IFLScience and puzzles unite in the IFL Science! The Official Science Puzzle Book - a perfect combination for anyone who wants to be amazed by the furthest reaches of scientific exploration while solving an enjoyable conundrum. Can you successfully crack the code hidden in the synthetic DNA? Can you bridge neurons in a brain correctly and create consciousness? Are you able to split the atoms without setting off a dangerous chain reaction? These puzzles - alongside more than 100 other enigmas and questions - are combined with introductions to dozens of scientific concepts and discoveries, providing an opportunity for every aspiring scientist to learn and explore while they solve.

This book brings together some of the results and ideas produced by a large number of people-colleagues and students with whom I am privileged to work in the laboratory at Rockefeller University. In terms of my personal history I see it as a confluence of creative forces persons from whom I have learned. I was instructed in neuroanatomy by Walle J. H. Nauta at M. I. T., and later in a course at Harvard Medical School under the direction of Richard Sidman. At Harvard Medical School, where M. I. T. graduate students were allowed to cross register, the superb neurophysiology course was under the guiding spirit of Stephen Kuffler. Later, I benefited greatly from participating in his summer course in electrophysiological techniques at Woods Hole. Eric Kandel and his colleagues have provided us with the most exciting contemporary approach to the conceptualization and study of cellular mechanisms for behavior. Here at Rockefeller, Carl Pfaffmann and Neal Miller have been leaders in every sense of the word. Not only did they provide me with opportunities to grow to scientific maturity; they also set an example of clear thinking about mechanisms for mammalian behavior patterns. I wrote this book to show how the systematic use of increasingly detailed electrophysiological, neuroanatomical, and neuroendocrine tech niques can explain the mechanism for a mammalian behavioral response. The behavior in question happens to be sensitive to steroid hormones and plays a central role in reproduction."

The articles treat subjects such as the social responsibility of scientists, thermonuclear processes in stars and stellar neutrinos, turbulence and the emergence of planetary systems.

Considerable attention is paid to the unity of nature, the nature of time, and to information about, and interpretation of, the structure of quantum theory, all important philosophical problems of our times.

The last section describes von Weizs cker's ur-hypothesis and how it will theoretically permit the construction of particles and interactions from quantized bits of information.

'A riveting ride through your own brain' - Adam Grant, New York Times bestselling author of Originals WINNER of the Society for Personality and Social Psychology's book prize for 'The Promotion of Social and Personality Science' If humans are fundamentally good, why do we engage in acts of great cruelty? If we are evil, why do we sometimes help others at a cost to ourselves? Whether humans are good or evil is a question that has plagued philosophers and scientists for as long as there have been philosophers and scientists. Many argue that we are fundamentally selfish, and only the rules and laws of our societies and our own relentless efforts of will can save us from ourselves. But is this really true? Abigail Marsh is a social neuroscientist who has closely studied the brains of both the worst and the best among us-from children with psychopathic traits whose families live in fear of them, to adult altruists who have given their own kidneys to strangers. Her groundbreaking findings suggest a possibility that is more optimistic than the dominant view. Humans are not good or evil, but are equally (and fundamentally) capable of good and evil. In The Fear Factor Marsh explores the human capacity for caring, drawing on cutting edge research findings from clinical, translational and brain imaging investigations on the nature of empathy, altruism, and aggression and brings us closer to understanding the basis of humans' social nature. 'You won't be able to put it down' - Daniel Gilbert, New York Times bestselling author of Stumbling on Happiness '[It] reads like a thriller... One of the most mind-opening books I have read in years' - Matthieu Ricard, author of Altruism

This revised and greatly expanded edition of the Russian classic contains a wealth of new information about the lives of many great mathematicians and scientists, past and present. Written by a distinguished mathematician and featuring a unique mix of mathematics, physics, and history, this text combines original source material and provides careful explanations for some of the most significant discoveries in mathematics and physics. What emerges are intriguing, multifaceted biographies that will interest readers at all levels.

