beaked variety. Evolution had occurred in two different directions within a decade. This "natural selection" is the theoretical tool of evolution, which helps us make sense of these facts. Why Evolution Remains Important to Us Today Perhaps the greatest measure of this theory's power is its relevance to our lives today. - Did you know that the gene which causes sickle cell anemia must be inherited from both parents to cause the disease but the disease does not occur when only a single gene is inherited? - Or that the single gene, in fact, affords protection from malaria? Or that race, a category so securely ingrained in our consciousness, is practically meaningless in biological terms? - Or how to evaluate the claim that a gene can be responsible for a certain personality trait? A Glimpse Into Our Selected Primate Heritage With an understanding of the basic mechanisms of evolutionary change in hand, the course looks at how our ancient primate ancestors adapted. Consider the anatomical features we share with monkeys, great apes, and other primates. Our large brains, grasping hands, and forward-facing eyes allowing us to perceive depth are critical to the way we function in the world. Yet the fossil record tells us that some 70 million years ago these distinctive primate features did not exist. What caused the first primates to emerge from existing mammalian populations? One proposed solution was that the appearance of insects living in the lower canopies of trees offered a plentiful food resource to those species adapted to procure it. Could depth perception and grasping ability have provided an advantage here, and hence been naturally selected? This is the function of biological anthropology: confronting the facts, then suggesting and testing possibilities. A Course as Much About the Present as the PastWith so much of evolutionary history taken up with the past, the insights gained in these lectures may tempt you to add questions of your own: - Is human evolution still a force in today's world? Hasn't our modern, mobile culture rendered evolution irrelevant? - In fact, human evolution is a stronger force than ever, interacting with human culture in complex ways. Issues such as obesity, AIDS, and genetics are all discussed. And you may well find these lectures opening your eyes to the extraordinary ways in which the biological power of natural selection is still at work in the world today. Course Lecture Titles1. What is Biological Anthropology? 2. How Evolution Works 3. The Debate Over Evolution 4. Matter Arising—New Species 5. Prosimians, Monkeys, and Apes 6. Monkey and Ape Social Behavior 7. The Mind of the Great Ape 8. Models for Human Ancestors? 9. Introducing the Hominids 10. Lucy and Company 11. Stones and Bones 12. Out of Africa 13. Who Were the Neandertals? 14. Did Hunting Make Us Human? 15. The Prehistory of Gender 16. Modern Human Anatomy and Behavior 17. On the Origins of Homo sapiens 18. Language 19. Do Human Races Exist? 20. Modern Human Variation 21. Body Fat, Diet, and Obesity 22. The Body and Mind Evolving 23. Tyranny of the Gene? 24. Evolution and Our Future

    Our Big Bang, our distant future, parallel worlds, the sub-atomic and intergalactic - none of them are what they seem. But there is a way to understand this immense strangeness - mathematics. Seeking an answer to the fundamental puzzle of why our universe seems so mathematical, Tegmark proposes a radical idea: that our physical world not only is described by mathematics, but that it is mathematics. This may offer answers to our deepest questions: How large is reality? What is everything made of? Why is our universe the way it is?Table of ContentsPreface 1 What Is Reality? Not What It Seems • What’s the Ultimate Question? • The Journey Begins Part One: Zooming Out 2 Our Place in Space Cosmic Questions • How Big Is Space? • The Size of Earth • Distance to the Moon • Distance to the Sun and the Planets • Distance to the Stars • Distance to the Galaxies • What Is Space? 3 Our Place in TimeWhere Did Our Solar System Come From? • Where Did theGalaxies Come From? • Where Did the Mysterious MicrowavesCome From? • Where Did the Atoms Come From? 4 Our Universe by NumbersWanted: Precision Cosmology • Precision Microwave-Background Fluctuations • Precision Galaxy Clustering • The Ultimate Map of Our Universe • Where Did Our Big Bang Come From? 5 Our Cosmic Origins What’s Wrong with Our Big Bang? • How Inflation Works • The Gift That Keeps on Giving • Eternal Inflation 6 Welcome to the Multiverse The Level I Multiverse • The Level II Multiverse • Multiverse Halftime Roundup Part Two: Zooming In 7 Cosmic Legos Atomic Legos • Nuclear Legos • Particle-Physics Legos • Mathematical Legos • Photon Legos • Above the Law? • Quanta and Rainbows • Making Waves • Quantum Weirdness • The Collapse of Consensus • The Weirdness Can’t Be Confined • Quantum Confusion 8 The Level III Multiverse The Level III Multiverse • The Illusion of Randomness • Quantum Censorship • The Joys of Getting Scooped • Why Your Brain Isn’t a Quantum Computer • Subject, Object and Environment • Quantum Suicide • Quantum Immortality? • Multiverses Unified • Shifting Views: Many Worlds or Many Words? Part Three: Stepping Back 9 Internal Reality, External Reality and Consensus Reality External Reality and Internal Reality • The Truth, the Whole Truth and Nothing but the Truth • Consensus Reality • Physics: Linking External to Consensus Reality 10 Physical Reality and Mathematical Reality Math, Math Everywhere! • The Mathematical Universe Hypothesis • What Is a Mathematical Structure? 11 Is Time an Illusion? How Can Physical Reality Be Mathematical? • What Are You? • Where Are You? (And What Do You Perceive?) • When Are You? 12 The Level IV Multiverse Why I Believe in the Level IV Multiverse • Exploring the Level IV Multiverse: What’s Out There? • Implications of the Level IV Multiverse • Are We Living in a Simulation? • Relation Between the MUH, the Level IV Multiverse and Other Hypotheses •Testing the Level IV Multiverse 13 Life, Our Universe and Everything How Big Is Our Physical Reality? • The Future of Physics • The Future of Our Universe—How Will It End? • The Future of Life •The Future of You—Are You Insignificant? Acknowledgments Suggestions for Further Reading Index

