Stephen Hawking's worldwide bestseller, A Brief History of Time, has been a landmark volume in scientific writing. Its author's engaging voice is one reason, and the compelling subjects he addresses is another: the nature of space and time, the role of God in creation, the history and future of the universe. But it is also true that in the years since its publication, readers have repeatedly told Professor Hawking of their great difficulty in understanding some of the book's most important concepts.

This is the origin of and the reason for A Briefer History of Time: its author's wish to make its content more accessible to readers -- as well as to bring it up-to-date with the latest scientific observations and findings.

Although this book is literally somewhat "briefer," it actually expands on the great subjects of the original. Purely technical concepts, such as the mathematics of chaotic boundary conditions, are gone. Conversely, subjects of wide interest that were difficult to follow because they were interspersed throughout the book have now been given entire chapters of their own, including relativity, curved space, and quantum theory.

This reorganization has allowed the authors to expand areas of special interest and recent progress, from the latest developments in string theory to exciting developments in the search for a complete unified theory of all the forces of physics. Like prior editions of the book - but even more so - A Briefer History of Time will guide nonscientists everywhere in the ongoing search for the tantalizing secrets at the heart of time and space."

Generations have grown up knowing that the equation E=mc2 changed the shape of our world but never understanding what it actually means and why it was so significant. Here, Bodanis writes the biography of this great discovery and turns a seemingly impenetrable theory into a dramatic and accessible human achievement. Bodanis begins by introducing the science and scientists forming the backdrop to Einstein's discovery. Having demystified the equation, he explains its science and brings it to life; making clear the astonishing array of discoveries and consequences it made possible and its impact on our daily lives. At last, the masses can understand that Einstein did nothing less than open the door to the inner structure of the universe.

Why do we look the way we do? What does the human hand have in common with the wing of a fly? Are breasts, sweat glands, and scales connected in some way? To better understand the inner workings of our bodies and to trace the origins of many of today's most common diseases, we have to turn to unexpected sources: worms, flies, and even fish.

Neil Shubin, a leading paleontologist and professor of anatomy who discovered Tiktaalik—the "missing link" that made headlines around the world in April 2006—tells the story of evolution by tracing the organs of the human body back millions of years, long before the first creatures walked the earth. By examining fossils and DNA, Shubin shows us that our hands actually resemble fish fins, our head is organized like that of a long-extinct jawless fish, and major parts of our genome look and function like those of worms and bacteria.

Shubin makes us see ourselves and our world in a completely new light. Your Inner Fish is science writing at its finest—enlightening, accessible, and told with irresistible enthusiasm.

Learn about the science of Forensics with iMinds insightful audio knowledge series.

Forensics is the use of science to solve crimes. The word "forensics" comes from the Latin term "for ensis", which is closely related to the modern English word "forum". This close connection highlights the strong linkage between forensic evidence and courts – or forums – of law. The aim of forensic science is to find evidence which can be used in a court of law.

Forensic science has been used in some form for much of human history. For example, in 13th century China, writer Song Ci wrote how to examine a body to determine whether a victim had been drowned or strangled. But forensics has developed a lot in the last 800 years!

Perfect to listen to while commuting, exercising, shopping or cleaning the house.. iMinds brings knowledge to your MP3 with 8 minute information segments to whet your mental appetite and broaden your mind.

Laurence Gonzales turns his talent for gripping narrative, knowledge of the way our minds and bodies work, and bottomless curiosity about the world to the topic of how we can best use the lessons of our evolutionary history to overcome the hazards of everyday life. He finds that natural laws profoundly affect our actions, and he reveals the hidden causes and costs of our behavior, whether as individuals or as a species whose decisions may be leading to darker times. Whether you are climbing a mountain or the corporate ladder, Everyday Survival will change the way you view your choices in our complex, dangerous, and quickly changing world.

"What should we have for dinner?" To one degree or another this simple question assails any creature faced with a wide choice of things to eat. Anthropologists call it the omnivore's dilemma.

In his million-copy bestseller Guns, Germs, and Steel, Jared Diamond examined how and why Western civilizations developed the technologies and immunities that allowed them to dominate much of the world. Now in this brilliant companion volume, Diamond probes the other side of the equation: What caused some of the great civilizations of the past to collapse into ruin, and what can we learn from their fates?

Giving voice to a population rarely acknowledged in writings about the South, Sweet Tea collects life stories from black gay men who were born, raised, and continue to live in the southern United States. E. Patrick Johnson challenges stereotypes of the South as "backward" or "repressive," suggesting that these men draw upon the performance of "southernness"--politeness, coded speech, and religiosity, for example--to legitimate themselves as members of both southern and black cultures. At the same time, Johnson argues, they deploy those same codes to establish and build friendship networks and to find sexual partners and life partners.