This volume represents the published proceedings of an international conference on the Neurobiology and Evolution of the Mechanosensory Lateral Line System held August 31 to September 4, 1987, at the Center for Interdisciplinary Research at the University of Bielefeld, West Germany. The goal of this confer ence was to bring together researchers from all over the world to share informa tion about a major aquatic sensory system, the evolution and function of which have largely remained an enigma since the 18th century. The "lateral line" or "lateralis" system has been used as an umbrella term to describe what originally (without the aid of modern anatomical techniques) looked like a series of pits, grooves, and lines on the head and trunk of fishes and some amphibians. For at least the past 30 years, however, it has been recognized that the lateralis system comprises not one, but at least two functional classes of receptors: mechanoreceptors and electroreceptors. The relative ease with which the appropriate stimulus could be defined and measured for the electroreceptive class has resulted in an explosion of information on this submodality during the past 20 years. As a result, there is little ambiguity about the overall function of the electrosensory system, now generally regarded as an independent system in its own right. A similarly clear definition for the function of the mechanosensory lateralis system has not been as forthcoming."

This book reveals that scientific logic is an extension of common, everyday logic and that it can and should be understood by everyone. Written by a practicing and successful scientist, it explores why questions arise in science and looks at how questions are tackled, what constitutes a valid answer, and why. The author does not bog the reader down in technical details or lists of facts to memorize. He uses accessible examples, illustrations, and descriptions to address complex issues. The book should prove enlightening to anyone who has been perplexed by the meaning, relevance, and moral or political implications of science.

This book is the first in a new series entitled ''Advances in Circadian Physiology." Our aim in this and subsequent volumes is to document and critically analyze the state of knowledge on biological clocks, circadian rhythms and their applications to human health, safety, performance and productivity. In the past twenty years, scientists have uncovered an elegant system of biological clocks in the brain that govern the daily rhythms of sleep and alertness, hormone levels and temperature and a myriad other aspects of body function. From the first identification of the suprachiasmatic biological clock in the early 1970s, this field of research has exploded in information and implication. These biological clocks, so perfectly attuned to the pace of a bygone era, are the root cause of the human fatigue, error, accidents and reduced productivity precipi tated by the around-the-clock challenges of today's industry and society. Research on these clocks offers the promise of fundamental solutions which can help the human race adjust physiologically to the technology-paced world we have created."

An American Scientist on the Research Frontier is the first scholarly study of the nineteenth-century American scientist Edward Williams Morley. In part, it is the long-overdue story of a man who lent his name to the Michelson and Morley Ether-Drift Experiment, and who conclusively established the atomic weight of oxygen. It is also the untold story of science in provincial America: what Hamerla presents as science on the "American research frontier."

Hamerla carefully and usefully directs our attention away from more familiar sites of scientific activity during the nineteenth century, such as Harvard, Yale and Johns Hopkins. In so doing, he expands and reframes our understanding of how and where important scientific inquiry occurred during these years: not only in the Northeastern centers of elite academia, but also in the vastly different cultural contexts of Hudson and Cleveland, Ohio.

This important examination of Morley s struggle for personal and professional legitimacy extends and transforms our understanding of science during a foundational period, and leads to a number of unique conclusions that are vital to the literature and historiography of science. By revealing important aspects of the scientific culture of the American heartland, An American Scientist on the Research Frontier deepens our understanding of an individual scientist and of American science more broadly. In so doing, Hamerla changes the way we approach and understand the creation of scientific knowledge, scientific communities, and the history of science itself.

The seminal 1970 Moscow thesis of Grigoriy A. Margulis, published for the first time. Entitled "On Some Aspects of the Theory of Anosov Systems," it uses ergodic theoretic techniques to study the distribution of periodic orbits of Anosov flows. The thesis introduces the "Margulis measure" and uses it to obtain a precise asymptotic formula for counting periodic orbits. This has an immediate application to counting closed geodesics on negatively curved manifolds. The thesis also contains asymptotic formulas for the number of lattice points on universal coverings of compact manifolds of negative curvature.

