Collected here to keep your wits sharp, The Best Brain Teasers of All Time features the cleverest brain teasers from around the world and throughout history.The Best Brain Teasers of All Time gives you hours of fun-filled entertainment with brain teasers that develop your problem-solving skills in math, logic, and wordplay. Organized as an integrated challenge, these brain teasers build in momentum as they increase in difficulty from classic nursery rhymes to the riddle of the sphinx.The Best Brain Teasers of All Time puts your mind to the test with: 125 Brain Teasers that require no special skills to solve. Plus, each question comes with an optional clue in case you get stumped and a handy answer key in the back to test yourself or play with friends Brain Teasers for Every Level that cater to beginners and advanced masterminds alike, with brain teasers organized by level of difficulty to improve your skills as you move forward Hints of History that provide fun facts and background information for every brain teaser Get ready to sharpen your wit with every “aha” moment. The Best Brain Teasers of All Time is a go-to source for timeless fun and mind-blowing challenges.

    In The Curse of Cash, Kenneth Rogoff, one of the world's leading economists, makes a persuasive and fascinating case for an idea that until recently would have seemed outlandish: getting rid of most paper money.Even as people in advanced economies are using less paper money, there is more cash in circulation--a record $1.4 trillion in U.S. dollars alone, or $4,200 for every American, mostly in $100 bills. And the United States is hardly exceptional. So what is all that cash being used for? The answer is simple: a large part is feeding tax evasion, corruption, terrorism, the drug trade, human trafficking, and the rest of a massive global underground economy.As Rogoff shows, paper money can also cripple monetary policy. In the aftermath of the recent financial crisis, central banks have been unable to stimulate growth and inflation by cutting interest rates significantly below zero for fear that it would drive investors to abandon treasury bills and stockpile cash. This constraint has paralyzed monetary policy in virtually every advanced economy, and is likely to be a recurring problem in the future.The Curse of Cash offers a plan for phasing out most paper money--while leaving small-denomination bills and coins in circulation indefinitely--and addresses the issues the transition will pose, ranging from fears about privacy and price stability to the need to provide subsidized debit cards for the poor.While phasing out the bulk of paper money will hardly solve the world's problems, it would be a significant step toward addressing a surprising number of very big ones. Provocative, engaging, and backed by compelling original arguments and evidence, The Curse of Cash is certain to spark widespread debate.

    John Archibald Wheeler's fascinating life brings us face to face with the central characters and discoveries of modern physics. He was the first American to learn of the discovery of nuclear fission, later coined the term "black hole," led a renaissance in gravitation physics, and helped to build Princeton University into a mecca for physicists.From nuclear physics, to quantum theory, to relativity and gravitation, Wheeler's work has set the trajectory of research for half a century. His career has brought him into contact with the most brilliant minds of his field; Fermi, Bethe, Rabi, Teller, Oppenheimer, and Wigner are among those he called colleagues and friends. In this rich autobiography, Wheeler reveals in fascinating detail the excitement of each discovery, the character of each colleague, and the underlying passion for knowledge that drives him still.

    

    to A.D. 1600. The lectures begin by asking just what "Western civilization" actually is, or what it has been thought to be. Throughout the lectures, there are reflections on where Western civilization finds its primary locus at any given moment - beginning in the ancient Near East and moving to Greece, then to Rome; exploring the shape and impact of large ancient empires, including the Persian, Alexander the Great's, and Rome's; then moving on to Western Europe, and witnessing Europe's gradual physical and cultural expansion, into finally the globalization of Western civilization with the Portuguese and Spanish voyages of exploration and discovery.

    But how it gets from the ground to the glass is far more convoluted than we might think.In this revised edition of Drinking Water, UCLA professor and environmental policy expert James Salzman shows how drinking water highlights the most pressing issues of our time. He adds eye-opening, contemporary examples about our relationship to and consumption of water, and a new chapter about the tragedies that occurred in Flint, Michigan. Provocative, insightful, and engaging, Drinking Water shows just how complex a simple glass of water can be.

    With this book, discover how to get the best sound for your money, how to identify the weak links in your system and upgrade where it will do the most good, how to set up and tweak your system for maximum performance, and how to become a more perceptive and appreciative listener. Just a few of the secrets you will learn cover high-end sound on a budget, how to do it cheap and still do it right; five system set-up mistakes and how to avoid them; how to make your speakers sound up to 50% better, at no cost; how to choose and set up a computer-based music system; how to find the one speaker in 50 worth owning; and why all 100-watt amplifiers don't sound the same. Since the first edition's publication in 1994, The Complete Guide to High-End Audio has been considered the essential reference on high-quality music reproduction, with more than 150,000 copies sold in five languages.