    But are there limits to what we can discover about our physical universe?In this very personal journey to the edges of knowledge, Marcus du Sautoy investigates how leading experts in fields from quantum physics and cosmology, to sensory perception and neuroscience, have articulated the current lie of the land. In doing so, he travels to the very boundaries of understanding, questioning contradictory stories and consulting cutting edge data.Is it possible that we will one day know everything? Or are there fields of research that will always lie beyond the bounds of human comprehension? And if so, how do we cope with living in a universe where there are things that will forever transcend our understanding?In What We Cannot Know, Marcus du Sautoy leads us on a thought-provoking expedition to the furthest reaches of modern science. Prepare to be taken to the edge of knowledge to find out if there’s anything we truly cannot know.

    Professor Hans-Friedrich Mueller, of Union College in Schenectady, New York, makes this ancient world come alive in 24 lectures with captivating stories of intrigue, artifacts, illustrations, and detailed descriptions from primary sources of intriguing personalities. In the ancient Mediterranean area, religion was not separate from daily life. To the contrary, religion was daily life. The many dozen gods of this ancient world were everywhere, with spirits inhabiting every crack and crevice of life. These polytheists believed they had a strict contract with their deities: If they took care of their gods, their gods would take care of them (or at least not harm them). Consequently, they built extraordinary temples to honor their deities, brought food and wine to them, sacrificed animals for them, and held sacred meals with their gods. In fact, they followed numerous rules and regulations that circumscribed almost all aspects of life both inside and outside the home - anything and everything to keep the gods happy. Consequently, the religious practices of the ancient Mediterranean make a wonderful lens through which to develop a deeper understanding of their world.

    As a flight director in NASA’s Mission Control, Kranz witnessed firsthand the making of history. He participated in the space program from the early days of the Mercury program to the last Apollo mission, and beyond. He endured the disastrous first years when rockets blew up and the United States seemed to fall further behind the Soviet Union in the space race. He helped to launch Alan Shepard and John Glenn, then assumed the flight director’s role in the Gemini program, which he guided to fruition. With his teammates, he accepted the challenge to carry out President John F. Kennedy’s commitment to land a man on the Moon before the end of the 1960s. Kranz recounts these thrilling historic events and offers new information about the famous flights. What appeared as nearly flawless missions to the Moon were, in fact, a series of hair-raising near misses. When the space technology failed, as it sometimes did, the controllers’ only recourse was to rely on their skills and those of their teammates. He reveals behind-the-scenes details to demonstrate the leadership, discipline, trust, and teamwork that made the space program a success. A fascinating firsthand account by a veteran mission controller of one of America’s greatest achievements, Failure is Not an Option reflects on what has happened to the space program and offers his own bold suggestions about what we ought to be doing in space now.

    Course Lecture TitlesWhat is Judaism?The Stages of HistoryThe Jewish LibraryThe Emergence of Rabbinic JudaismJewish WorshipPrayer and the SynagogueThe CalendarA Communal Life-CycleIndividual Life-CyclesGod and Man; God and CommunityPhilosophers and MysticsThe Legal Frameworks of JudaismHalakhaCommon Judaismor a Plurality of Judaisms?Judaism and Others

    You learn the points of view your teachers provide, the perspectives that books offer, and the conclusions you draw yourself based on the facts you were given. Hearing different angles on historical events gives you a more insightful, more accurate, and more rewarding understanding of events – especially when a new viewpoint challenges the story you thought you knew.

    But what was it like to actually live in those extraordinary times? Now you can find out.These 36 lectures provide a different perspective on the society and culture of the Middle Ages - one that entrenches you in the daily human experience of living during this underappreciated era. Drawing on history, literature, the arts, technology, and science, these lectures will deepen the way you understand not only the Middle Ages but everything that came afterward: From the Renaissance, to the Enlightenment, to your own world.Filled with amazing insights, this series brings you closer than ever before to life as it was lived and felt. You'll meet the likes of William Caxton, England's first printer who not only printed and distributed a variety of works but also often had to translate them himself; learn about Hugh of Payns and the role of his Knights Templar - organized for the protection of pilgrims traveling to Jerusalem - in the creation of the first modern bank; see how communities dealt with marriage in a time when the church had not yet drawn this institution into its orbit; and much more.Rich with information and period detail (including revealing examples of medieval literature from the English, French, Norse, Icelandic, and Italian worlds), these lectures will dramatically increase your understanding of how lives in the Middle Ages were really lived.

    Guelzo. Professor Guelzo, "formerly of Eastern University, is Henry R. Luce Professor of the Civil War Era and Professor of History at Gettysburg College. He holds an M.A. and a PhD. in hsitory from the University of Pennsylvania, an M.Div. from Philadelphia Theological Seminary, and an honorary doctorate in history from Lincoln College. His teaching awards include the American Library Association Choice Award. His book Abraham Lincoln: Redeemer President has won several prizes." (The Teaching Company)

    This series contains 24 lectures, each one focusing on a different "turning point" since 1400.