The thesis is complemented by a survey by Richard Sharp, discussing more recent developments in the theory of periodic orbits for hyperbolic flows, including the results obtained in the light of Dolgopyat's breakthroughs on bounding transfer operators and rates of mixing.

Death by Euphoria. Dysgenics. Population Death Spiral. Genetic Superhumans. Geomagnetic Reversal. Galactic Collision. Strangelets. Whether we like it or not, everything's going to come to a pretty unpleasant halt on our planet at some point in the future. What we don't know is what form our extinction is likely to take. In this accessible and entertaining book, acclaimed writer Alok Jha explains the head-spinning apocalyptic science behind 50 horrifying doomsday scenarios.

In 1919 the Prussian Ministry of Science, Arts and Culture opened a dossier on "Einstein's Theory of Relativity." It was rediscovered by the author in 1961 and is used in conjunction with numerous other subsequently identified 'Einstein' files as the basis of this fascinating book. In particular, the author carefully scrutinizes Einstein's FBI file from 1950-55 against mostly unpublished material from European including Soviet sources and presents hitherto unknown documentation on Einstein's alleged contacts with the German Communist Party and the Comintern. Siegfried Grundmann's thorough study of Einstein's participation on a committee of the League of Nations, based on archival research in Geneva, is also new.

This book outlines Einstein's image in politics and German science policy. It covers the period from his appointment as a researcher in Berlin to his fight abroad against the "boycott of German science" after World War I and his struggle at home against attacks on "Jewish physics" of which he was made a prime target. An important gap in the literature on Einstein is thus filled, contributing much new material toward a better understanding of Einstein's so rigorous break with Germany.

The infinite! No other question has ever moved so profoundly the spirit of man; no other idea has so fruitfully stimulated his intellect; yet no other concept stands in greater need of clarification than that of the infinite. . . - David Hilbert (1862-1943) Infinity is a fathomless gulf, There is a story attributed to David Hilbert, the preeminent mathe into which all things matician whose quotation appears above. A man walked into a vanish. hotel late one night and asked for a room. "Sorry, we don't have o Marcus Aurelius (121- 180), Roman Emperor any more vacancies," replied the owner, "but let's see, perhaps and philosopher I can find you a room after alL" Leaving his desk, the owner reluctantly awakened his guests and asked them to change their rooms: the occupant of room #1 would move to room #2, the occupant of room #2 would move to room #3, and so on until each occupant had moved one room over. To the utter astonish ment of our latecomer, room #1 suddenly became vacated, and he happily moved in and settled down for the night. But a numbing thought kept him from sleep: How could it be that by merely moving the occupants from one room to another, the first room had become vacated? (Remember, all of the rooms were occupied when he arrived.

A long time ago botany used to be regarded as the scientia amabilis, the friendly science, eminently suitable for leisured amateurs. Since then, and particularly in this century, it has grown tremendously in its importance and in its intimate contacts with various other disciplines of science, some of which, like plant genetics and plant physiology, at one time indeed used to be included under the broad term botany. In spite of the fact that such subjects have expanded into major scientific fields of their own, botany, the mother science, continues to maintain its central place: this is because it deals with plants which constitute one of the most vital life-supporting systems of this planet. Furthermore, interacting and benefiting from advances made in other sciences, it has steadily progressed in a number of areas. Experimental embryology of vascular plants is one such field where spectacular advances have been made in recent years. The time is therefore particularly opportune for the publication of an authoritative book on the subject. It is very appropriate that the book has been planned and edited by Professor B. M. Johri, one of India's foremost botanists, whose contributions in embryology, plant morphology and morphogenesis are internationally known. He was closely associated over a number of years with Professor P. Maheshwari, the great botanist and embryologist, to whom the book is dedicated.