Traveling to every southern state, Johnson conducted interviews with more than seventy black gay men between the ages of 19 and 93. The voices collected here dispute the idea that gay subcultures flourish primarily in northern, secular, urban areas. In addition to filling a gap in the sexual history of the South, Sweet Tea offers a window into the ways that black gay men negotiate their sexual and racial identities with their southern cultural and religious identities. The narratives also reveal how they build and maintain community in many spaces and activities, some of which may appear to be antigay. Ultimately, Sweet Tea validates the lives of these black gay men and reinforces the role of storytelling in both African American and southern cultures.

From Brian Greene, one of the world’s leading physicists, comes a grand tour of the universe that makes us look at reality in a completely different way.

Space and time form the very fabric of the cosmos. Yet they remain among the most mysterious of concepts. Is space an entity? Why does time have a direction? Could the universe exist without space and time? Can we travel to the past?

Greene uses these questions to guide us toward modern science’s new and deeper understanding of the universe. From Newton’s unchanging realm in which space and time are absolute, to Einstein’s fluid conception of spacetime, to quantum mechanics’ entangled arena where vastly distant objects can bridge their spatial separation to instantaneously coordinate their behavior or even undergo teleportation, Greene reveals our world to be very different from what common experience leads us to believe. Focusing on the enigma of time, Greene establishes that nothing in the laws of physics insists that it run in any particular direction and that “time’s arrow” is a relic of the universe’s condition at the moment of the big bang. And in explaining the big bang itself, Greene shows how recent cutting-edge developments in superstring and M-theory may reconcile the behavior of everything from the smallest particle to the largest black hole. This startling vision culminates in a vibrant eleven-dimensional “multiverse,” pulsating with ever-changing textures, where space and time themselves may dissolve into subtler, more fundamental entities.

Sparked by the trademark wit, humor, and brilliant use of analogy that have made The Elegant Universe a modern classic, Brian Greene takes us all, regardless of our scientific backgrounds, on an irresistible and revelatory journey to the new layers of reality that modern physics has discovered lying just beneath the surface of our everyday.

If you think your mind and your brain are one and the same, think again. According to interpersonal neurobiology pioneer Daniel J. Siegel, the mind actually emerges out of the interaction between your brain and your relationships. Now, on The Neurobiology of “We”, Dr. Siegel invites you on a journey to discover this revolutionary new model of human development—one that can positively transform trauma, move you from stress to calm and equanimity, and promote well–being for you, your family, or even your community.

Throughout history, rivers have been our foremost source of fresh water both for agriculture and for individual consumption, but now economists say that by 2025 water scarcity will cut global food production by more than the current U.S. grain harvest. In this groundbreaking book, veteran science correspondent Fred Pearce focuses on the dire state of the world's rivers to provide our most complete portrait yet of the growing world water crisis and its ramifications for us all.

Economists say that by 2025 water scarcity will cut global food production by more than the current U.S. grain harvest. Fred Pearce, veteran science correspondent, traveled to more than thirty countries examining the current state of crucial water sources like the Indus River in Pakistan, the Colorado River in the United States, and the Yellow and Yangtze rivers in China. Pearce deftly weaves together the complicated scientific, economic, and historic dimensions of the water crisis, showing us its complex origins - from waste to wrong-headed engineering projects to high-yield crop varieties that have saved developing countries from starvation but are now emptying their water reserves. He reveals the most daunting water issues we face today, among them the threat of flooding in China's Yellow River, where rising silt levels will prevent dikes from containing floodwaters; the impoverishment of Pakistan's Sindh, a once-fertile farming valley now destroyed by the 14 million tons of salt that the much-depleted Indus deposits annually on the land but cannot remove; the disappearing Colorado River, whose reservoirs were once the lifeblood of seven states but which are now stressed by overuse; and the poisoned springs of Palestine and the Jordan River, where Israeli control of the water supply has only fed conflict between Israelis and Palestinians. The situation is dire, but not without remedy. Pearce argues that the solution to the growing worldwide water shortage is not more and bigger dams but greater efficiency and a new water ethic based on managing the water cycle for maximum social benefit rather than narrow self-interest.

Her name was Henrietta Lacks, but scientists know her as HeLa. She was a poor Southern tobacco farmer who worked the same land as her slave ancestors, yet her cells--taken without her knowledge--became one of the most important tools in medicine. The first "immortal" human cells grown in culture, they are still alive today, though she has been dead for more than sixty years. If you could pile all HeLa cells ever grown onto a scale, they'd weigh more than 50 million metric tons--as much as a hundred Empire State Buildings. HeLa cells were vital for developing the polio vaccine; uncovered secrets of cancer, viruses, and the atom bomb's effects; helped lead to important advances like in vitro fertilization, cloning, and gene mapping; and have been bought and sold by the billions.