    Their methods of self-reliance and their sublime knowledge profoundly impacted society, such that the dominant powers felt threatened and the tradition was forced to disappear from public view. Now, after centuries of obscurity, the Gnostics have re-emerged, still carrying their profound message of Gnosis: knowledge of self and the Divine. In a simple and elegant way, Samael Aun Weor explains the basic methodology for people in today's world to begin to approach the greater mysteries of the Gnostics. In this basic and practical guide, Samael Aun Weor offers a breadth of exercises guiding the reader to discover within themselves a wealth of insight and understanding. Gnosis, after all, is Greek for "knowledge," and the seeker is told, "Know thyself, and thou shalt know the universe and its Gods." "A great author deduced that the human being needs eight important things in life: health and the conservation of life, nourishment, sleep, money and the things money can buy, life in the beyond, sexual satisfaction, the well-being of his children, and a sense of proper importance. We synthesize these eight things into three: Health, Money, Love. If you really want to acquire these three things, you should study and practice everything that this course teaches you. We will show you the path of success." - Samael Aun Weor

    What happened during those years and what has happened since to refine the understanding of this phenomenon is the fascinating story told here.We move from a coffee shop in Zurich, where Einstein and Max von Laue discuss the madness of quantum theory, to a bar in Brazil, as David Bohm and Richard Feynman chat over cervejas. We travel to the campuses of American universities—from J. Robert Oppenheimer’s Berkeley to the Princeton of Einstein and Bohm to Bell’s Stanford sabbatical—and we visit centers of European physics: Copenhagen, home to Bohr’s famous institute, and Munich, where Werner Heisenberg and Wolfgang Pauli picnic on cheese and heady discussions of electron orbits.Drawing on the papers, letters, and memoirs of the twentieth century’s greatest physicists, Louisa Gilder both humanizes and dramatizes the story by employing their own words in imagined face-to-face dialogues. Here are Bohr and Einstein clashing, and Heisenberg and Pauli deciding which mysteries to pursue. We see Schrödinger and Louis de Broglie pave the way for Bell, whose work is here given a long-overdue revisiting. And with his characteristic matter-of-fact eloquence, Richard Feynman challenges his contemporaries to make something of this entanglement.

    Even when it wasn't raining, it was about to rain, or had just rained. It's a very angry sky.” – Colin Hay Scotland is a fascinating and ancient land filled with history. It has produced explorers, warriors, inventors, writers, and more than a few murderers. For many centuries, it fought bitter wars against England to maintain its independence, and even when those wars were finally lost, Scotland retained its distinct culture and identity. Though a part of the United Kingdom, it would be a mistake to lump it in with England, Wales, and Northern Ireland, as Scotland has its own tales to tell and traditions to maintain. Not everything in Scotland is as it appears, however. Some Scots say this is a land haunted by spirits, a place of strange disappearances and unexplained phenomena. There is no shortage when it comes to the strange stories Scotland has to offer, and the legends and lore have compelled many to dig a little deeper and even explore this wonderful land for themselves. Some of those tales are downright grisly. Scotland has always been a rival to its southern neighbor, and the rivalry extends to the number of hauntings in its medieval castles, stately homes, and old cobblestone streets. While many Englishmen claim that their country is the most haunted, the Scots can point to their own stories of ghosts as evidence they may beat the English in this dubious distinction. The Ghosts of Scotland: A Collection of Ghost Stories across the Scottish Nation is a collection of such tales, just a few among the thousands of local legends and modern sightings that make Scotland one of the most haunted countries in the world. It is part of a collection of other books written by Sean McLachlan, including The Ghosts of England: A Collection of Ghost Stories across the English Nation and The Ghosts of Ireland: A Collection of Ghost Stories across the Emerald Isle. For other strange occurrences in Scotland, ranging from Nessie to jelly falling from the sky, check out another title in the series, Weird Scotland: Monsters, Mysteries, and Magic Across the Scottish Nation. Along with pictures of important people, places, and events, you will learn about the ghosts of Scotland like never before.