The Bible was the first scientific textbook of all; and it got some things right (and plenty more wrong). Steve Jones' new book rewrites it in the light of modern science. Are we all descended from a single couple, a real-life Adam and Eve? Was the Bible's great flood really a memory of the end of the Ice Age? Will we ever get back to Methuselah given that British life expectancy is still rising by six hours a day, every day? Many people deny the power of faith, many more the power of science. In this ground-breaking work, geneticist Steve Jones explores their shared mysteries - from the origins of life and humankind to sex, age, death and the end of the universe. He steps aside from the noisy debate between believers and unbelievers to show how the same questions preoccupy us today as in biblical times - and that science offers many of the answers. Erudite and accessible, The Serpent's Promise is a witty and thoughtful account of the ability and the limits of science to tell us what we are.

Consciousness is our gateway to experience: it enables us to recognize Van Gogh's starry skies, be enraptured by Beethoven's Fifth, and stand in awe of a snowcapped mountain. Yet consciousness is subjective, personal, and famously difficult to examine: philosophers have for centuries declared this mental entity so mysterious as to be impenetrable to science. In The Ravenous Brain , neuroscientist Daniel Bor departs sharply from this historical view, and builds on the latest research to propose a new model for how consciousness works. Bor argues that this brain-based faculty evolved as an accelerated knowledge gathering tool. Consciousness is effectively an idea factory- that choice mental space dedicated to innovation, a key component of which is the discovery of deep structures within the contents of our awareness. This model explains our brains' ravenous appetite for information- and in particular, its constant search for patterns. Why, for instance, after all our physical needs have been met, do we recreationally solve crossword or Sudoku puzzles? Such behaviour may appear biologically wasteful, but, according to Bor, this search for structure can yield immense evolutionary benefits- it led our ancestors to discover fire and farming, pushed modern society to forge ahead in science and technology, and guides each one of us to understand and control the world around us. But the sheer innovative power of human consciousness carries with it the heavy cost of mental fragility. Bor discusses the medical implications of his theory of consciousness, and what it means for the origins and treatment of psychiatric ailments, including attention-deficit disorder, schizophrenia, manic depression, and autism. All mental illnesses, he argues, can be reformulated as disorders of consciousness- a perspective that opens up new avenues of treatment for alleviating mental suffering. A controversial view of consciousness, The Ravenous Brain links cognition to creativity in an ingenious solution to one of science's biggest mysteries.

Hungry Hollow is simply an ordinary creek winding through about a mile of ordinary forest and meadow somewhere east of the Rocky Mountains. But like all such places, it is also a vast and intricate web of life with extensions that reach around the planet, back into prehistoric time, and within to a teeming, bizarre microscopic world. In dozens of short, wonderfully imaginative chapters, A.K. Dewdney introduces us to the denizens of this world. We encounter a hackberry tree whose branches perfectly reproduce the taxonomic Tree of Life, learn how it would look and feel to shrink by stages to the size of an amoeba while swimming in a river, watch a toad win the lottery, and see the world of Hungry Hollow from the viewpoint of bears, earthworms, and even stones. This is an excursion into natural history like no other.