Yet Henrietta Lacks remains virtually unknown, buried in an unmarked grave.

Now Rebecca Skloot takes us on an extraordinary journey, from the "colored" ward of Johns Hopkins Hospital in the 1950s to stark white laboratories with freezers full of HeLa cells; from Henrietta's small, dying hometown of Clover, Virginia--a land of wooden slave quarters, faith healings, and voodoo--to East Baltimore today, where her children and grandchildren live and struggle with the legacy of her cells.

Henrietta's family did not learn of her "immortality" until more than twenty years after her death, when scientists investigating HeLa began using her husband and children in research without informed consent. And though the cells had launched a multimillion-dollar industry that sells human biological materials, her family never saw any of the profits. As Rebecca Skloot so brilliantly shows, the story of the Lacks family--past and present--is inextricably connected to the dark history of experimentation on African Americans, the birth of bioethics, and the legal battles over whether we control the stuff we are made of.

Over the decade it took to uncover this story, Rebecca became enmeshed in the lives of the Lacks family--especially Henrietta's daughter Deborah, who was devastated to learn about her mother's cells. She was consumed with questions: Had scientists cloned her mother? Did it hurt her when researchers infected her cells with viruses and shot them into space? What happened to her sister, Elsie, who died in a mental institution at the age of fifteen? And if her mother was so important to medicine, why couldn't her children afford health insurance?

Intimate in feeling, astonishing in scope, and impossible to put down, The Immortal Life of Henrietta Lacks captures the beauty and drama of scientific discovery, as well as its human consequences.


From the Hardcover edition.

Whether you load your iPod with Bach or Bono, music has a significant role in your life—even if you never realized it.

A brain scientist's journey from a debilitating stroke to full recovery becomes an inspiring exploration of human consciousness and its possibilities

On the morning of December 10, 1996, Jill Bolte Taylor, a thirty-seven-year-old Harvard-trained brain scientist, experienced a massive stroke when a blood vessel exploded in the left side of her brain. A neuroanatomist by profession, she observed her own mind completely deteriorate to the point that she could not walk, talk, read, write, or recall any of her life, all within the space of four brief hours. As the damaged left side of her brain—the rational, grounded, detail- and time-oriented side—swung in and out of function, Taylor alternated between two distinct and opposite realties: the euphoric nirvana of the intuitive and kinesthetic right brain, in which she felt a sense of complete well-being and peace; and the logical, sequential left brain, which recognized Jill was having a stroke, and enabled her to seek help before she was lost completely.

In MY STROKE OF INSIGHT, Taylor shares her unique perspective on the brain and its capacity for recovery, and the sense of omniscient understanding she gained from this unusual and inspiring voyage out of the abyss of a wounded brain. It would take eight years for Taylor to heal completely. Because of her knowledge of how the brain works, her respect for the cells composing her human form, and most of all an amazing mother, Taylor completely repaired her mind and recalibrated her understanding of the world according to the insights gained from her right brain that morning of December 10th.

Today Taylor is convinced that the stroke was the best thing that could have happened to her. It has taught her that the feeling of nirvana is never more than a mere thought away. By stepping to the right of our left brains, we can all uncover the feelings of well-being and peace that are so often sidelined by our own brain chatter. A fascinating journey into the mechanics of the human mind, MY STROKE OF INSIGHT is both a valuable recovery guide for anyone touched by a brain injury, and an emotionally stirring testimony that deep internal peace truly is accessible to anyone, at any time.

This is a study of how intellectuals as a class affect modern societies by shaping the climate of opinion in which official policies develop, on issues ranging from economics to law to war and peace.

The thesis of Intellectuals and Society is that the influence of intellectuals is not only greater than in previous eras but also takes a very different form from that envisioned by those like Machiavelli and others who have wanted to directly influence rulers. It has not been by shaping the opinions or directing the actions of the holders of power that modern intellectuals have most influenced the course of events, but by shaping public opinion in ways that affect the actions of power holders in democratic societies, whether or not those power holders accept the general vision or the particular policies favored by intellectuals. Even government leaders with disdain or contempt for intellectuals have had to bend to the climate of opinion shaped by those intellectuals.

Intellectuals and Society not only examines the track record of intellectuals in the things they have advocated but also analyzes the incentives and constraints under which their views and visions have emerged. One of the most surprising aspects of this study is how often intellectuals have been proved not only wrong, but grossly and disastrously wrong in their prescriptions for the ills of society—and how little their views have changed in response to empirical evidence of the disasters entailed by those views.