    The One Week Budget is for anyone that wants to manage their day-to-day money without the day-to-day hassle. Does this sound like you? What are you waiting for? Read the book already! Tiffany "The Budgetnista" Aliche

    The Times called it elegant, discursive, and littered with quotes and allusions from Aquinas via Gershwin to Woolf and The Philadelphia Inquirer praised it as absolutely scintillating. In this delightful new book, Robert Kaplan, writing together with his wife Ellen Kaplan, once again takes us on a witty, literate, and accessible tour of the world of mathematics. Where The Nothing That Is looked at math through the lens of zero, The Art of the Infinite takes infinity, in its countless guises, as a touchstone for understanding mathematical thinking. Tracing a path from Pythagoras, whose great Theorem led inexorably to a discovery that his followers tried in vain to keep secret (the existence of irrational numbers); through Descartes and Leibniz; to the brilliant, haunted Georg Cantor, who proved that infinity can come in different sizes, the Kaplans show how the attempt to grasp the ungraspable embodies the essence of mathematics. The Kaplans guide us through the Republic of Numbers, where we meet both its upstanding citizens and more shadowy dwellers; and we travel across the plane of geometry into the unlikely realm where parallel lines meet. Along the way, deft character studies of great mathematicians (and equally colorful lesser ones) illustrate the opposed yet intertwined modes of mathematical thinking: the intutionist notion that we discover mathematical truth as it exists, and the formalist belief that math is true because we invent consistent rules for it. Less than All, wrote William Blake, cannot satisfy Man. The Art of the Infinite shows us some of the ways that Man has grappled with All, and reveals mathematics as one of the most exhilarating expressions of the human imagination.

    All the chemical elements on earth except hydrogen-including the ones in our bodies-have been processed inside stars, scattered across the universe in great stellar explosions, and recycled to become new stars, planets, and parts of us. In this engrossing book, John and Mary Gribbin relate the developments in twentieth-century astronomy that have led to this shattering realization. They begin their account in the 1920s, when astronomers discovered that the oldest stars are chiefly composed of the primordial elements hydrogen and helium, produced in the birth of the universe in a Big Bang. They then describe the seminal work of the 1950s and 1960s, which unlocked the secret of how elements are "cooked" by nuclear fusion inside stars. The heart of the story is their discussion of supernovae, only recently understood as great stellar explosions in which the resulting ash is spread far and wide through the cosmos, forming new generations of stars, planets, and people. Focusing on the relationship between the universe and the Earth, the authors eloquently explain how the physical structure of the universe has produced conditions ideal for life.

    Undisputed heavyweight champion of the world. Prodigious, powerful boxer who won 50 of his 58 fights -- 44 by knockout. Lesser known is how Tyson became one of the fiercest fighters of all time. The absolutely improbable tale began when a troubled young kid met a cantankerous old trainer at a small boxing gym in the sleepy town of Catskill, New York. Cus D'Amato would change the whole trajectory of Tyson's life, teaching him everything he knew about success in and out of the ring, before dying just a year before his protege became the youngest heavyweight champion of the world at the age of 20. How did this hard-boiled trainer turn a kid who'd been abandoned by his parents, mercilessly bullied, and imprisoned for dozens of crimes, into a pedigree pugilist? How did he take an unfocused, insecure, lost young man and turn him into a champion who lived to train, fought with an unconquerable spirit, and positively lusted after victory? Cus did it by teaching Tyson the way of the warrior monk -- the art of focus and ferocity. In this short and punchy book, we uncover the five universally-applicable strategic principles of Cus' philosophy. Included are details on: The contents of Cus's library, and the books he gave Tyson to read Tyson's training routine The mental affirmations and tactics Cus shared with Tyson to strengthen his mind Cus's approach to making fear your friend instead of your foe No matter what kind of fight you're in, the savage wisdom of one of boxing's greatest minds will help you come out the victor.

    However, while physicists celebrated these momentous discoveries—which presaged the era of big science and nuclear bombs—Europe was moving inexorably toward totalitarianism and war. In April of that year, about forty of the world’s leading physicists—including Werner Heisenberg, Lise Meitner, and Paul Dirac—came to Niels Bohr’s Copenhagen Institute for their annual informal meeting about the frontiers of physics. Physicist Gino Segrè brings to life this historic gathering, which ended with a humorous skit based on Goethe’s Faust—a skit that eerily foreshadowed events that would soon unfold. Little did the scientists know the Faustian bargains they would face in the near future. Capturing the interplay between the great scientists as well as the discoveries they discussed and debated, Segrè evokes the moment when physics—and the world—was about to lose its innocence.