An awe-inspiring exploration of the sounds of the living Earth, and the joys and threats of human music, language and noise. 'A symphony, filled with the music of life . . . fascinating, heartbreaking, and beautifully written.' ELIZABETH KOLBERT, author of The Sixth Extinction 'Sounds Wild and Broken affirms Haskell as a laureate for the earth, his finely tuned scientific observations made more potent by his deep love for the wild he hopes to save.' NEW YORK TIMES 'Wonderful . . . a reminder that the narrow aural spectrum on which most of us operate, and the ways in which human life is led, blocks out the planet's great, orchestral richness.' GUARDIAN We live on a planet alive with song, music, and speech. David George Haskell explores how these wonders came to be. In rainforests shimmering with insect sounds and swamps pulsing with frog calls we learn about evolution's creative powers. From birds in the Rocky Mountains and on the streets of Paris, we discover how animals learn their songs and adapt to new environments. Below the waves, we hear our kinship to beings as different as snapping shrimp, toadfish, and whales. In the startlingly divergent sonic vibes of the animals of different continents, we experience the legacies of plate tectonics, the deep history of animals and their movements around the world, and the quirks of aesthetic evolution. Starting with the origins of animal song and traversing the whole arc of Earth's history, Haskell illuminates and celebrates the emergence of the varied sounds of our world. In mammoth ivory flutes from Paleolithic caves, violins in modern concert halls, and electronic music in earbuds, we learn that human music and language belong within this story of ecology and evolution. Yet we are also destroyers, now silencing or smothering many of the sounds of the living Earth. Haskell takes us to threatened forests, noise-filled oceans, and loud city streets to show that sonic crises are not mere losses of sensory ornament. Sound is a generative force, and so the erasure of sonic diversity makes the world less creative, less beautiful. Sounds Wild and Broken is an invitation to listen, wonder, act. 'Absolutely fascinating.' MARIELLA FROSTRUP, TIMES RADIO 'Enlightening and sobering.' JINI REDDY, METRO

One of the greatest scientific and technological achievements of the 21st century will be to cast a light on the eternal darkness of the deep ocean and this book identifies the key determinants of life or death in its extreme environment. Dr. Erik Seedhouse examines how individuals survive free dives to 200m, how humans adapt to breathing exotic gas mixes at depths exceeding 700m, and how technological innovation will enable humans to enter unendurable realms. The book describes the problems unique to the hostile environment of the deep ocean, such as decompression sickness, discusses how the human body responds to increased pressure, and what happens when adaptive mechanisms fail. Ocean Outpost describes how the technology will evolve, how crews will be selected and trained and what a typical underwater mission will entail. The book also chronicles the frontiers of diving medicine that will eventually take humans into the midst of a world we could once only guess at.

The ability to measure accurately the hormones regulating calcium homeosta sis is the fundamental first step toward understanding the roles these hormones play in health and disease. Techniques for such measurements have only been available for the past 10 years or so and remain in a state of rapid development. Sensitive parathyroid hormone (PTH) radioimmunoassays appeared in the early 1970s, and with them came a whole new appreciation for the prevalence and implications of hyperparathyroidism, primary or secondary, in the popu lation. The calcitonin (CT) radioimmunoassay came later and achieved rapid success in the. diagnosis of a previously poorly understood cancer, medullary carcinoma of the thyroid, frequently associated with the familial multiple endo crine neoplasia type 2 syndromes (a and b). As the sensitivity of the calcitonin radioimmunoassay has improved, our understanding of the role of calcitonin in normal physiological processes has increased. The knowledge that vitamin D must be metabolized to produce its biologic effects is only 15 years old. This has had profound implications in our understanding of a variety of metabolic bone, kidney, and gastrointestinal diseases. Assays to measure the major cir culating form of vitamin D, 25-hydroxyvitamin D, were described 10 years ago. Assays for the other metabolites, in particular, 1,25-dihydroxyvitamin D, were described even more recently. As of today, we know of many vitamin D metabolites and have developed the techniques to measure most of them; how ever, many questions remain concerning their physiological role."

Feynman once selected, as the single most important statement in science, that everything is made of atoms. It follows that the properties of everything depend on how these atoms are joined together, giving rise to the vast field we know of today as chemistry. In this unique book specifically written to bridge the gap between chemistry and the layman, Braterman has put together a series of linked essays on chemistry related themes that are particularly engaging.The book begins with the age of the earth, and concludes with the life cycle of stars. In between, there are atoms old and new, the ozone hole mystery and how it was solved, synthetic fertilisers and explosives, reading the climate record, the extraction of metals, the wetness of water, and how the greenhouse effect on climate really works. A chapter in praise of uncertainty leads on to the "fuzziness" and sharing of electrons, and from there to molecular shape, grass-green and blood-red, the wetness of water, and molecular recognition as the basis of life.Organised in such a way as to illustrate and develop underlying principles and approaches, this book will appeal to anyone interested in chemistry, as well as its history and key personalities. Where many other titles have failed, this book succeeds brilliantly in capturing the spirit and essence of chemistry and delivering the science in easily digestible terms.

Phthalate esters are an important class of chemicals widely used in commercial applications, primarily as plasticizers to soften vinyl, but they are also used in consumer products. This book reviews the state of the scientific knowledge of phthalate esters in the environment. Key information reported includes: analytical methodologies; a compilation of concentration measurements in water, sediment, soil, air, dust, and food; plus an assessment of critical exposure pathways. In addition, key physical properties data and fate characteristics that control exposure are reviewed. Also included are pertinent ecotoxicity data and mammalian toxicity and human health information. Finally, the monograph addresses potential environmental risks.

With wit, colour and clarity, What A Wonderful World quickly and painlessly brings us up to speed on how the world of the 21st century works. From economics to physics and biology to philosophy, Marcus Chown explains the complex forces that shape our universe. Why do we breathe? What is money? How does the brain work? Why did life invent sex? Does time really exist? How does capitalism work - or not, as the case may be? Where do mountains come from? How do computers work? How did humans get to dominate the Earth? Why is there something rather than nothing? In What a Wonderful World, Marcus Chown, bestselling author of Quantum Theory Cannot Hurt You and the Solar System app, uses his vast scientific knowledge and deep understanding of extremely complex processes to answer simple questions about the workings of our everyday lives. Lucid, witty and hugely entertaining, it explains the basics of our essential existence, stopping along the way to show us why the Atlantic is widening by a thumbs' length each year, how money permits trade to time travel why the crucial advantage humans had over Neanderthals was sewing and why we are all living in a giant hologram.

The twentieth century is the period during which the history of Greek mathematics reached its greatest acme. Indeed, it is by no means exaggerated to say that Greek mathematics represents the unique field from the wider domain of the general history of science which was included in the research agenda of so many and so distinguished scholars, from so varied scientific communities (historians of science, historians of philosophy, mathematicians, philologists, philosophers of science, archeologists etc. ), while new scholarship of the highest quality continues to be produced. This volume includes 19 classic papers on the history of Greek mathematics that were published during the entire 20th century and affected significantly the state of the art of this field. It is divided into six self-contained sections, each one with its own editor, who had the responsibility for the selection of the papers that are republished in the section, and who wrote the introduction of the section. It constitutes a kind of a Reader book which is today, one century after the first publications of Tannery, Zeuthen, Heath and the other outstanding figures of the end of the 19th and the beg- ning of 20th century, rather timely in many respects.

Winner of the Association of American Publishers PROSE Award for Excellence in Biological and Life Sciences A world-renowned researcher of animal behavior reveals the extraordinary orienteering skills of desert ants, offering a thrilling account of the sophisticated ways insects function in their natural environments. Cataglyphis desert ants are agile ultrarunners who can tolerate near-lethal temperatures when they forage in the hot midday sun. But it is their remarkable navigational abilities that make these ants so fascinating to study. Whether in the Sahara or its ecological equivalents in the Namib Desert and Australian Outback, the Cataglyphis navigators can set out foraging across vast expanses of desert terrain in search of prey, and then find the shortest way home. For almost half a century, Rudiger Wehner and his collaborators have devised elegant experiments to unmask how they do it. Through a lively and lucid narrative, Desert Navigator offers a firsthand look at the extraordinary navigational skills of these charismatic desert dwellers and the experiments that revealed how they strategize and solve complex problems. Wehner and his team discovered that these insect navigators use visual cues in the sky that humans are unable to see, the Earth's magnetic field, wind direction, a step counter, and panoramic "snapshots" of landmarks, among other resources. The ants combine all of this information to steer an optimal course. At any given time during their long journey, they know exactly where to go. It is no wonder these nimble and versatile creatures have become models in the study of animal navigation. Desert Navigator brings to light the marvelous capacity and complexity found in these remarkable insects and shows us how mini brains can solve mega tasks.